JPS6120491B2 - - Google Patents
Info
- Publication number
- JPS6120491B2 JPS6120491B2 JP1897578A JP1897578A JPS6120491B2 JP S6120491 B2 JPS6120491 B2 JP S6120491B2 JP 1897578 A JP1897578 A JP 1897578A JP 1897578 A JP1897578 A JP 1897578A JP S6120491 B2 JPS6120491 B2 JP S6120491B2
- Authority
- JP
- Japan
- Prior art keywords
- preform
- glass
- sintering
- soot
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims description 82
- 239000004071 soot Substances 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 56
- 238000005245 sintering Methods 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 33
- 238000000576 coating method Methods 0.000 claims description 27
- 239000002274 desiccant Substances 0.000 claims description 26
- 239000011248 coating agent Substances 0.000 claims description 25
- 230000007062 hydrolysis Effects 0.000 claims description 21
- 238000006460 hydrolysis reaction Methods 0.000 claims description 21
- 239000002019 doping agent Substances 0.000 claims description 18
- 239000005373 porous glass Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 239000000460 chlorine Substances 0.000 claims description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 238000000151 deposition Methods 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 230000008021 deposition Effects 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 46
- 239000007789 gas Substances 0.000 description 45
- 239000000203 mixture Substances 0.000 description 24
- 239000000835 fiber Substances 0.000 description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 20
- 238000001035 drying Methods 0.000 description 20
- 239000001301 oxygen Substances 0.000 description 20
- 229910052760 oxygen Inorganic materials 0.000 description 20
- 229910003902 SiCl 4 Inorganic materials 0.000 description 14
- 239000001307 helium Substances 0.000 description 14
- 229910052734 helium Inorganic materials 0.000 description 14
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 14
- 229910005793 GeO 2 Inorganic materials 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000012535 impurity Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000005350 fused silica glass Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910006113 GeCl4 Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- IEXRMSFAVATTJX-UHFFFAOYSA-N tetrachlorogermane Chemical compound Cl[Ge](Cl)(Cl)Cl IEXRMSFAVATTJX-UHFFFAOYSA-N 0.000 description 4
- 229910003910 SiCl4 Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 3
- 229910020175 SiOH Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000004581 coalescence Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- -1 hydroxide ions Chemical class 0.000 description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052754 neon Inorganic materials 0.000 description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000001429 visible spectrum Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 229910015844 BCl3 Inorganic materials 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 241001669573 Galeorhinus galeus Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229910019213 POCl3 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910003074 TiCl4 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001392 phosphorus oxide Inorganic materials 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Glass Melting And Manufacturing (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Description
æ¬çºæã¯ãé«å質ã®å
å°æ³¢ç®¡ãã¬ã³ãºãããªãº
ã çã補é ãããé«å åŠçŽåºŠçŽ æããç«çå æ°Žå
解æ³ã«ãã€ãŠåœ¢æããæ¹æ³ã«é¢ãããã®ã§ããã
æ¬çºæã¯äŸãã°éåžžã«çŽç²ãªææã§åœ¢æãããªã
ãã°ãªããªããšããã®å å°æ³¢ç®¡ã«é©çšããŠç¹ã«å¥œ
é©ãªãã®ã§ããã å å°æ³¢ç®¡ã¯ã1015HzçšåºŠã®ä¿¡å·ãäŒéãããã
ã«æãææãªåªäœã§ãã€ãŠãéåžžããã¯ãéæãª
è¯ãšããã®è¯ãå å²ããŠããŠãã®è¯ãããå±æç
ã®äœãéæãªå€è¢«ææãšãæããå ç¹ç¶ãããªã€
ãŠããã å éä¿¡æ¹åŒã«çšããããã¹ãäŒéåªäœã«ã¯å³ã
ãå åŠçèŠä»¶ã課ãããããããã«ãéåžžã®ã¬ã©
ã¹ç¹ç¶ãçšããããšã¯ãªãããªããªãã°ããã®ã
ããªã¬ã©ã¹ç¹ç¶ã§ã¯æ£ä¹±ãšäžçŽç©åžåãšã®åæ¹ã«
åºå ããæžè¡°ãéåžžã«å€§ããããã§ãããåŸã€
ãŠãéåžžã«é«ãçŽåºŠã®ã¬ã©ã¹ã§å ç¹ç¶ã圢æãã
ããã«ç¬ç¹ã®æ¹æ³ãéçºãããªããã°ãªããªãã€
ããéåžžã«ææèŠãããŠããã¬ã©ã¹èª¿è£œæ³ã¯ãé«
çŽåºŠã®èžæ°ã®æ°çžåå¿ãçšããç«çå æ°Žå解ãåº
ç€ãšãããã®ã§ãããäœæ倱å å°æ³¢ç®¡ã圢æãã
ããã®ãã®æ¹æ³ã¯ãç±³åœç¹èš±ç¬¬2272342å·ããã³
第2326059å·ã«èšèŒãããæ¹æ³ã«åºã¥ããŠããã
ç«çå æ°Žå解æ³ã¯ã段éå±æçïŒstepâindexïŒ
åããã³æŒžå€å±æçïŒgradedâindexïŒåã®åæ¹
ã®åäžã¢ãŒãå°æ³¢ç®¡ããã³å€ã¢ãŒãå°æ³¢ç®¡ã補é
ããããã«çšããããŠãããã¬ã©ã¹å å°æ³¢ç®¡ç¹ç¶
ã圢æããããã«ç«çå æ°Žå解æ³ãçšããçš®ã ã®
æ¹æ³ãç±³åœç¹èš±ç¬¬3737292å·ã第3823995å·ããã³
第3884550å·ã«æ瀺ãããŠããã å äŒéç³»ã«ãããå ã¬ã©ã¹å°æ³¢ç®¡ã®æçšæ§ã¯ã
çŽ700ã1100nmã®å šæ³¢é·ç¯å²ã«ããã€ãŠæ倱ã®é
åžžã«äœãäŒéãå®çŸããããã©ããã«ããã€ãŠã
ãããã®ããšãšã¯ãå ã®æ£ä¹±ããã³åžåã«åºå ã
ãæžè¡°ããçè«çã«éæå¯èœãªæå°ã¬ãã«ã«æ¥è¿
ããã¬ãã«ãŸã§æžå°ãããããšã«ãã€ãŠå®çŸãã
ãããæ£ä¹±æ倱ã®å°ãªããšã80ïŒ ãåºæã®ã¬ã©ã¹
æ£ä¹±ã«åºå ãããã®ãšã¿ãªããããå°æ³¢ç®¡ãåè¿°
ã®ç«çå æ°Žå解æ³ã«ãã€ãŠè£œé ãããŠããããã
ããªããããã®æ¹æ³ã§ã¯æ®çæ°Žåãååšãããã
ãã«ã700nmãš1100nmãšã®éã«ãããåžåæ倱
ãéåžžã«å€§ãããã¬ã©ã¹ã«ãããæ®çæ°Žåãšãã
ã®ã¯ãã¬ã©ã¹ãé«ãã¬ãã«ã®OHãH2ããã³H2O
ãå«æããŠããããšãæå³ãããæ®çæ°Žåã«ã€ã
ãŠã®ïŒã€ã®èª¬æãç±³åœç¹èš±ç¬¬3531271å·ã«ã¿ãã
ããæ®çæ°Žåã«åºå ããåèšæ³¢é·ç¯å²ã«ãããæ
倧æžè¡°ã¯çŽ950nmã§çãããææã«åºæã®æ£ä¹±ã®
ãããªèŠå ã«åºå ãã950nmã«ãããæžè¡°ã®æ®ã
ã®éšåã¯3dBïŒKmã«éãããäŸãã°ã800nmã«ã
ããŠ100dBïŒKmãããå°ããæžè¡°ãæããã¬ã©ã¹
å å°æ³¢ç®¡ã¯ããã®äžã«æ°Žåãååšããããšã«åºå
ããæžè¡°ã950nmã«ãããŠ100dBïŒKmããã倧ã
ããªããããå éä¿¡ç³»ã«ãããŠæçšã§ããããã«
ã¯ãå å°æ³¢ç®¡ã®æžè¡°ããã®äžãäŒæãããå ã®æ³¢
é·ã«ãããŠ10dBïŒKmãããå°ããããšã奜ãŸã
ãã700nmãš1100nmãšã®éã®å šç¯å²ã«ããã€ãŠ
ãã®ãããªäœãæžè¡°ãå®çŸããããã«ã¯ãã¬ã©ã¹
å°æ³¢ç®¡ã¯å®è³ªçã«æ°Žåãå«ãŸãªããã®ãšãªãããª
ããã°ãªããªããå³ã¡ç¹ç¶å ã«ãããæ®çæ°Žåã®
éã10ppm以äžã®ã¬ãã«ã«æžå°ããããããªã
ãã°ãªããªãã åºäœã¬ã©ã¹è¢«èŠã圢æããããã«ç«çå æ°Žå解
ã«ãã€ãŠåœ¢æããããããçŒçµãããããã
ïŒconsolidatedïŒåŸã«æ°Žåå«æéãå容å¯èœãªã¬
ãã«ãŸã§æžå°ããããããšã¯äžå¯èœã§ããããã
ãã®çŒçµå·¥çšåãŸãã¯ãã®å·¥çšæã«ããã®æ°Žåã
é€å»ããªããã°ãªããªããåŸæ¥ãç«çå æ°Žå解æ³
ã«ãã€ãŠè£œé ãããå å°æ³¢ç®¡ã«ãããæ°Žåå«æé
ãæžå°ããããããã«çš®ã ã®æ¹æ³ãçšããããŠã
ãããåŠçæéãé·ããšããè£ çœ®ã«åé¡ããããš
ããæ°Žåã®é€å»ãäžå®å šã§ããçã®é£ç¹ããã€
ãã ç«çå æ°Žå解æ³ã«ãã€ãŠè£œé ãããèåã·ãªã«
ã«ãããæ°Žåå«æéãæžå°ããããã®ã«éåžžã«æ
å¹ãªåŸæ¥æ¹æ³ãç±³åœç¹èš±ç¬¬3933454å·ã«é瀺ãã
ãŠããããã®ç¹èš±ã«ããã°ãç«çå æ°Žå解æ³ã«ã
ã€ãŠçæããããããã¬ããªãŒã ïŒsoot
preformïŒãçŒçµçšçã«æ¿å ¥ãããŠçŒçµãããã®
ã§ãããããã®å Žåããããã¬ããªãŒã ã¯ããç²
åãèåããããã€çš å¯ãªã¬ã©ã¹å±€ã圢æããã
ãã®ã«ååãªæéã®ããã çŒçµæž©åºŠç¯å²å ã®æž©åºŠ
ã«å ç±ãããããããšåæã«ããããã¬ããªãŒã
ã¯ãçãéã€ãŠæµããå®è³ªçã«ä¹Ÿç¥ããå¡©çŽ å«æ
ã¬ã¹ã®æµãã«ãããããããã®å¡©çŽ ããããã¬ã
ãªãŒã ã®åäœæã«ãã®ãããã¬ããªãŒã ã®ééã«
å ¥ã蟌ã¿ãã€æ°Žé žã€ãªã³ãå¡©çŽ ã€ãªã³ã§çœ®æãã
ãã®çµæãå®è³ªçã«æ°Žåãå«æããŠããªãã¬ã©ã¹
çæç©ãåŸããããããããªããããããã¬ããª
ãŒã ãšæ¥è§Šããåã«ãåèšå¡©çŽ å«æã¬ã¹ã¯çŒçµçš
çã®å£ãšåå¿ããŠããããã¬ããªãŒã ãæ±æãã
ããšã«ãªãããå¡©åéã®ãããªæ®çºæ§ã®æåãç
æããããšã«ãªããããåŸã€ãŠããã®ããã«ããŠ
åŸãããã¬ã©ã¹çæç©ã«ãããŠã¯ãæ°Žååžåã«åº
å ãã950nmã«ãããéå°æžè¡°ã¯éåžžã«å°ãã
ããå¯èŠã¹ãã¯ãã«å šäœã«ããããã®ã¬ã©ã¹çæ
ç©ã®å šäœã®æžè¡°ã¯ã也ç¥ã¬ã¹ã«ãã€ãŠéã°ããäž
çŽç©ã«åºå ããŠå¢å€§ããã åŸã€ãŠãæ¬çºæã®ïŒã€ã®ç®çã¯ãç«çå æ°Žå解
ã«ãã€ãŠæ²ç©ããããããã¬ããªãŒã ããããã®
çŒçµå·¥çšæã«æ®çæ°Žåãé€å»ããããã®å¹æçã§
äžã€çµæžçãªæ¹æ³ãæäŸããããšã§ãããæ¬çºæ
ã®ä»ã®ç®çã¯ãæ°Žåããã³æ±æç©ã®æ¿åºŠãéåžžã«
äœãå å°æ³¢ç®¡ã圢æããæ¹æ³ãæäŸããããšã§ã
ãã ç°¡åã«è¿°ã¹ããšãæ¬çºæã¯ç«çå æ°Žå解æ³ã«ã
ã€ãŠã¬ã©ã¹çæç©ã圢æããããã®æ¹è¯ãããæ¹
æ³ã«é¢ãããã®ã§ããããã®ç«çå æ°Žå解æ³ã¯åŸ
æ¥ãåºçºéšæäžã«ç«çå æ°Žå解ã«ãã€ãŠçæãã
ãã¬ã©ã¹ãããæ²ç©ããããŠãããã¬ããªãŒã ã
圢æããå·¥çšãšããã®ãããã¬ããªãŒã ãçŒçµã
ãããŠçš å¯ãªã¬ã©ã¹å±€ã圢æããå·¥çšãšãããªã
ãã®ã§ãããåèšçŒçµå·¥çšã¯åŸæ¥ãããç²åãè
åããããã€çŒçµããããã®ã«ååãªæéã®ãã
ã åäœæž©åºŠç¯å²å ã®æž©åºŠã«ãããã¬ããªãŒã ãã
ãããŠãç²åå¢çã®ãªãçš å¯ãªã¬ã©ã¹å±€ã圢æã
ãããšãããªããçŒçµæã«ãã¬ããªãŒã ã®ééã
ãã¬ã¹ãé€å»ããç®çã®ããã«ãããªãŠã ãé ž
çŽ ãã¢ã«ãŽã³ãããªã³ãŸãã¯ãããã®ã¬ã¹ã®æ··å
ç©ã®ãããªé°å²æ°ãããã¯æžå°ãããå§åã«ãã
ãã¬ããªãŒã ãããããŠãåŸãããã¬ã©ã¹çæç©
å ã®çš®ïŒã·ãŒãïŒã®æ°ãæžå°ããããããšãåŸæ¥
ããè¡ãããŠãããç«çå æ°Žå解ã«ãã€ãŠåœ¢æã
ããã¬ã©ã¹ããç²åãèåããããããšã«é¢é£ã
ãŠããã®å·¥çšã¯ãã³ã³ãœãªããŒã·ãšã³
ïŒconsolidationïŒãšãåŒã°ããã æ¬é¡ç¬¬ïŒçªç®
ã®çºæã¯ãå€å質ã¬ã©ã¹ãã¬ããªãŒã ãçŒçµçå
ã«é 眮ãã以åã«ãåºçºéšæãé€å»ããŠãã®ãã¬
ããªãŒã å ã«åã圢æããçŒçµçšçå ã«é 眮ãã
ãåèšãã¬ããªãŒã ã®åå ã«ã也ç¥å€ãå«ãã¬ã¹
æµãæµå ¥ããããŠããã®ã¬ã¹æµã®å°ãªããšãäžéš
ããåèšãã¬ããªãŒã ã®äžå¿ãããã®ãã¬ããªãŒ
ã ã®ééãéã€ãŠãã¬ããªãŒã ã®å€è¡šé¢ãŸã§å€æ¹
ãžæµåããããããšãç¹åŸŽãšããã æ¬é¡ç¬¬ïŒçªç®ã®çºæã«ããã°ã也ç¥å€ãå«ãã¬
ã¹æµããå€å質ã¬ã©ã¹ãã¬ããªãŒã ã®åšèŸºã§ã¯ãª
ããã¬ããªãŒã ã®äžå¿ã«åœ¢æãããåå ã«æµå ¥ã
ãããããäžèšä¹Ÿç¥å€ãå«ãã¬ã¹æµããã¬ããªãŒ
ã ãšæ¥è§Šãã以åã«çŒçµçšçã®çå£ã«æ¥è§Šããã
ãšãé²æ¢ããããããã€ãŠã¬ã¹æµãšçå£ãšã®åå¿
ã«ããæ±æç©è³ªã®çæãé»æ¢ããããããã€ãŠã
çŒçµåŸã®ãã¬ããªãŒã ããå ãã¢ã€ãã補åºãã
å Žåãè¯å¥œãªæžè¡°ç¹æ§ãåŸãããå¹æãããã ãŸãæ¬é¡ç¬¬ïŒçªç®ã®çºæã¯ãäžèšæ¬é¡ç¬¬ïŒçªç®
ã®çºæã®æ¹æ³ã«ãããŠãåèšã¬ã¹æµããå€å質ã¬
ã©ã¹ãã¬ããªãŒã ã®çŒçµæã«åå¿ãçããŠããŒã
ç©è³ªã圢æããååç©ãå«ãããšãç¹åŸŽãšããã ãã¬ããªãŒã ã®å æ¹éšåã¯å±æçãé«ãããã
ã®ããŒãã³ãïŒäŸãã°GeO2ïŒãå«ãã§ãããçŒçµ
å·¥çšã«ãããŠãã®ãã¬ããªãŒã ã®åã«Cl2ã®ãã
ãªä¹Ÿç¥å€ãæµå ¥ãããå Žåããã®Cl2ãšäžèšããŒ
ãã³ããšãåå¿ããŠããã®ããŒãã³ãã®äžéšãã
ã¬ããªãŒã ããé€å»ãããããšãèµ·ãããããæ¬
é¡ç¬¬ïŒçªç®ã®çºæã«ããã°ãçŒçµå·¥çšæã«ãã¬ã
ãªãŒã ã®åå ã«æµå ¥ãããã¬ã¹æµã®äžã«ãçŒçµå·¥
çšã«åå¿ãçããŠããŒãç©è³ªïŒäŸãã°GeO2ïŒã圢
æããååç©ïŒäŸãã°GeCl4ïŒãå«æãããã®
ã§ãäŸãã°GeCl4ãO2ãšåå¿ããŠGeO2ãšCl2ãšã
çæãããã®çæããGeO2ãCl2ã«ãã€ãŠé€å»ã
ããGeO2ã«ä»£ããããã¬ããªãŒã ã®å éšé åã«
æ²ç©ããããããã€ãŠãçŒçµããããã¬ããªãŒã
ã®çµæååžã也ç¥å·¥çšä»¥åã®çµæååžã«è¿ã¥ãã
ããšãå¯èœã«ãªãã 以äžå³é¢ãåç §ããŠæ¬çºæã®å®æœäŸã«ã€ã説æ
ããããå³é¢ã¯æ¬çºæãäŸç€ºçã«ãã€è±¡åŸŽçã«ç€º
ãã«ãããªããã®ã§ãã€ãŠãããã«ç€ºãããŠãã
èŠçŽ ã®å¯žæ³ãçžå¯Ÿçãªé åã瀺ãããšãäœãæå³
ãããã®ã§ã¯ãªãã説æã®äŸ¿å®äžãäœæ倱å å°æ³¢
管ã圢æããããšã«é¢ããŠæ¬çºæã説æãããã
æ¬çºæã¯ããã«éå®ããããã®ã§ãªãããšå¿è«ã§
ããã 第ïŒå³ãåç §ãããšãã¬ã©ã¹ããã®è¢«èŠïŒïŒ
ããç«çå æ°Žå解ããŒããŒïŒïŒã«ãã€ãŠããŠãŒã
ãŸãã¯ãããïŒïŒã®ãããªå®è³ªçã«åçç¶ã®åºçº
éšæã«é©çšããããçæã¬ã¹ãšé žçŽ ãŸãã¯ç©ºæ°
ããå³ç€ºãããŠããªãäŸçµŠæºããããŒããŒïŒïŒã«
äŸçµŠãããããã®æ··åç©ã¯ççŒãããŠç«çïŒïŒã
çãããã®ç«çãããŒããŒããæŸåºããããå æ°Ž
å解å¯èœãªæåã®èžæ°ãç«çïŒïŒå ã«å°å ¥ããã
ãããŠã¬ã¹èžæ°æ··åç©ãç«çå ã§å æ°Žå解ãããŠ
ã¬ã©ã¹ããã圢æãããã®ã¬ã©ã¹ããã¯ãåºçºéš
æïŒïŒã«åã€ãŠæ¹åã¥ããããæµãïŒïŒããªããŠ
ç«çïŒïŒãé¢ãããã¬ã©ã¹ããã®è¢«èŠã圢æãã
ç«çå æ°Žå解æ³ã¯åèšç±³åœç¹èš±ç¬¬3737292å·ã第
3823995å·ããã³ç¬¬3884550å·ã«ããã«è©³çŽ°ã«èšè¿°
ãããŠãããåºçºéšæïŒïŒã¯æ¯æéšæïŒïŒã«ãã€
ãŠæ¯æããããã€ãããåäžã«æ²ç©ãããããã
ã«ç¬¬ïŒå³ã«ãããŠããã®è¿åã«è¡šç€ºãããç¢å°ã«
ãã€ãŠç€ºãããŠããããã«å転éåãšå€æéåã
ãªãããããããããã®é·ãæµããäžãã现é·ã
ãªãã³ã»ããŒããŒã第ïŒå³ã«ç€ºãããŠããå®è³ªç
ãªåå¿ç¶ã®ããŒããŒã®ãããã«çšããŠããããã
ãããã°åºçºéšæïŒïŒã¯å転éåããªããããã
ãã ãã§ããããšãç解ãã¹ãã§ãããããã«ã
ãã®ãããªå転éåã ãã§ããããã«ããããã«
ã¯ãè€æ°ã®ããŒããŒïŒïŒãäžåããªããŠçšããŠã
ããã 段éå±æçïŒstepâindexïŒåå å°æ³¢ç®¡ã圢æ
ããããã«ã¯ã第ïŒå³ã«ç€ºãããŠããããã«ã第
ïŒã®è¢«èŠïŒïŒã®å€åŽåšå²é¢äžã«ã¬ã©ã¹ããã®ç¬¬ïŒ
ã®è¢«èŠïŒïŒãæ·»çããããåŸé å±æçïŒgradient
âindexïŒåç¹ç¶ã圢æããããã«ã¯ãåºçºéšæ
ã«ã¬ã©ã¹ããã®è€æ°ã®å±€ãæ·»çãããåå±€ã¯ç±³åœ
ç¹èš±ç¬¬3823995å·ã«æ瀺ãããŠããããã«æŒžæ¬¡äœ
ããªãå±æçãæããã å ¬ç¥ã®æ¹æ³ã«ããã°ã被èŠïŒïŒã®å±æçã¯ãç«
çïŒïŒå ã§çæãããããã®çµæãå€ããããšã«
ãã€ãŠè¢«èŠïŒïŒã®å±æçãããäœããªããããã
ã®ããšã¯ç«çäžã«å°å ¥ãããæ·»å ç©è³ªïŒä»¥äžããŒ
ãã³ãç©è³ªãšåŒã¶ïŒã®æ¿åºŠãŸãã¯çš®é¡ãå€ããã
ãšã«ãã€ãŠãããã¯ãã®ããŒãã³ãç©è³ªãçç¥ã
ãããšã«ãã€ãŠéæããããæ¯æéšæïŒïŒã¯è¢«èŠ
ïŒïŒã®åäžãªæ²ç©ãäžããããã«ãå床å転éå
ãšå€æéåãšããªãããããã第ïŒã®è¢«èŠïŒïŒãš
第ïŒã®è¢«èŠïŒïŒãšãå«ãè€åæ§é äœãå å°æ³¢ç®¡ã
ã¬ããªãŒã ïŒïŒãæ§æããã ã¬ã©ã¹ãããªãåºçºéšæïŒïŒã¯ããããããç
ã«ã¯é€å»ããããã®ã§ããããããã®åºçºéšæïŒ
ïŒã®ææã¯ã被èŠïŒïŒã®ææãšäž¡ç«ãããçµæãš
èšåŒµä¿æ°ãæããŠãããã®ã§ããããã°ãããé©
åœãªææãšããŠã¯ã被èŠïŒïŒã®ææãšé¡äŒŒããçµ
æãæããéåžžã®ã¬ã©ã¹ãçšãããããããã®çŽ
床ã¯é«ãããå¿ èŠã¯ãªããåºçºéšæã®ææã¯ãé
åžžã®ãŸãã¯å¹æçãªå äŒæã®ããã«äžé©åœãªãã®
ãšãªããªãçšåºŠã«éå°ãªäžçŽç©ãŸãã¯ææã¬ã¹ã®
ã¬ãã«ãæããéåžžã«è£œé ãããã¬ã©ã¹ã§ããã
ãããŸããåºçºéšæã¯ã°ã©ãã¢ã€ããäœèšåŒµã¬ã©
ã¹çã§åœ¢æãããŠãããã å å°æ³¢ç®¡ã補é ããå Žåã«ã¯ããã®å°æ³¢ç®¡ã®è¯
ãšå€è¢«ã¯ãæå°å æžè¡°ç¹æ§ãæããã¬ã©ã¹ã§è£œé
ãããã¹ãã§ãããä»»æã®å åŠè³ªåã¬ã©ã¹ã䜿çš
ããããããèåã·ãªã«ãç¹ã«é©ããã¬ã©ã¹ã§ã
ããæ§é äžããã³ä»ã®å®éçãªèŠ³ç¹ãããè¯ã¬ã©
ã¹ãšå€è¢«ã¬ã©ã¹ã¯åæ§ã®ç©ççç¹æ§ãæããããš
ãæãŸãããè¯ã¬ã©ã¹ã¯é©åãªåäœã®ããã«å€è¢«
ãããé«ãå±æçãæããŠããªããã°ãªããªãã
ãããã®è¯ã¬ã©ã¹ã¯ãå€è¢«ã«å¯ŸããŠçšããããã¬
ã©ã¹ãšåãçš®é¡ã®ã¬ã©ã¹ã§åœ¢æãããã€ããã®å±
æçãè¥å¹²å¢å€§ããããããã«å°éã®ä»ã®ç©è³ªã
æ·»å ïŒããŒãïŒãããããšãæãŸãããäŸãã°ã
å€è¢«ã¬ã©ã¹ãšããŠçŽç²ãªèåã¬ã©ã¹ãçšãããã
å Žåã«ã¯ãè¯ã¬ã©ã¹ã¯ããã®å±æçãå¢å€§ããã
ãã®ææãããŒããããèåã·ãªã«ã§åœ¢æããã
ãã ããŒãã³ãç©è³ªã®ã¿ãšããŠãããã¯äºãã«çµå
ããŠæºè¶³ã«çšãããããé©åœãªç©è³ªã¯ããããã
ãããããã®ç©è³ªãšããŠã¯ãé žåãã¿ã³ãé žåã¿
ã³ã¿ã«ãé žåãžã«ã³ã³ãé žåã¢ã«ãããŠã ãé žå
ã©ã³ã¿ã³ãé žåãªã³ãé žåã²ã«ãããŠã çããã
ãããããã«éå®ããããã®ã§ã¯ãªããå å°æ³¢ç®¡
ã¯ãåèšé žåç©ã®ãã¡ã®ïŒã€ãŸãã¯ãã以äžãã
è¯ã圢æãããããããäœãå±æçãæããïŒãŸ
ãã¯ãã以äžã®ç©è³ªã§å€è¢«ã圢æããããšã«ãã€
ãŠã補é ãããããäŸãã°ãçŽç²ãªé žåã²ã«ãã
ãŠã ã§åœ¢æãããè¯ããèåã·ãªã«ãšé žåã²ã«ã
ããŠã ãšãããªãå€è¢«å±€ã§å å²ãããã ç«çå æ°Žå解æ³ã«ããã°ãæ£ä¹±ããã³äžçŽç©åž
åã«åºå ããæ倱ã極ããŠå°ããã¬ã©ã¹ã圢æã
ããããšã«ãªãããã®æ¹æ³ã«ãã€ãŠè£œé ãããå
å°æ³¢ç®¡ã¯1060nmã«ãããå šäœã®æ倱ã1.1dBïŒKm
çšåºŠã«å°ãããã®ã§ãã€ããããããªãããå å°
波管ããã®ãããªé«ãå åŠå質ãæããã¬ã©ã¹ã§
圢æãããå Žåã§ããæ³¢é·ã¹ãã¯ãã«ã®ããé å
ã«ãããå æžè¡°ãããã®ãããªé åã«ãããŠå ã
äŒæãããããã«ãã®å°æ³¢ç®¡ã䜿çšã§ããªããã
çšåºŠã«å€§ãããªããããäŸãã°ãSiO281éé
ïŒ ãGeO216ééïŒ ããã³B2O33ééïŒ ãããªã
è¯ãšãSiO286ééïŒ ããã³B2O314ééïŒ ãããª
ãå€è¢«ãšãæããå å°æ³¢ç®¡ãç«çå æ°Žå解æ³ã«ã
ã€ãŠäœãããããããæ°Žåãé€å»ããããšã¯è¡ãª
ãããªãã€ããšããããã®å å°æ³¢ç®¡ã®æžè¡°æ²ç·ïŒ
ïŒã第ïŒå³ã«ç€ºãããŠããã700ã1100nmé åã«
ãããæžè¡°ã倧ããããŠãã®é åå ã®ã»ãšãã©ã®
æ³¢é·ãæããå ä¿¡å·ãäŒæããããããã«ãã®å°
波管ãçšããããšãã§ããªãããŠããåå ã¯æ°Žå
ã«ããã950nmã«ãããŠã¯ããã®æžè¡°ã¯çŽ
80dBïŒKmã§ãã€ãããã®ãããªã¬ã©ã¹è£œå å°æ³¢
管ã圢æããçš®ã ã®é žåç©ã¯ïŒç¹ã«SiO2ã¯ïŒæ°Ž
åã«å¯Ÿãã芪åæ§ã匷ããããããªããããã®ã
ããªã¬ã©ã¹è£œå å°æ³¢ç®¡ãå®å šã«åœ¢æãããåŸã«
ã¯ãããã®å åŽã®å äŒæéšåã«ã¯æ°Žåã¯è¿ã¥ããª
ãããããã®ã¬ã©ã¹ãæ°ŽåãåžåããåŸåãæã
ããšããããšã¯ãæ°Žåã®ãªãã¬ã©ã¹è£œå å°æ³¢ç®¡ã«
ãšã€ãŠã¯ãããã圢æãããåŸã«ã¯é»å®³èŠå ãšã¯
ãªããªãããªããªãã°ãå ãšãã«ã®ãŒã®ã»ãšãã©
ãè¯ã®äžããã³ãã®ãŸããã§äŒæãããå€è¡šé¢äž
ã«æ°ŽåãååšããŠããŠãããã®ããšã¯ãã®ãããª
ãšãã«ã®ãŒã®äŒæã«å¯ŸããŠã¯ç¡èŠãããçšåºŠã®åœ±
é¿ããåãŒããªãããã§ãããããããªãããç«
çå æ°Žå解ã«ãã€ãŠå å°æ³¢ç®¡ã圢æããå Žåã«
ã¯ããã®ç«çã«ãã€ãŠçæãããæ®çæ°Žåããç«
çå æ°Žå解ã«ãã€ãŠåœ¢æãããå°æ³¢ç®¡ã®éšåã®å š
äœã«ããã€ãŠçŸãããããŸããããã¯éåžžã«é¡è
ãªå€å質ãæãããã®ã§ããããçŒçµå·¥çšã«å ç«
ã€ãŠç©ºæ°äžã§åæ±ãããŠããããã ã«ãã®ããã
æ°Žåã容æã«åžåããŠããŸãã åºçºéšæã¯ããããã¬ããªãŒã ã®äžç«¯ã«ã¬ã¹èª
å°ç®¡ãåºå®ããããããã«ãã®ãã¬ããªãŒã ãã
é€å»ãããããã®ããšã¯ãã³ãã«ããã¬ããªãŒã
ããåŒåŒµããªãããã®ãã¬ããªãŒã ãåºçããã
ãã§éæããããããã¬ããªãŒã ïŒïŒã¯ç¬¬ïŒå³ã«
瀺ãããŠããããã«ç®¡ç¶ã®æ¯æäœïŒïŒããåãäž
ãããããïŒæ¬ã®ãã©ããã»ã¯ã€ã€ïŒãããã®ã
ã¡ã¯ã€ã€ïŒïŒã ããå³ç€ºãããŠããïŒãåïŒïŒã®
äž¡åŽã«ãããŠãã¬ããªãŒã ïŒïŒã貫éããŠçªåºã
ãŠãããã€ãããã®ã¯ã€ã€ã¯ãã©ã³ãžïŒïŒã®çŽäž
ã«ãããŠæ¯æäœïŒïŒã«åºçãããŠãããã¬ã¹èªå°
管ïŒïŒã®ç«¯éšã¯ç®¡ç¶ã®æ¯æäœïŒïŒããçªåºããŠã
ã¬ããªãŒã ïŒïŒã®é£æ¥ç«¯ã«çªå ¥ããŠããããã¬ã
ãªãŒã ã¯ãçŒçµçšçïŒïŒäžã«åŸã ã«æ¿å ¥ãããŠçŒ
çµããããããããã®å Žåããã¬ããªãŒã ã¯åè¿°
ã®ç±³åœç¹èš±ç¬¬3933454å·ã«èšèŒãããŠããæè¡ã§
ãããšããã®åŸé çŒçµã«éãããããã«ãã€ãŠã
ã¬ããªãŒã ã®åºéšå 端ãæåã«çŒçµãã¯ãããã
ã®çŒçµã¯ãã¬ããªãŒã äžãäžæ¹ã«é²è¡ãã管ç¶ã®
æ¯æäœïŒïŒã«é£æ¥ãããã®ãã¬ããªãŒã ã®ç«¯éšã«
å°éãããŸã§ç¶ç¶ããããã«ãªãããšã奜ãŸã
ãã æ¬çºæã«ããã°ãå å°æ³¢ç®¡ãã¬ããªãŒã ã¯ãçŒ
çµå·¥çšæã«é«çŽåºŠä¹Ÿç¥å€ã«ãããããããšã«ãã
也ç¥ãããã也ç¥å€ã®çŽåºŠã¯ããã®ä¹Ÿç¥å€ããã¬
ããªãŒã ã«æ¥è§Šããåã«çŒçµçšçã®èç«å£ã«æ¥è§Š
ããªãããã«ããããšã«ãã€ãŠç¶æãããã也ç¥
å€ã®çŽåºŠãç¶æããããã®å¥œãŸããæ¹æ³ã¯ãã®ä¹Ÿ
ç¥å€ãå«ãé°å²æ°ã®æµãããã¬ããªãŒã ã®äžå¿ã«
æµå ¥ããããå€å質ã®ãã¬ããªãŒã å£ãééãã
ãããããŠãã®ãã¬ããªãŒã ã®å€è¡šé¢ã«æµåºãã
ããããšãå«ãããã®çµæçããã¬ã¹ã¯ããªãŠ
ã ãé žçŽ ãã¢ã«ãŽã³ãããªã³ãŸãã¯ãããã®æ··å
ç©ã®ãããªã¬ã¹ã«ãã€ãŠåè¿°ããçŽ æããæŸéã
ãããåŸã€ãŠã也ç¥å€ã¯çãããã«ãããã¬ããª
ãŒã ã«äžçŽç©ãéã¶ããšã¯ã§ããªããåŸã€ãŠãã
ã®æ¹æ³ã«ããã°ãæ¬è³ªçã«æ°Žåããªãã950nmã«
ãããŠäœæ倱ã瀺ãããã€ä»ã®æ³¢é·ã«ãããŠãäœ
æ倱ã瀺ãå å°æ³¢ç®¡ç¹ç¶ãåŸãããã䜿çšããã
也ç¥å€ã®äŸãšããŠã¯ãCl2ãSiCl4ãGeCl4ã
BCl3ãHClãPOCl3ãPCl3ãTiCl4ããã³AlCl3ã
ãããèçŽ ããšãŠçŽ ã®ãããªä»ã®ããã²ã³ã®åå
ç©ãå¹æçã§ããã¯ãã§ããã也ç¥å·¥çšã«é¢ãã
ãããã«ãããŠã¯ãã©ã®ãããªä¹Ÿç¥å€ãçšããã
ã¯éèŠãªããšã§ã¯ãªããããããªããã也ç¥å€ã
éžæããã«åœã€ãŠã¯ãå±æçãç±èšåŒµä¿æ°çã®ã
ããªãã¬ããªãŒã ç¹æ§ãèæ ®ããªããã°ãªããª
ãã第ïŒå³ã«ç€ºãããŠããååŒã®ïŒã€ã®å®æœäŸã«
ãããŠã¯ã也ç¥å€ã¯ãã¬ã©ã¹ãšããããã³ãšæå°
éã®éã®ã¹ãã³ã¬ã¹ã¹ããŒã«ã®ã¿ãããªã系統ã«
ãã€ãŠãããã¬ããªãŒã ã®äžå¿ã«éããããã€ã
ã®ä¹Ÿç¥å€ã¯ãã¬ããªãŒã ã«æ¥è§Šããåã«å®è³ªçã«
æ±æãåããªãããã«ç¶æãããã çŒçµæž©åºŠã¯ã¬ã©ã¹ããã®çµæã«äŸåããŠããŸã
ããã·ãªã«å«æéã®å€ãããã®å Žåã¯1250ã1700
âã®ç¯å²ã§ãããããã¯æéã«ãäŸåãã1250â
ã§ã®çŒçµã®å Žåã«ã¯éåžžã«é·ãæéãèŠãããã·
ãªã«å«æéã®å€ãããã®å Žåã®å¥œãŸããçŒçµæž©åºŠ
ã¯1350âãš1450âãšã®éã§ãããä»ã®ã¬ã©ã¹ã¯ã
ããããäœã枩床ã§çŒçµãããããšãã§ããäŸã
ã°ãçŽç²ãªã²ã«ããã¢ã¯900âã§åäœããã ããäžåºŠç¬¬ïŒå³ãåç §ãããšãçïŒïŒã®åçŽå
å£ã¯ãããã®çžå¯Ÿæ·±ããå³ç€ºããããã®ããã倧
ããããšã瀺ãããã«ç ŽæãããŠããããã®å³ã«
ãããŠãæµé調æŽåšã¯åã§å²ãŸããæåã«ãã€
ãŠç€ºãããŠãããæµéèšã¯ç©åœ¢ã§å²ãŸããæå
ã§ç€ºãããŠãããé žçŽ äŸçµŠæºïŒïŒãšããªãŠã äŸçµŠ
æºïŒïŒã¯çïŒïŒã®åºéšã«ããããªãªãã€ã¹ïŒïŒã«
é£çµãããŠããã波圢ã®ç¢å°ïŒïŒã¯ãªãªãã€ã¹ã
ãã®ãã©ãã·ã³ã°ã¬ã¹ã®æµãã瀺ããŠãããããª
ãŠã äŸçµŠæºïŒïŒãšé žçŽ äŸçµŠæºïŒïŒããããã
SiCl4ãšGeCl4ã®å®¹åšã«é£çµãããŠããã®ã§ã管ïŒ
ïŒå ã«ã¯ãããªãŠã ãé žçŽ ãSiCl4ããã³GeCl4ã
ååšãããéå çãªããªãŠã ã管ïŒïŒã«ãã€ãŠç®¡
ïŒïŒã«çµåãããŠããã 第ïŒå³ã®é°å²æ°çŒçµç³»çµ±ã¯ãåäœçšçãšãã¬ã
ãªãŒã ã«é©åãªã¬ã¹ãšèžæ°ã®æ··åç©ãäžãããã
ã«çšãããããå€æ°ã®ç³»çµ±ãè¡šãããŠããã«ãã
ãªãããã©ãã·ã³ã°ã¬ã¹ã¯çïŒïŒã®é éšããåºéš
ã«æµåããããããããã©ãã·ã³ã°ã¬ã¹ãçïŒïŒ
ã®åºéšã«æµå ¥ããããããããã«ãªãããå³ç€ºã®
系統ã¯ãã¬ã¹ãèªç¶ã«çå ãäžæ¹ã«æµåããåŸå
ãããããã奜ãŸãããææã®ä¹Ÿç¥ã¬ã¹æ··åç©ã
äžããããã«ã¯ä»ã®å€ãã®æ§æãçšããããšãã§
ããã®ã§ãã€ãŠãæ¬çºæã¯ç¬¬ïŒå³ã«ç€ºãããæ§æ
ã«éå®ããããã®ã§ã¯ãªããææã®ä¹Ÿç¥ã¬ã¹æ··å
ç©ã管ïŒïŒã«ããããŠæçµçã«ã¯ãã¬ããªãŒã ïŒ
ïŒã«äžãããããã°ããã®ã§ãã€ãŠããã®ãããª
æ··åç©ãåŸãããã«ã©ã®ãããªæ段ãçšãããã¯
éèŠãªããšã§ã¯ãªãã ç¢å°ïŒïŒã§ç€ºãããŠããããã«ããã¬ããªãŒã
ïŒïŒã¯çïŒïŒå ã«äžæ¹ã«æ¿å ¥ããããæ¿å ¥é床ã¯
ãã¬ããªãŒã ã®å 端ããŸãæåã«çŒçµããããã
ããŠãã®çŒçµå·¥çšã管ç¶ã®æ¯æäœïŒïŒã«é£æ¥ãã
ãã¬ããªãŒã ã®ç«¯éšã«å°éãããŸã§ãã®ãã¬ããª
ãŒã ãäžæ¹ã«ç¶ç¶ããã®ã«ååãªã ãé ãããšã
奜ãŸãããæ倧ç枩床ã¯ãã·ãªã«å«æéã®å€ãã
ãã®å Žåã«ã¯1350âãš1450âãšã®éã§ããããšã
奜ãŸããããã¬ã©ã¹ããã®ç²åãèåããããã€
ãããã¬ããªãŒã ãçŒçµããããŠç²åå¢çã®ååš
ããªãçš å¯ãªã¬ã©ã¹äœãšãªãã®ã«ååãªãã®ã§ãª
ããã°ãªããªãã ãããã¬ããªãŒã ïŒïŒãçïŒïŒå ã«å ¥ããšã也
ç¥ã¬ã¹ã管ïŒïŒãéã€ãŠãã¬ããªãŒã ã®åïŒïŒã«
æµå ¥ãããããŠãã®ä¹Ÿç¥ã¬ã¹ã¯åïŒïŒããç¢å°ïŒ
ïŒã«ãã€ãŠç€ºãããŠããããã«ãã¬ããªãŒã ã®é
éã«æµå ¥ããããŠãããã®ééãéã€ãŠæµåã
ãããããã¬ããªãŒã ã®ååæºè¶³ããã也ç¥ãã
å¡©çŽ ã¬ã¹ããã³SiCl4ã®ãããªå ¬ç¥ã®ä¹Ÿç¥ã¬ã¹ã
çšããããšã«ãã€ãŠå®çŸããããããããªããã
å å°æ³¢ç®¡ç¹ç¶ãšãªãããã¹ããããã¬ããªãŒã ã®
å éšã¯ãã®å±æçãå¢å€§ããããããã®ããŒãã³
ããå«æããŠããã®ã§ãããŒãã³ãæ¿åºŠã®æãé«
ããã¬ããªãŒã åã«ãã®ãããªåŸæ¥ã®ä¹Ÿç¥å€ãé©
çšãããšããã®ããŒãã³ãããã¬ããªãŒã ããé€
å»ããããããããšã«ãªãããã®çµæãå å°æ³¢ç®¡
ã®äžå¿ã«ãããã¬ã©ã¹ã®å±æçãäœäžããããšã«
ãªãããã®ãããããŠåŸãããç¹ç¶ã¯å å°æ³¢ç®¡ãš
ããŠæ©èœããããç¹ã«å±æç挞å€åã®ç¹ç¶ã®å Žå
ã«ã¯ãããã®ããçš®ã®ç¹æ§ãæªåœ±é¿ãåããããš
ã«ãªããããåŸã€ãŠã也ç¥ã¬ã¹ã¯ããã¬ããªãŒã
å ã§åå¿ãããšãåè¿°ããé€å»äœçšã«ãã€ãŠæ¿åºŠ
ãäœäžããåŸåã®ããããŒãã³ãé žåç©ãçæã
ãæåãå«ãã§ããããšã奜ãŸããããã®ãããª
è£åæåã®æèŠéã¯ãããã¬ããªãŒã ã®äžå¿ã«ã
ããããŒãã³ãé žåç©ã®æ¿åºŠãå«ãçš®ã ã®èŠå ã«
äŸåããŠããŸãã也ç¥ã¬ã¹äžã«ååšããäžè¿°ã®ã
ããªè£åæåã®éãå€ããããšãäžç©ºã®ãã¬ããª
ãŒã ã®å è¡šé¢ã«ãããŒãã³ãé žåç©ã«å¯ãã ã¬ã©
ã¹ã®èãå±€ã圢æããããããšãèªãããããã
ã®ããšã¯ãåäœããããããçŽ æäžã®äžå¹³è¡¡ãªå¿
åã«åºå ããŠç Žå£ãçãããŠãããšã«ãªãããã
ããã«ãããšããã®ãããªçŽ æããç¹ç¶ãåŒãåº
ãããããšããŠããããã®äžå¿ã«ãããå±æç
ã¯ããã®ç¹ç¶ã®äžå¿ã«ãããããŒãã³ãé žåç©ã®
æ¿åºŠãé«ãããã«ãéåžžã«é«ããªããããåŸã€
ãŠãåç°ãªãå°æ³¢ç®¡çµæããšã«ã也ç¥ã¬ã¹äžã®è£
åæåã®éã¯æ±ºå®ãããªããã°ãªããªãããçµéš
çãªæ段ã«ãã決å®ã§æºè¶³ãããããšãèªããã
ããæªåŠçç¹ç¶ããåŒãåºãããç¹ç¶ã®å Žåã®
950nmã«ãããéå°æžè¡°ã¯éåžž50ã100dBïŒKmãŸ
ãã¯ãã以äžã§ããã第ïŒå³ã®æ²ç·ïŒïŒã¯æ¬çºæ
ã®æ¹æ³ã«ãã€ãŠè£œé ãããæãè¯å¥œãªç¹ç¶ã®ãã¡
ã®ïŒã€ã«ã€ããŠã®æžè¡°å¯Ÿæ³¢é·æ²ç·ã瀺ããŠããã
æ¬çºæã®æ¹æ³ã«ããåŠçã¯ãŸããçŒçµããããã
çŽ æã®æžè¡°ãã630ã800ã820ããã³1060nmã®æš
æºæž¬å®æ³¢é·ã®ããããã«ãããŠçŽ1dBïŒKmã ãæž
å°ããããããšã芳å¯ããããåŸæ¥æè¡ã«æ¯ããŠ
ã®æ¬çºæã®ãã®ãããªæ¹è¯ç¹ã¯ã第ïŒå³ã®æ²ç·ïŒ
ïŒããç±³åœç¹èš±ç¬¬3933454å·ã®æ瀺ã«åŸã€ãŠä¹Ÿç¥
ããããããã¬ããªãŒã ã§åœ¢æãããå°æ³¢ç®¡ç¹ç¶
ã®æ倱ç¹æ§ã瀺ãæ²ç·ïŒïŒãšæ¯èŒããããšã«ãã€
ãŠç解ããããã第ïŒå³ã®æ²ç·ïŒïŒã¯ãçŒçµçšç
å ã«ãããŠã也ç¥ã¬ã¹ããæ¬é¡çºæã®ããã«å€å
質ã¬ã©ã¹ãã¬ããªãŒã ã®åå ã«æµå ¥ãããã®ã§ã¯
ãªãããã¬ããªãŒã ã®åšèŸºã«æµããå Žåã®æžè¡°ç¹
æ§ã瀺ããã®ã§ããããã®å Žåã¯çå£ã«æ¥è§ŠããŠ
å¡©åéã®ãããªæ®çºæ§ååç©ãçæãããã®åå
ç©ããã¬ããªãŒã ã«æ¥è§ŠããŠãã®ãã¬ããªãŒã ã
æ±æãããããå¯èŠã¹ãã¯ãã«å šåã«äºã€ãŠæžè¡°
ãå¢å€§ãããŠããããšãæããã§ãããæ¬çºæã®
也ç¥å·¥çšã¯ãã¬ã©ã¹ã®å æ£ä¹±ç¹æ§ã軜æžãããã
ããããã¯ãããã¬ããªãŒã ããçŸåŸã«é€å»ãã
ããããæ®çºæ§ã®ååç©ã圢æããããšã«ãã€ãŠ
éå±äžçŽç©ãé€å»ããããšãæããã§ããããã
ããŠããããã¬ããªãŒã ã®å®è³ªçãªä¹Ÿç¥ãäžãã
ããšã«å ããŠãæ¬çºæã®æ¹æ³ã¯æ°Žåã«ãã圱é¿ã
åããªãæ³¢é·ã«ãããæžè¡°ããæžå°ããããã®ã§
ããã SiCl4ããã³GeCl4ã®éãéå°ã§ãããšãå€åã
ã¬ããªãŒã ãæ±æãããããšã«ãããããã¯çŽ æ
äžã«åžžã«ååšããäžçŽç©ã®é žåç¶æ ãå€æŽããã
ããšã«ãããç¹ç¶ã®å šäœã®æžè¡°ãæžå°ããããã
ãåŸåããããé žçŽ ã®éãéå°ã§ããå Žåã«ã¯
ïŒããªãŠã ãäžååã§ããå Žåã«ã¯ïŒãçŽ æãçš®
ïŒã·ãŒãïŒã®å€ããã®ãšãªããé žçŽ ãäžååã§ã
ããšãäžçŽç©ã®é žåç¶æ ãå€æŽãããŠãç¹ç¶ã®æž
è¡°ãå¢å€§ããã æ¬çºæã®æ¹æ³ã¯ãåºçŸ©ã«ãããŠã¯ãã¬ã¹ç¶ä¹Ÿç¥
å€ãããã¬ã©ã¹ã®ééãéãããã«æµåãããã
ãããšåæã«ããã¬ããªãŒã ãçŒçµãããããã€
ã€ããçã®å£ã«ãã®ä¹Ÿç¥å€ãæ¥è§Šããªãããã«ã
ãããšãå«ããã®ã§ããã第ïŒå³ã®å®æœäŸã«ãã
ãŠã¯ããã®ããšã¯ã也ç¥ã¬ã¹ããã¬ããªãŒã åã®
é éšã«æµå ¥ããããããŠãã®ä¹Ÿç¥ã¬ã¹ããçã®åº
éšã«äŸçµŠããããã©ãã·ã³ã°ã¬ã¹ã®éæµã§ãã€ãŠ
æŸéããããšã«ãã€ãŠéæãããããã©ãã·ã³ã°
ã¬ã¹ã¯çŒçµçšçã®é éšã«äŸçµŠãããŠãããããã®
å Žåã«ã¯ããã©ãã·ã³ã°ã¬ã¹ã¯ä¹Ÿç¥å€ãšåãæ¹å
ã«æµãããã也ç¥å€ãšãã©ãã·ã³ã°ã¬ã¹ãšã®äž¡æ¹
ãé€å»ããããã®æ段ãçã®åºéšã«èšããããã
æ¬çºæã®æ¹æ³ã®ä»ã®å®æœäŸã§ã¯ãçã®åºéšã«ä¹Ÿç¥
å€ã®å±€æµãäžããããã也ç¥å€ããããã¬ããªãŒ
ã ã«ééãããšããã®ãã¬ããªãŒã ãšçå£ãšã®é
ã«æµããã¬ã¹ã¯ãã®å£ã«æ¥è§Šããã¬ã¹ããã¬ããª
ãŒã ã«å ¥ãã®ãé²æ¢ããããã®ãããã¢ãŒãšããŠ
äœçšããããã®æåŸã«è¿°ã¹ãå®æœäŸã®å€åœ¢äŸã«ã
ããŠã¯ãåçŽå£ã®è¿åã«ãããŠçã®åºéšã«äžæŽ»æ§
ã¬ã¹ã®ãä¿è·æµããå°å ¥ããããã®ãä¿è·æµãã¯
çã®èç«æã«ãããäžçŽç©ããã®ãã¬ããªãŒã ã®
é®èœãå¢å€§ããããåŸåãããã 次ã®äŸã«èšèŒãããŠããç¹å®ã®å®æœäŸã«ã€ããŠ
æ¬çºæãããã«èª¬æããããå å°æ³¢ç®¡ã®è£œé ã«é¢
ãããããã®å®æœäŸã«ãããŠã¯ãçãããã«ã®å
åŸã¯çŽ8.26cmïŒïŒ1/4ã€ã³ãïŒã§ãããããã®é·
ãã¯çŽ127cmïŒ50ã€ã³ãïŒã§ããããã¹ãŠã®å®æœ
äŸã«ãããŠãããªãŠã 20ïŒminãšé žçŽ 500mlïŒ
minãããªããã©ãã·ã³ã°ã¬ã¹æ··åç©ã第ïŒå³ã«
瀺ãããŠããããã«çã®åºéšã«äŸçµŠãããã å®æœäŸ ïŒ çŽåŸçŽ0.6cmãé·ãçŽ50cmã®èåç³è±ãããªã
管ç¶ã®åºçºéšæããã³ãã«ã«åºçãããã液äœ
SiCl4ã液äœGeCl4ããã³BCl3ããããã第ïŒã第
ïŒããã³ç¬¬ïŒã®å®¹åšå ã§35âã47âããã³20âã«
ç¶æãããã也ç¥ããé žçŽ ã第ïŒã®å®¹åšäžã«æ¯å
2000c.c.æµéã§ããããŠç¬¬ïŒã®å®¹åšäžã«æ¯å200c.c.
ã®æµéã§ããããæµããããBCl3ã第ïŒã®å®¹åš
ããæ¯å60c.c.ã®æµéã§èšãåºããããé žçŽ å ã«æ
æãããèžæ°ã¯çµåããããããŠãã¬ã¹é žçŽ çã
ééããããããããã§ãã®èžæ°ãå æ°Žå解ãã
ãŠãGeO216ééïŒ ãB2O33ééïŒ ããã³SiO281
ééïŒ ã®çµæãæããç²åã®å®åžžæµã圢æããã
ãã®æµãã¯åºçºéšæã«åãããããããŠäžèšçµæ
ã®ç²åãããªããã被èŠãçŽåŸçŽ2.5cmãŸã§é©çš
ãããã次ã«ãSiO2 86ééïŒ ããã³B2O3 14é
éïŒ ãããªã第ïŒã®è¢«èŠãã液äœGeCl4ã«å¯Ÿãã
é žçŽ ã®æµããçµäºãããã€ç¬¬ïŒã®å®¹åšäžã®é žçŽ ã®
æµããæ¯å2000c.c.ã«ç¶æããªãã第ïŒã®å®¹åšãã
ã®BCl3ã®æµããæ¯å300c.c.ã«èª¿ç¯ããããšã«ãã€
ãŠã第ïŒã®ãã被èŠäžã«é©çšãããããã®å€è¢«ã
ãã¯çŽïŒcmã®å€åŸãåŸããããŸã§é©çšããããåº
çºéšæããããã¬ããªãŒã ããåŒåŒµãããéé
450ïœãçŽåŸïŒcmãé·ã50cmã®ãããã¬ããªãŒã
ãæ®ãããã第ïŒå³ã«ããã也ç¥ã¬ã¹ç®¡ïŒïŒãã
çŽ0.6cmã®çŽåŸãæãããã¬ããªãŒã åã«æ¿å ¥ã
ããããã®ãã¬ããªãŒã ã®äžç«¯ã管ç¶æ¯æäœã«å
ä»ããããã«ãã©ããã»ã¯ã€ã€ãçšããããã 也ç¥ã¬ã¹ãæ§æããã¬ã¹ããã³èžæ°ã¯æ¬¡ã®é床
ã§ãã¬ããªãŒã åã«æµå ¥ãããé žçŽ æ¯å30mlã
SiCl4èžæ°æ¯åïŒmlãGeCl4èžæ°æ¯å3.7mlãããª
ãŠã æ¯å1500mlããã®æ··åç©ã¯SiCl4ããã³GeCl4
ã25âã«ç¶æããã€ããªãŠã ãSiCl4äžã«æ¯åïŒ
mlã®æµéã§ããããŠé žçŽ ãGeCl4äžã«æ¯å30mlã®
æµéã§ããããæµåããããããã«ããªãŠã ãã
ã€ãã¹ç®¡ïŒïŒãéããŠæ¯å1.5ã®æµéã§æµåã
ãããããšã«ãã€ãŠåŸãããã25âã«ãããŠã¯ã
SiCl4ã®èžæ°å§ã¯çŽ240Torrã§ãããããããªãŠã
ãæ¯åçŽïŒmlã®SiCl4èžæ°ãæŸãäžãããããŠ
GeCl4ã®èžæ°å§ã¯çŽ85Torrã§ããããé žçŽ ãæ¯å
3.7mlã®GeCl4èžæ°ãæŸãäžããã 也ç¥ã¬ã¹æ··åç©ããã¬ããªãŒã åã«æµå ¥ããå Ž
åããã®ãã¬ããªãŒã ã¯æ¯åçŽ0.5cmã®é床ã§ç
å ã«äžéããããããæ倧ç枩床ã¯çŽ1380âã§ã
ãã ãã¬ããªãŒã ã¯çŽ90åã§å®å šã«çŒçµããããã
ã®çµæçæããçš å¯ãªã¬ã©ã¹äœã¯çããåãåºã
ããŠå·åŽãããããã®çµæåŸãããæ§é äœããã
ãã®äžå¿åãã€ã¶ããã€ããã®å€åŸãæžå¯žããã
ãããã«çŽ1800âã®æž©åºŠã§å»¶äŒžãããããã®å»¶äŒž
ã¯125ÎŒïœã®æçµå°æ³¢ç®¡çŽåŸã«éããè¯çŽåŸãçŽ
62ÎŒïœãšãªããŸã§ç¶ç¶ãããã630ã800ã820ã
900ããã³1060nmã®æšæºæ³¢é·ã«ãããå°æ³¢ç®¡æžè¡°
ã¯ãããã8.7ã3.4ã3.2ã2.7ããã³1.6dBïŒKmã§
ããã950nmã«ãããæ°Žåã«åºå ããéå°åžåã¯
çŽ17dBïŒKmã§ãããšæšå®ãããããã®å®æœäŸã
ãã³ç¬¬è¡šã«æããããå®æœäŸã®ãã¡ã®ãããã®
ã«ãããŠã¯ã950nmã«ãããæžè¡°ã¯820nmããã³
900nmã«ãããæžè¡°ã枬å®ããããšã«ãã€ãŠæšå®
ãããã950nmã«ãããæšå®æžè¡°ã¯æ¬¡ã®åŒã«ãã€
ãŠæ±ºå®ãããã 950ïŒ33ïŒïŒ¡900â820ïŒ1.0ïŒ ç¹ç¶ã®äžå¿ã«ãããå±æç茪éã«ã¯ã也ç¥å·¥çšæ
ã«ç¹ç¶ã®äžå¿ã«å°ãéå°ãªGeO2ã圢æãããã
ããã«ãå°ããã¹ãã€ã¯ãååšããŠããã å®æœäŸïŒã§çšããããç¹å®ã®ä¹Ÿç¥å€ã¯ã幟ã€ã
ã®ååŠåå¿ã®çºçã«ãã€ãŠå å°æ³¢ç®¡ã也ç¥ããäœ
çšãããã第äžã«ãSiCl4ãšGeCl4ã¯é žçŽ ãšåå¿ã
ãŠæ¬¡ã®åŒã«åŸã€ãŠå¡©çŽ ã圢æããã SiCl4ïŒO2âSiO2ïŒ2Cl2 GeCl4ïŒO2âGeO2ïŒ2Cl2 ãããã®åå¿ã§åœ¢æãããå¡©çŽ ã¯æ¬¡ã®åå¿ã«åŸ
ã€ãŠã¬ã©ã¹ããæ°Žå¡©åºãé€å»ããã ïŒãSiOHïŒCl2ãSiOSiãïŒ2HClïŒïŒïŒïŒO2 ããã§ãSiOHã¯ã·ãªã³ã³å çŽ ãã¬ã©ã¹ç¶²ã®ä»ã®
ïŒã€ã®éšåã«é£çµãããŠããããšãæå³ããã å®æœäŸïŒãïŒ å®æœäŸïŒãïŒã®å Žåã®ã¬ã¹æµéããã³å å°æ³¢ç®¡
æžè¡°ã第衚ã«æããããŠããããããã®å®æœäŸ
ã®ããããã¯ã挞å€å±æçåç¹ç¶ã圢æãããå®
æœäŸïŒããã³ïŒãé€ããå®æœäŸãšåãååŒã®å å°
波管ãçšããããããïŒã€ã®å®æœäŸã«ãããç¹ç¶
ã¯å®æœäŸïŒã®å°æ³¢ç®¡ãšåãå€è¢«ããã³è»žç·æ¹åçµ
æãæããŠãããããããªãããå®æœäŸïŒããã³
ïŒã«ãããŠã¯ãGeO2ã®éãç¹ç¶ã®è»žç·ãšå€è¢«ãš
ã®éã§åŸã ã«æžå°ããããŸããå®æœäŸïŒããã³ïŒ
ã¯ã也ç¥ã¬ã¹æ··åç©ãé€ãã°ãå®æœäŸïŒã«èšèŒã
ããã®ãšåããããã¬ããªãŒã çŒçµæ³ãçšããã
第衚ã®å®æœäŸ11ã¯æªåŠçç¹ç¶ã«é¢ãããã®ã§ã
ãã
ã çã補é ãããé«å åŠçŽåºŠçŽ æããç«çå æ°Žå
解æ³ã«ãã€ãŠåœ¢æããæ¹æ³ã«é¢ãããã®ã§ããã
æ¬çºæã¯äŸãã°éåžžã«çŽç²ãªææã§åœ¢æãããªã
ãã°ãªããªããšããã®å å°æ³¢ç®¡ã«é©çšããŠç¹ã«å¥œ
é©ãªãã®ã§ããã å å°æ³¢ç®¡ã¯ã1015HzçšåºŠã®ä¿¡å·ãäŒéãããã
ã«æãææãªåªäœã§ãã€ãŠãéåžžããã¯ãéæãª
è¯ãšããã®è¯ãå å²ããŠããŠãã®è¯ãããå±æç
ã®äœãéæãªå€è¢«ææãšãæããå ç¹ç¶ãããªã€
ãŠããã å éä¿¡æ¹åŒã«çšããããã¹ãäŒéåªäœã«ã¯å³ã
ãå åŠçèŠä»¶ã課ãããããããã«ãéåžžã®ã¬ã©
ã¹ç¹ç¶ãçšããããšã¯ãªãããªããªãã°ããã®ã
ããªã¬ã©ã¹ç¹ç¶ã§ã¯æ£ä¹±ãšäžçŽç©åžåãšã®åæ¹ã«
åºå ããæžè¡°ãéåžžã«å€§ããããã§ãããåŸã€
ãŠãéåžžã«é«ãçŽåºŠã®ã¬ã©ã¹ã§å ç¹ç¶ã圢æãã
ããã«ç¬ç¹ã®æ¹æ³ãéçºãããªããã°ãªããªãã€
ããéåžžã«ææèŠãããŠããã¬ã©ã¹èª¿è£œæ³ã¯ãé«
çŽåºŠã®èžæ°ã®æ°çžåå¿ãçšããç«çå æ°Žå解ãåº
ç€ãšãããã®ã§ãããäœæ倱å å°æ³¢ç®¡ã圢æãã
ããã®ãã®æ¹æ³ã¯ãç±³åœç¹èš±ç¬¬2272342å·ããã³
第2326059å·ã«èšèŒãããæ¹æ³ã«åºã¥ããŠããã
ç«çå æ°Žå解æ³ã¯ã段éå±æçïŒstepâindexïŒ
åããã³æŒžå€å±æçïŒgradedâindexïŒåã®åæ¹
ã®åäžã¢ãŒãå°æ³¢ç®¡ããã³å€ã¢ãŒãå°æ³¢ç®¡ã補é
ããããã«çšããããŠãããã¬ã©ã¹å å°æ³¢ç®¡ç¹ç¶
ã圢æããããã«ç«çå æ°Žå解æ³ãçšããçš®ã ã®
æ¹æ³ãç±³åœç¹èš±ç¬¬3737292å·ã第3823995å·ããã³
第3884550å·ã«æ瀺ãããŠããã å äŒéç³»ã«ãããå ã¬ã©ã¹å°æ³¢ç®¡ã®æçšæ§ã¯ã
çŽ700ã1100nmã®å šæ³¢é·ç¯å²ã«ããã€ãŠæ倱ã®é
åžžã«äœãäŒéãå®çŸããããã©ããã«ããã€ãŠã
ãããã®ããšãšã¯ãå ã®æ£ä¹±ããã³åžåã«åºå ã
ãæžè¡°ããçè«çã«éæå¯èœãªæå°ã¬ãã«ã«æ¥è¿
ããã¬ãã«ãŸã§æžå°ãããããšã«ãã€ãŠå®çŸãã
ãããæ£ä¹±æ倱ã®å°ãªããšã80ïŒ ãåºæã®ã¬ã©ã¹
æ£ä¹±ã«åºå ãããã®ãšã¿ãªããããå°æ³¢ç®¡ãåè¿°
ã®ç«çå æ°Žå解æ³ã«ãã€ãŠè£œé ãããŠããããã
ããªããããã®æ¹æ³ã§ã¯æ®çæ°Žåãååšãããã
ãã«ã700nmãš1100nmãšã®éã«ãããåžåæ倱
ãéåžžã«å€§ãããã¬ã©ã¹ã«ãããæ®çæ°Žåãšãã
ã®ã¯ãã¬ã©ã¹ãé«ãã¬ãã«ã®OHãH2ããã³H2O
ãå«æããŠããããšãæå³ãããæ®çæ°Žåã«ã€ã
ãŠã®ïŒã€ã®èª¬æãç±³åœç¹èš±ç¬¬3531271å·ã«ã¿ãã
ããæ®çæ°Žåã«åºå ããåèšæ³¢é·ç¯å²ã«ãããæ
倧æžè¡°ã¯çŽ950nmã§çãããææã«åºæã®æ£ä¹±ã®
ãããªèŠå ã«åºå ãã950nmã«ãããæžè¡°ã®æ®ã
ã®éšåã¯3dBïŒKmã«éãããäŸãã°ã800nmã«ã
ããŠ100dBïŒKmãããå°ããæžè¡°ãæããã¬ã©ã¹
å å°æ³¢ç®¡ã¯ããã®äžã«æ°Žåãååšããããšã«åºå
ããæžè¡°ã950nmã«ãããŠ100dBïŒKmããã倧ã
ããªããããå éä¿¡ç³»ã«ãããŠæçšã§ããããã«
ã¯ãå å°æ³¢ç®¡ã®æžè¡°ããã®äžãäŒæãããå ã®æ³¢
é·ã«ãããŠ10dBïŒKmãããå°ããããšã奜ãŸã
ãã700nmãš1100nmãšã®éã®å šç¯å²ã«ããã€ãŠ
ãã®ãããªäœãæžè¡°ãå®çŸããããã«ã¯ãã¬ã©ã¹
å°æ³¢ç®¡ã¯å®è³ªçã«æ°Žåãå«ãŸãªããã®ãšãªãããª
ããã°ãªããªããå³ã¡ç¹ç¶å ã«ãããæ®çæ°Žåã®
éã10ppm以äžã®ã¬ãã«ã«æžå°ããããããªã
ãã°ãªããªãã åºäœã¬ã©ã¹è¢«èŠã圢æããããã«ç«çå æ°Žå解
ã«ãã€ãŠåœ¢æããããããçŒçµãããããã
ïŒconsolidatedïŒåŸã«æ°Žåå«æéãå容å¯èœãªã¬
ãã«ãŸã§æžå°ããããããšã¯äžå¯èœã§ããããã
ãã®çŒçµå·¥çšåãŸãã¯ãã®å·¥çšæã«ããã®æ°Žåã
é€å»ããªããã°ãªããªããåŸæ¥ãç«çå æ°Žå解æ³
ã«ãã€ãŠè£œé ãããå å°æ³¢ç®¡ã«ãããæ°Žåå«æé
ãæžå°ããããããã«çš®ã ã®æ¹æ³ãçšããããŠã
ãããåŠçæéãé·ããšããè£ çœ®ã«åé¡ããããš
ããæ°Žåã®é€å»ãäžå®å šã§ããçã®é£ç¹ããã€
ãã ç«çå æ°Žå解æ³ã«ãã€ãŠè£œé ãããèåã·ãªã«
ã«ãããæ°Žåå«æéãæžå°ããããã®ã«éåžžã«æ
å¹ãªåŸæ¥æ¹æ³ãç±³åœç¹èš±ç¬¬3933454å·ã«é瀺ãã
ãŠããããã®ç¹èš±ã«ããã°ãç«çå æ°Žå解æ³ã«ã
ã€ãŠçæããããããã¬ããªãŒã ïŒsoot
preformïŒãçŒçµçšçã«æ¿å ¥ãããŠçŒçµãããã®
ã§ãããããã®å Žåããããã¬ããªãŒã ã¯ããç²
åãèåããããã€çš å¯ãªã¬ã©ã¹å±€ã圢æããã
ãã®ã«ååãªæéã®ããã çŒçµæž©åºŠç¯å²å ã®æž©åºŠ
ã«å ç±ãããããããšåæã«ããããã¬ããªãŒã
ã¯ãçãéã€ãŠæµããå®è³ªçã«ä¹Ÿç¥ããå¡©çŽ å«æ
ã¬ã¹ã®æµãã«ãããããããã®å¡©çŽ ããããã¬ã
ãªãŒã ã®åäœæã«ãã®ãããã¬ããªãŒã ã®ééã«
å ¥ã蟌ã¿ãã€æ°Žé žã€ãªã³ãå¡©çŽ ã€ãªã³ã§çœ®æãã
ãã®çµæãå®è³ªçã«æ°Žåãå«æããŠããªãã¬ã©ã¹
çæç©ãåŸããããããããªããããããã¬ããª
ãŒã ãšæ¥è§Šããåã«ãåèšå¡©çŽ å«æã¬ã¹ã¯çŒçµçš
çã®å£ãšåå¿ããŠããããã¬ããªãŒã ãæ±æãã
ããšã«ãªãããå¡©åéã®ãããªæ®çºæ§ã®æåãç
æããããšã«ãªããããåŸã€ãŠããã®ããã«ããŠ
åŸãããã¬ã©ã¹çæç©ã«ãããŠã¯ãæ°Žååžåã«åº
å ãã950nmã«ãããéå°æžè¡°ã¯éåžžã«å°ãã
ããå¯èŠã¹ãã¯ãã«å šäœã«ããããã®ã¬ã©ã¹çæ
ç©ã®å šäœã®æžè¡°ã¯ã也ç¥ã¬ã¹ã«ãã€ãŠéã°ããäž
çŽç©ã«åºå ããŠå¢å€§ããã åŸã€ãŠãæ¬çºæã®ïŒã€ã®ç®çã¯ãç«çå æ°Žå解
ã«ãã€ãŠæ²ç©ããããããã¬ããªãŒã ããããã®
çŒçµå·¥çšæã«æ®çæ°Žåãé€å»ããããã®å¹æçã§
äžã€çµæžçãªæ¹æ³ãæäŸããããšã§ãããæ¬çºæ
ã®ä»ã®ç®çã¯ãæ°Žåããã³æ±æç©ã®æ¿åºŠãéåžžã«
äœãå å°æ³¢ç®¡ã圢æããæ¹æ³ãæäŸããããšã§ã
ãã ç°¡åã«è¿°ã¹ããšãæ¬çºæã¯ç«çå æ°Žå解æ³ã«ã
ã€ãŠã¬ã©ã¹çæç©ã圢æããããã®æ¹è¯ãããæ¹
æ³ã«é¢ãããã®ã§ããããã®ç«çå æ°Žå解æ³ã¯åŸ
æ¥ãåºçºéšæäžã«ç«çå æ°Žå解ã«ãã€ãŠçæãã
ãã¬ã©ã¹ãããæ²ç©ããããŠãããã¬ããªãŒã ã
圢æããå·¥çšãšããã®ãããã¬ããªãŒã ãçŒçµã
ãããŠçš å¯ãªã¬ã©ã¹å±€ã圢æããå·¥çšãšãããªã
ãã®ã§ãããåèšçŒçµå·¥çšã¯åŸæ¥ãããç²åãè
åããããã€çŒçµããããã®ã«ååãªæéã®ãã
ã åäœæž©åºŠç¯å²å ã®æž©åºŠã«ãããã¬ããªãŒã ãã
ãããŠãç²åå¢çã®ãªãçš å¯ãªã¬ã©ã¹å±€ã圢æã
ãããšãããªããçŒçµæã«ãã¬ããªãŒã ã®ééã
ãã¬ã¹ãé€å»ããç®çã®ããã«ãããªãŠã ãé ž
çŽ ãã¢ã«ãŽã³ãããªã³ãŸãã¯ãããã®ã¬ã¹ã®æ··å
ç©ã®ãããªé°å²æ°ãããã¯æžå°ãããå§åã«ãã
ãã¬ããªãŒã ãããããŠãåŸãããã¬ã©ã¹çæç©
å ã®çš®ïŒã·ãŒãïŒã®æ°ãæžå°ããããããšãåŸæ¥
ããè¡ãããŠãããç«çå æ°Žå解ã«ãã€ãŠåœ¢æã
ããã¬ã©ã¹ããç²åãèåããããããšã«é¢é£ã
ãŠããã®å·¥çšã¯ãã³ã³ãœãªããŒã·ãšã³
ïŒconsolidationïŒãšãåŒã°ããã æ¬é¡ç¬¬ïŒçªç®
ã®çºæã¯ãå€å質ã¬ã©ã¹ãã¬ããªãŒã ãçŒçµçå
ã«é 眮ãã以åã«ãåºçºéšæãé€å»ããŠãã®ãã¬
ããªãŒã å ã«åã圢æããçŒçµçšçå ã«é 眮ãã
ãåèšãã¬ããªãŒã ã®åå ã«ã也ç¥å€ãå«ãã¬ã¹
æµãæµå ¥ããããŠããã®ã¬ã¹æµã®å°ãªããšãäžéš
ããåèšãã¬ããªãŒã ã®äžå¿ãããã®ãã¬ããªãŒ
ã ã®ééãéã€ãŠãã¬ããªãŒã ã®å€è¡šé¢ãŸã§å€æ¹
ãžæµåããããããšãç¹åŸŽãšããã æ¬é¡ç¬¬ïŒçªç®ã®çºæã«ããã°ã也ç¥å€ãå«ãã¬
ã¹æµããå€å質ã¬ã©ã¹ãã¬ããªãŒã ã®åšèŸºã§ã¯ãª
ããã¬ããªãŒã ã®äžå¿ã«åœ¢æãããåå ã«æµå ¥ã
ãããããäžèšä¹Ÿç¥å€ãå«ãã¬ã¹æµããã¬ããªãŒ
ã ãšæ¥è§Šãã以åã«çŒçµçšçã®çå£ã«æ¥è§Šããã
ãšãé²æ¢ããããããã€ãŠã¬ã¹æµãšçå£ãšã®åå¿
ã«ããæ±æç©è³ªã®çæãé»æ¢ããããããã€ãŠã
çŒçµåŸã®ãã¬ããªãŒã ããå ãã¢ã€ãã補åºãã
å Žåãè¯å¥œãªæžè¡°ç¹æ§ãåŸãããå¹æãããã ãŸãæ¬é¡ç¬¬ïŒçªç®ã®çºæã¯ãäžèšæ¬é¡ç¬¬ïŒçªç®
ã®çºæã®æ¹æ³ã«ãããŠãåèšã¬ã¹æµããå€å質ã¬
ã©ã¹ãã¬ããªãŒã ã®çŒçµæã«åå¿ãçããŠããŒã
ç©è³ªã圢æããååç©ãå«ãããšãç¹åŸŽãšããã ãã¬ããªãŒã ã®å æ¹éšåã¯å±æçãé«ãããã
ã®ããŒãã³ãïŒäŸãã°GeO2ïŒãå«ãã§ãããçŒçµ
å·¥çšã«ãããŠãã®ãã¬ããªãŒã ã®åã«Cl2ã®ãã
ãªä¹Ÿç¥å€ãæµå ¥ãããå Žåããã®Cl2ãšäžèšããŒ
ãã³ããšãåå¿ããŠããã®ããŒãã³ãã®äžéšãã
ã¬ããªãŒã ããé€å»ãããããšãèµ·ãããããæ¬
é¡ç¬¬ïŒçªç®ã®çºæã«ããã°ãçŒçµå·¥çšæã«ãã¬ã
ãªãŒã ã®åå ã«æµå ¥ãããã¬ã¹æµã®äžã«ãçŒçµå·¥
çšã«åå¿ãçããŠããŒãç©è³ªïŒäŸãã°GeO2ïŒã圢
æããååç©ïŒäŸãã°GeCl4ïŒãå«æãããã®
ã§ãäŸãã°GeCl4ãO2ãšåå¿ããŠGeO2ãšCl2ãšã
çæãããã®çæããGeO2ãCl2ã«ãã€ãŠé€å»ã
ããGeO2ã«ä»£ããããã¬ããªãŒã ã®å éšé åã«
æ²ç©ããããããã€ãŠãçŒçµããããã¬ããªãŒã
ã®çµæååžã也ç¥å·¥çšä»¥åã®çµæååžã«è¿ã¥ãã
ããšãå¯èœã«ãªãã 以äžå³é¢ãåç §ããŠæ¬çºæã®å®æœäŸã«ã€ã説æ
ããããå³é¢ã¯æ¬çºæãäŸç€ºçã«ãã€è±¡åŸŽçã«ç€º
ãã«ãããªããã®ã§ãã€ãŠãããã«ç€ºãããŠãã
èŠçŽ ã®å¯žæ³ãçžå¯Ÿçãªé åã瀺ãããšãäœãæå³
ãããã®ã§ã¯ãªãã説æã®äŸ¿å®äžãäœæ倱å å°æ³¢
管ã圢æããããšã«é¢ããŠæ¬çºæã説æãããã
æ¬çºæã¯ããã«éå®ããããã®ã§ãªãããšå¿è«ã§
ããã 第ïŒå³ãåç §ãããšãã¬ã©ã¹ããã®è¢«èŠïŒïŒ
ããç«çå æ°Žå解ããŒããŒïŒïŒã«ãã€ãŠããŠãŒã
ãŸãã¯ãããïŒïŒã®ãããªå®è³ªçã«åçç¶ã®åºçº
éšæã«é©çšããããçæã¬ã¹ãšé žçŽ ãŸãã¯ç©ºæ°
ããå³ç€ºãããŠããªãäŸçµŠæºããããŒããŒïŒïŒã«
äŸçµŠãããããã®æ··åç©ã¯ççŒãããŠç«çïŒïŒã
çãããã®ç«çãããŒããŒããæŸåºããããå æ°Ž
å解å¯èœãªæåã®èžæ°ãç«çïŒïŒå ã«å°å ¥ããã
ãããŠã¬ã¹èžæ°æ··åç©ãç«çå ã§å æ°Žå解ãããŠ
ã¬ã©ã¹ããã圢æãããã®ã¬ã©ã¹ããã¯ãåºçºéš
æïŒïŒã«åã€ãŠæ¹åã¥ããããæµãïŒïŒããªããŠ
ç«çïŒïŒãé¢ãããã¬ã©ã¹ããã®è¢«èŠã圢æãã
ç«çå æ°Žå解æ³ã¯åèšç±³åœç¹èš±ç¬¬3737292å·ã第
3823995å·ããã³ç¬¬3884550å·ã«ããã«è©³çŽ°ã«èšè¿°
ãããŠãããåºçºéšæïŒïŒã¯æ¯æéšæïŒïŒã«ãã€
ãŠæ¯æããããã€ãããåäžã«æ²ç©ãããããã
ã«ç¬¬ïŒå³ã«ãããŠããã®è¿åã«è¡šç€ºãããç¢å°ã«
ãã€ãŠç€ºãããŠããããã«å転éåãšå€æéåã
ãªãããããããããã®é·ãæµããäžãã现é·ã
ãªãã³ã»ããŒããŒã第ïŒå³ã«ç€ºãããŠããå®è³ªç
ãªåå¿ç¶ã®ããŒããŒã®ãããã«çšããŠããããã
ãããã°åºçºéšæïŒïŒã¯å転éåããªããããã
ãã ãã§ããããšãç解ãã¹ãã§ãããããã«ã
ãã®ãããªå転éåã ãã§ããããã«ããããã«
ã¯ãè€æ°ã®ããŒããŒïŒïŒãäžåããªããŠçšããŠã
ããã 段éå±æçïŒstepâindexïŒåå å°æ³¢ç®¡ã圢æ
ããããã«ã¯ã第ïŒå³ã«ç€ºãããŠããããã«ã第
ïŒã®è¢«èŠïŒïŒã®å€åŽåšå²é¢äžã«ã¬ã©ã¹ããã®ç¬¬ïŒ
ã®è¢«èŠïŒïŒãæ·»çããããåŸé å±æçïŒgradient
âindexïŒåç¹ç¶ã圢æããããã«ã¯ãåºçºéšæ
ã«ã¬ã©ã¹ããã®è€æ°ã®å±€ãæ·»çãããåå±€ã¯ç±³åœ
ç¹èš±ç¬¬3823995å·ã«æ瀺ãããŠããããã«æŒžæ¬¡äœ
ããªãå±æçãæããã å ¬ç¥ã®æ¹æ³ã«ããã°ã被èŠïŒïŒã®å±æçã¯ãç«
çïŒïŒå ã§çæãããããã®çµæãå€ããããšã«
ãã€ãŠè¢«èŠïŒïŒã®å±æçãããäœããªããããã
ã®ããšã¯ç«çäžã«å°å ¥ãããæ·»å ç©è³ªïŒä»¥äžããŒ
ãã³ãç©è³ªãšåŒã¶ïŒã®æ¿åºŠãŸãã¯çš®é¡ãå€ããã
ãšã«ãã€ãŠãããã¯ãã®ããŒãã³ãç©è³ªãçç¥ã
ãããšã«ãã€ãŠéæããããæ¯æéšæïŒïŒã¯è¢«èŠ
ïŒïŒã®åäžãªæ²ç©ãäžããããã«ãå床å転éå
ãšå€æéåãšããªãããããã第ïŒã®è¢«èŠïŒïŒãš
第ïŒã®è¢«èŠïŒïŒãšãå«ãè€åæ§é äœãå å°æ³¢ç®¡ã
ã¬ããªãŒã ïŒïŒãæ§æããã ã¬ã©ã¹ãããªãåºçºéšæïŒïŒã¯ããããããç
ã«ã¯é€å»ããããã®ã§ããããããã®åºçºéšæïŒ
ïŒã®ææã¯ã被èŠïŒïŒã®ææãšäž¡ç«ãããçµæãš
èšåŒµä¿æ°ãæããŠãããã®ã§ããããã°ãããé©
åœãªææãšããŠã¯ã被èŠïŒïŒã®ææãšé¡äŒŒããçµ
æãæããéåžžã®ã¬ã©ã¹ãçšãããããããã®çŽ
床ã¯é«ãããå¿ èŠã¯ãªããåºçºéšæã®ææã¯ãé
åžžã®ãŸãã¯å¹æçãªå äŒæã®ããã«äžé©åœãªãã®
ãšãªããªãçšåºŠã«éå°ãªäžçŽç©ãŸãã¯ææã¬ã¹ã®
ã¬ãã«ãæããéåžžã«è£œé ãããã¬ã©ã¹ã§ããã
ãããŸããåºçºéšæã¯ã°ã©ãã¢ã€ããäœèšåŒµã¬ã©
ã¹çã§åœ¢æãããŠãããã å å°æ³¢ç®¡ã補é ããå Žåã«ã¯ããã®å°æ³¢ç®¡ã®è¯
ãšå€è¢«ã¯ãæå°å æžè¡°ç¹æ§ãæããã¬ã©ã¹ã§è£œé
ãããã¹ãã§ãããä»»æã®å åŠè³ªåã¬ã©ã¹ã䜿çš
ããããããèåã·ãªã«ãç¹ã«é©ããã¬ã©ã¹ã§ã
ããæ§é äžããã³ä»ã®å®éçãªèŠ³ç¹ãããè¯ã¬ã©
ã¹ãšå€è¢«ã¬ã©ã¹ã¯åæ§ã®ç©ççç¹æ§ãæããããš
ãæãŸãããè¯ã¬ã©ã¹ã¯é©åãªåäœã®ããã«å€è¢«
ãããé«ãå±æçãæããŠããªããã°ãªããªãã
ãããã®è¯ã¬ã©ã¹ã¯ãå€è¢«ã«å¯ŸããŠçšããããã¬
ã©ã¹ãšåãçš®é¡ã®ã¬ã©ã¹ã§åœ¢æãããã€ããã®å±
æçãè¥å¹²å¢å€§ããããããã«å°éã®ä»ã®ç©è³ªã
æ·»å ïŒããŒãïŒãããããšãæãŸãããäŸãã°ã
å€è¢«ã¬ã©ã¹ãšããŠçŽç²ãªèåã¬ã©ã¹ãçšãããã
å Žåã«ã¯ãè¯ã¬ã©ã¹ã¯ããã®å±æçãå¢å€§ããã
ãã®ææãããŒããããèåã·ãªã«ã§åœ¢æããã
ãã ããŒãã³ãç©è³ªã®ã¿ãšããŠãããã¯äºãã«çµå
ããŠæºè¶³ã«çšãããããé©åœãªç©è³ªã¯ããããã
ãããããã®ç©è³ªãšããŠã¯ãé žåãã¿ã³ãé žåã¿
ã³ã¿ã«ãé žåãžã«ã³ã³ãé žåã¢ã«ãããŠã ãé žå
ã©ã³ã¿ã³ãé žåãªã³ãé žåã²ã«ãããŠã çããã
ãããããã«éå®ããããã®ã§ã¯ãªããå å°æ³¢ç®¡
ã¯ãåèšé žåç©ã®ãã¡ã®ïŒã€ãŸãã¯ãã以äžãã
è¯ã圢æãããããããäœãå±æçãæããïŒãŸ
ãã¯ãã以äžã®ç©è³ªã§å€è¢«ã圢æããããšã«ãã€
ãŠã補é ãããããäŸãã°ãçŽç²ãªé žåã²ã«ãã
ãŠã ã§åœ¢æãããè¯ããèåã·ãªã«ãšé žåã²ã«ã
ããŠã ãšãããªãå€è¢«å±€ã§å å²ãããã ç«çå æ°Žå解æ³ã«ããã°ãæ£ä¹±ããã³äžçŽç©åž
åã«åºå ããæ倱ã極ããŠå°ããã¬ã©ã¹ã圢æã
ããããšã«ãªãããã®æ¹æ³ã«ãã€ãŠè£œé ãããå
å°æ³¢ç®¡ã¯1060nmã«ãããå šäœã®æ倱ã1.1dBïŒKm
çšåºŠã«å°ãããã®ã§ãã€ããããããªãããå å°
波管ããã®ãããªé«ãå åŠå質ãæããã¬ã©ã¹ã§
圢æãããå Žåã§ããæ³¢é·ã¹ãã¯ãã«ã®ããé å
ã«ãããå æžè¡°ãããã®ãããªé åã«ãããŠå ã
äŒæãããããã«ãã®å°æ³¢ç®¡ã䜿çšã§ããªããã
çšåºŠã«å€§ãããªããããäŸãã°ãSiO281éé
ïŒ ãGeO216ééïŒ ããã³B2O33ééïŒ ãããªã
è¯ãšãSiO286ééïŒ ããã³B2O314ééïŒ ãããª
ãå€è¢«ãšãæããå å°æ³¢ç®¡ãç«çå æ°Žå解æ³ã«ã
ã€ãŠäœãããããããæ°Žåãé€å»ããããšã¯è¡ãª
ãããªãã€ããšããããã®å å°æ³¢ç®¡ã®æžè¡°æ²ç·ïŒ
ïŒã第ïŒå³ã«ç€ºãããŠããã700ã1100nmé åã«
ãããæžè¡°ã倧ããããŠãã®é åå ã®ã»ãšãã©ã®
æ³¢é·ãæããå ä¿¡å·ãäŒæããããããã«ãã®å°
波管ãçšããããšãã§ããªãããŠããåå ã¯æ°Žå
ã«ããã950nmã«ãããŠã¯ããã®æžè¡°ã¯çŽ
80dBïŒKmã§ãã€ãããã®ãããªã¬ã©ã¹è£œå å°æ³¢
管ã圢æããçš®ã ã®é žåç©ã¯ïŒç¹ã«SiO2ã¯ïŒæ°Ž
åã«å¯Ÿãã芪åæ§ã匷ããããããªããããã®ã
ããªã¬ã©ã¹è£œå å°æ³¢ç®¡ãå®å šã«åœ¢æãããåŸã«
ã¯ãããã®å åŽã®å äŒæéšåã«ã¯æ°Žåã¯è¿ã¥ããª
ãããããã®ã¬ã©ã¹ãæ°ŽåãåžåããåŸåãæã
ããšããããšã¯ãæ°Žåã®ãªãã¬ã©ã¹è£œå å°æ³¢ç®¡ã«
ãšã€ãŠã¯ãããã圢æãããåŸã«ã¯é»å®³èŠå ãšã¯
ãªããªãããªããªãã°ãå ãšãã«ã®ãŒã®ã»ãšãã©
ãè¯ã®äžããã³ãã®ãŸããã§äŒæãããå€è¡šé¢äž
ã«æ°ŽåãååšããŠããŠãããã®ããšã¯ãã®ãããª
ãšãã«ã®ãŒã®äŒæã«å¯ŸããŠã¯ç¡èŠãããçšåºŠã®åœ±
é¿ããåãŒããªãããã§ãããããããªãããç«
çå æ°Žå解ã«ãã€ãŠå å°æ³¢ç®¡ã圢æããå Žåã«
ã¯ããã®ç«çã«ãã€ãŠçæãããæ®çæ°Žåããç«
çå æ°Žå解ã«ãã€ãŠåœ¢æãããå°æ³¢ç®¡ã®éšåã®å š
äœã«ããã€ãŠçŸãããããŸããããã¯éåžžã«é¡è
ãªå€å質ãæãããã®ã§ããããçŒçµå·¥çšã«å ç«
ã€ãŠç©ºæ°äžã§åæ±ãããŠããããã ã«ãã®ããã
æ°Žåã容æã«åžåããŠããŸãã åºçºéšæã¯ããããã¬ããªãŒã ã®äžç«¯ã«ã¬ã¹èª
å°ç®¡ãåºå®ããããããã«ãã®ãã¬ããªãŒã ãã
é€å»ãããããã®ããšã¯ãã³ãã«ããã¬ããªãŒã
ããåŒåŒµããªãããã®ãã¬ããªãŒã ãåºçããã
ãã§éæããããããã¬ããªãŒã ïŒïŒã¯ç¬¬ïŒå³ã«
瀺ãããŠããããã«ç®¡ç¶ã®æ¯æäœïŒïŒããåãäž
ãããããïŒæ¬ã®ãã©ããã»ã¯ã€ã€ïŒãããã®ã
ã¡ã¯ã€ã€ïŒïŒã ããå³ç€ºãããŠããïŒãåïŒïŒã®
äž¡åŽã«ãããŠãã¬ããªãŒã ïŒïŒã貫éããŠçªåºã
ãŠãããã€ãããã®ã¯ã€ã€ã¯ãã©ã³ãžïŒïŒã®çŽäž
ã«ãããŠæ¯æäœïŒïŒã«åºçãããŠãããã¬ã¹èªå°
管ïŒïŒã®ç«¯éšã¯ç®¡ç¶ã®æ¯æäœïŒïŒããçªåºããŠã
ã¬ããªãŒã ïŒïŒã®é£æ¥ç«¯ã«çªå ¥ããŠããããã¬ã
ãªãŒã ã¯ãçŒçµçšçïŒïŒäžã«åŸã ã«æ¿å ¥ãããŠçŒ
çµããããããããã®å Žåããã¬ããªãŒã ã¯åè¿°
ã®ç±³åœç¹èš±ç¬¬3933454å·ã«èšèŒãããŠããæè¡ã§
ãããšããã®åŸé çŒçµã«éãããããã«ãã€ãŠã
ã¬ããªãŒã ã®åºéšå 端ãæåã«çŒçµãã¯ãããã
ã®çŒçµã¯ãã¬ããªãŒã äžãäžæ¹ã«é²è¡ãã管ç¶ã®
æ¯æäœïŒïŒã«é£æ¥ãããã®ãã¬ããªãŒã ã®ç«¯éšã«
å°éãããŸã§ç¶ç¶ããããã«ãªãããšã奜ãŸã
ãã æ¬çºæã«ããã°ãå å°æ³¢ç®¡ãã¬ããªãŒã ã¯ãçŒ
çµå·¥çšæã«é«çŽåºŠä¹Ÿç¥å€ã«ãããããããšã«ãã
也ç¥ãããã也ç¥å€ã®çŽåºŠã¯ããã®ä¹Ÿç¥å€ããã¬
ããªãŒã ã«æ¥è§Šããåã«çŒçµçšçã®èç«å£ã«æ¥è§Š
ããªãããã«ããããšã«ãã€ãŠç¶æãããã也ç¥
å€ã®çŽåºŠãç¶æããããã®å¥œãŸããæ¹æ³ã¯ãã®ä¹Ÿ
ç¥å€ãå«ãé°å²æ°ã®æµãããã¬ããªãŒã ã®äžå¿ã«
æµå ¥ããããå€å質ã®ãã¬ããªãŒã å£ãééãã
ãããããŠãã®ãã¬ããªãŒã ã®å€è¡šé¢ã«æµåºãã
ããããšãå«ãããã®çµæçããã¬ã¹ã¯ããªãŠ
ã ãé žçŽ ãã¢ã«ãŽã³ãããªã³ãŸãã¯ãããã®æ··å
ç©ã®ãããªã¬ã¹ã«ãã€ãŠåè¿°ããçŽ æããæŸéã
ãããåŸã€ãŠã也ç¥å€ã¯çãããã«ãããã¬ããª
ãŒã ã«äžçŽç©ãéã¶ããšã¯ã§ããªããåŸã€ãŠãã
ã®æ¹æ³ã«ããã°ãæ¬è³ªçã«æ°Žåããªãã950nmã«
ãããŠäœæ倱ã瀺ãããã€ä»ã®æ³¢é·ã«ãããŠãäœ
æ倱ã瀺ãå å°æ³¢ç®¡ç¹ç¶ãåŸãããã䜿çšããã
也ç¥å€ã®äŸãšããŠã¯ãCl2ãSiCl4ãGeCl4ã
BCl3ãHClãPOCl3ãPCl3ãTiCl4ããã³AlCl3ã
ãããèçŽ ããšãŠçŽ ã®ãããªä»ã®ããã²ã³ã®åå
ç©ãå¹æçã§ããã¯ãã§ããã也ç¥å·¥çšã«é¢ãã
ãããã«ãããŠã¯ãã©ã®ãããªä¹Ÿç¥å€ãçšããã
ã¯éèŠãªããšã§ã¯ãªããããããªããã也ç¥å€ã
éžæããã«åœã€ãŠã¯ãå±æçãç±èšåŒµä¿æ°çã®ã
ããªãã¬ããªãŒã ç¹æ§ãèæ ®ããªããã°ãªããª
ãã第ïŒå³ã«ç€ºãããŠããååŒã®ïŒã€ã®å®æœäŸã«
ãããŠã¯ã也ç¥å€ã¯ãã¬ã©ã¹ãšããããã³ãšæå°
éã®éã®ã¹ãã³ã¬ã¹ã¹ããŒã«ã®ã¿ãããªã系統ã«
ãã€ãŠãããã¬ããªãŒã ã®äžå¿ã«éããããã€ã
ã®ä¹Ÿç¥å€ã¯ãã¬ããªãŒã ã«æ¥è§Šããåã«å®è³ªçã«
æ±æãåããªãããã«ç¶æãããã çŒçµæž©åºŠã¯ã¬ã©ã¹ããã®çµæã«äŸåããŠããŸã
ããã·ãªã«å«æéã®å€ãããã®å Žåã¯1250ã1700
âã®ç¯å²ã§ãããããã¯æéã«ãäŸåãã1250â
ã§ã®çŒçµã®å Žåã«ã¯éåžžã«é·ãæéãèŠãããã·
ãªã«å«æéã®å€ãããã®å Žåã®å¥œãŸããçŒçµæž©åºŠ
ã¯1350âãš1450âãšã®éã§ãããä»ã®ã¬ã©ã¹ã¯ã
ããããäœã枩床ã§çŒçµãããããšãã§ããäŸã
ã°ãçŽç²ãªã²ã«ããã¢ã¯900âã§åäœããã ããäžåºŠç¬¬ïŒå³ãåç §ãããšãçïŒïŒã®åçŽå
å£ã¯ãããã®çžå¯Ÿæ·±ããå³ç€ºããããã®ããã倧
ããããšã瀺ãããã«ç ŽæãããŠããããã®å³ã«
ãããŠãæµé調æŽåšã¯åã§å²ãŸããæåã«ãã€
ãŠç€ºãããŠãããæµéèšã¯ç©åœ¢ã§å²ãŸããæå
ã§ç€ºãããŠãããé žçŽ äŸçµŠæºïŒïŒãšããªãŠã äŸçµŠ
æºïŒïŒã¯çïŒïŒã®åºéšã«ããããªãªãã€ã¹ïŒïŒã«
é£çµãããŠããã波圢ã®ç¢å°ïŒïŒã¯ãªãªãã€ã¹ã
ãã®ãã©ãã·ã³ã°ã¬ã¹ã®æµãã瀺ããŠãããããª
ãŠã äŸçµŠæºïŒïŒãšé žçŽ äŸçµŠæºïŒïŒããããã
SiCl4ãšGeCl4ã®å®¹åšã«é£çµãããŠããã®ã§ã管ïŒ
ïŒå ã«ã¯ãããªãŠã ãé žçŽ ãSiCl4ããã³GeCl4ã
ååšãããéå çãªããªãŠã ã管ïŒïŒã«ãã€ãŠç®¡
ïŒïŒã«çµåãããŠããã 第ïŒå³ã®é°å²æ°çŒçµç³»çµ±ã¯ãåäœçšçãšãã¬ã
ãªãŒã ã«é©åãªã¬ã¹ãšèžæ°ã®æ··åç©ãäžãããã
ã«çšãããããå€æ°ã®ç³»çµ±ãè¡šãããŠããã«ãã
ãªãããã©ãã·ã³ã°ã¬ã¹ã¯çïŒïŒã®é éšããåºéš
ã«æµåããããããããã©ãã·ã³ã°ã¬ã¹ãçïŒïŒ
ã®åºéšã«æµå ¥ããããããããã«ãªãããå³ç€ºã®
系統ã¯ãã¬ã¹ãèªç¶ã«çå ãäžæ¹ã«æµåããåŸå
ãããããã奜ãŸãããææã®ä¹Ÿç¥ã¬ã¹æ··åç©ã
äžããããã«ã¯ä»ã®å€ãã®æ§æãçšããããšãã§
ããã®ã§ãã€ãŠãæ¬çºæã¯ç¬¬ïŒå³ã«ç€ºãããæ§æ
ã«éå®ããããã®ã§ã¯ãªããææã®ä¹Ÿç¥ã¬ã¹æ··å
ç©ã管ïŒïŒã«ããããŠæçµçã«ã¯ãã¬ããªãŒã ïŒ
ïŒã«äžãããããã°ããã®ã§ãã€ãŠããã®ãããª
æ··åç©ãåŸãããã«ã©ã®ãããªæ段ãçšãããã¯
éèŠãªããšã§ã¯ãªãã ç¢å°ïŒïŒã§ç€ºãããŠããããã«ããã¬ããªãŒã
ïŒïŒã¯çïŒïŒå ã«äžæ¹ã«æ¿å ¥ããããæ¿å ¥é床ã¯
ãã¬ããªãŒã ã®å 端ããŸãæåã«çŒçµããããã
ããŠãã®çŒçµå·¥çšã管ç¶ã®æ¯æäœïŒïŒã«é£æ¥ãã
ãã¬ããªãŒã ã®ç«¯éšã«å°éãããŸã§ãã®ãã¬ããª
ãŒã ãäžæ¹ã«ç¶ç¶ããã®ã«ååãªã ãé ãããšã
奜ãŸãããæ倧ç枩床ã¯ãã·ãªã«å«æéã®å€ãã
ãã®å Žåã«ã¯1350âãš1450âãšã®éã§ããããšã
奜ãŸããããã¬ã©ã¹ããã®ç²åãèåããããã€
ãããã¬ããªãŒã ãçŒçµããããŠç²åå¢çã®ååš
ããªãçš å¯ãªã¬ã©ã¹äœãšãªãã®ã«ååãªãã®ã§ãª
ããã°ãªããªãã ãããã¬ããªãŒã ïŒïŒãçïŒïŒå ã«å ¥ããšã也
ç¥ã¬ã¹ã管ïŒïŒãéã€ãŠãã¬ããªãŒã ã®åïŒïŒã«
æµå ¥ãããããŠãã®ä¹Ÿç¥ã¬ã¹ã¯åïŒïŒããç¢å°ïŒ
ïŒã«ãã€ãŠç€ºãããŠããããã«ãã¬ããªãŒã ã®é
éã«æµå ¥ããããŠãããã®ééãéã€ãŠæµåã
ãããããã¬ããªãŒã ã®ååæºè¶³ããã也ç¥ãã
å¡©çŽ ã¬ã¹ããã³SiCl4ã®ãããªå ¬ç¥ã®ä¹Ÿç¥ã¬ã¹ã
çšããããšã«ãã€ãŠå®çŸããããããããªããã
å å°æ³¢ç®¡ç¹ç¶ãšãªãããã¹ããããã¬ããªãŒã ã®
å éšã¯ãã®å±æçãå¢å€§ããããããã®ããŒãã³
ããå«æããŠããã®ã§ãããŒãã³ãæ¿åºŠã®æãé«
ããã¬ããªãŒã åã«ãã®ãããªåŸæ¥ã®ä¹Ÿç¥å€ãé©
çšãããšããã®ããŒãã³ãããã¬ããªãŒã ããé€
å»ããããããããšã«ãªãããã®çµæãå å°æ³¢ç®¡
ã®äžå¿ã«ãããã¬ã©ã¹ã®å±æçãäœäžããããšã«
ãªãããã®ãããããŠåŸãããç¹ç¶ã¯å å°æ³¢ç®¡ãš
ããŠæ©èœããããç¹ã«å±æç挞å€åã®ç¹ç¶ã®å Žå
ã«ã¯ãããã®ããçš®ã®ç¹æ§ãæªåœ±é¿ãåããããš
ã«ãªããããåŸã€ãŠã也ç¥ã¬ã¹ã¯ããã¬ããªãŒã
å ã§åå¿ãããšãåè¿°ããé€å»äœçšã«ãã€ãŠæ¿åºŠ
ãäœäžããåŸåã®ããããŒãã³ãé žåç©ãçæã
ãæåãå«ãã§ããããšã奜ãŸããããã®ãããª
è£åæåã®æèŠéã¯ãããã¬ããªãŒã ã®äžå¿ã«ã
ããããŒãã³ãé žåç©ã®æ¿åºŠãå«ãçš®ã ã®èŠå ã«
äŸåããŠããŸãã也ç¥ã¬ã¹äžã«ååšããäžè¿°ã®ã
ããªè£åæåã®éãå€ããããšãäžç©ºã®ãã¬ããª
ãŒã ã®å è¡šé¢ã«ãããŒãã³ãé žåç©ã«å¯ãã ã¬ã©
ã¹ã®èãå±€ã圢æããããããšãèªãããããã
ã®ããšã¯ãåäœããããããçŽ æäžã®äžå¹³è¡¡ãªå¿
åã«åºå ããŠç Žå£ãçãããŠãããšã«ãªãããã
ããã«ãããšããã®ãããªçŽ æããç¹ç¶ãåŒãåº
ãããããšããŠããããã®äžå¿ã«ãããå±æç
ã¯ããã®ç¹ç¶ã®äžå¿ã«ãããããŒãã³ãé žåç©ã®
æ¿åºŠãé«ãããã«ãéåžžã«é«ããªããããåŸã€
ãŠãåç°ãªãå°æ³¢ç®¡çµæããšã«ã也ç¥ã¬ã¹äžã®è£
åæåã®éã¯æ±ºå®ãããªããã°ãªããªãããçµéš
çãªæ段ã«ãã決å®ã§æºè¶³ãããããšãèªããã
ããæªåŠçç¹ç¶ããåŒãåºãããç¹ç¶ã®å Žåã®
950nmã«ãããéå°æžè¡°ã¯éåžž50ã100dBïŒKmãŸ
ãã¯ãã以äžã§ããã第ïŒå³ã®æ²ç·ïŒïŒã¯æ¬çºæ
ã®æ¹æ³ã«ãã€ãŠè£œé ãããæãè¯å¥œãªç¹ç¶ã®ãã¡
ã®ïŒã€ã«ã€ããŠã®æžè¡°å¯Ÿæ³¢é·æ²ç·ã瀺ããŠããã
æ¬çºæã®æ¹æ³ã«ããåŠçã¯ãŸããçŒçµããããã
çŽ æã®æžè¡°ãã630ã800ã820ããã³1060nmã®æš
æºæž¬å®æ³¢é·ã®ããããã«ãããŠçŽ1dBïŒKmã ãæž
å°ããããããšã芳å¯ããããåŸæ¥æè¡ã«æ¯ããŠ
ã®æ¬çºæã®ãã®ãããªæ¹è¯ç¹ã¯ã第ïŒå³ã®æ²ç·ïŒ
ïŒããç±³åœç¹èš±ç¬¬3933454å·ã®æ瀺ã«åŸã€ãŠä¹Ÿç¥
ããããããã¬ããªãŒã ã§åœ¢æãããå°æ³¢ç®¡ç¹ç¶
ã®æ倱ç¹æ§ã瀺ãæ²ç·ïŒïŒãšæ¯èŒããããšã«ãã€
ãŠç解ããããã第ïŒå³ã®æ²ç·ïŒïŒã¯ãçŒçµçšç
å ã«ãããŠã也ç¥ã¬ã¹ããæ¬é¡çºæã®ããã«å€å
質ã¬ã©ã¹ãã¬ããªãŒã ã®åå ã«æµå ¥ãããã®ã§ã¯
ãªãããã¬ããªãŒã ã®åšèŸºã«æµããå Žåã®æžè¡°ç¹
æ§ã瀺ããã®ã§ããããã®å Žåã¯çå£ã«æ¥è§ŠããŠ
å¡©åéã®ãããªæ®çºæ§ååç©ãçæãããã®åå
ç©ããã¬ããªãŒã ã«æ¥è§ŠããŠãã®ãã¬ããªãŒã ã
æ±æãããããå¯èŠã¹ãã¯ãã«å šåã«äºã€ãŠæžè¡°
ãå¢å€§ãããŠããããšãæããã§ãããæ¬çºæã®
也ç¥å·¥çšã¯ãã¬ã©ã¹ã®å æ£ä¹±ç¹æ§ã軜æžãããã
ããããã¯ãããã¬ããªãŒã ããçŸåŸã«é€å»ãã
ããããæ®çºæ§ã®ååç©ã圢æããããšã«ãã€ãŠ
éå±äžçŽç©ãé€å»ããããšãæããã§ããããã
ããŠããããã¬ããªãŒã ã®å®è³ªçãªä¹Ÿç¥ãäžãã
ããšã«å ããŠãæ¬çºæã®æ¹æ³ã¯æ°Žåã«ãã圱é¿ã
åããªãæ³¢é·ã«ãããæžè¡°ããæžå°ããããã®ã§
ããã SiCl4ããã³GeCl4ã®éãéå°ã§ãããšãå€åã
ã¬ããªãŒã ãæ±æãããããšã«ãããããã¯çŽ æ
äžã«åžžã«ååšããäžçŽç©ã®é žåç¶æ ãå€æŽããã
ããšã«ãããç¹ç¶ã®å šäœã®æžè¡°ãæžå°ããããã
ãåŸåããããé žçŽ ã®éãéå°ã§ããå Žåã«ã¯
ïŒããªãŠã ãäžååã§ããå Žåã«ã¯ïŒãçŽ æãçš®
ïŒã·ãŒãïŒã®å€ããã®ãšãªããé žçŽ ãäžååã§ã
ããšãäžçŽç©ã®é žåç¶æ ãå€æŽãããŠãç¹ç¶ã®æž
è¡°ãå¢å€§ããã æ¬çºæã®æ¹æ³ã¯ãåºçŸ©ã«ãããŠã¯ãã¬ã¹ç¶ä¹Ÿç¥
å€ãããã¬ã©ã¹ã®ééãéãããã«æµåãããã
ãããšåæã«ããã¬ããªãŒã ãçŒçµãããããã€
ã€ããçã®å£ã«ãã®ä¹Ÿç¥å€ãæ¥è§Šããªãããã«ã
ãããšãå«ããã®ã§ããã第ïŒå³ã®å®æœäŸã«ãã
ãŠã¯ããã®ããšã¯ã也ç¥ã¬ã¹ããã¬ããªãŒã åã®
é éšã«æµå ¥ããããããŠãã®ä¹Ÿç¥ã¬ã¹ããçã®åº
éšã«äŸçµŠããããã©ãã·ã³ã°ã¬ã¹ã®éæµã§ãã€ãŠ
æŸéããããšã«ãã€ãŠéæãããããã©ãã·ã³ã°
ã¬ã¹ã¯çŒçµçšçã®é éšã«äŸçµŠãããŠãããããã®
å Žåã«ã¯ããã©ãã·ã³ã°ã¬ã¹ã¯ä¹Ÿç¥å€ãšåãæ¹å
ã«æµãããã也ç¥å€ãšãã©ãã·ã³ã°ã¬ã¹ãšã®äž¡æ¹
ãé€å»ããããã®æ段ãçã®åºéšã«èšããããã
æ¬çºæã®æ¹æ³ã®ä»ã®å®æœäŸã§ã¯ãçã®åºéšã«ä¹Ÿç¥
å€ã®å±€æµãäžããããã也ç¥å€ããããã¬ããªãŒ
ã ã«ééãããšããã®ãã¬ããªãŒã ãšçå£ãšã®é
ã«æµããã¬ã¹ã¯ãã®å£ã«æ¥è§Šããã¬ã¹ããã¬ããª
ãŒã ã«å ¥ãã®ãé²æ¢ããããã®ãããã¢ãŒãšããŠ
äœçšããããã®æåŸã«è¿°ã¹ãå®æœäŸã®å€åœ¢äŸã«ã
ããŠã¯ãåçŽå£ã®è¿åã«ãããŠçã®åºéšã«äžæŽ»æ§
ã¬ã¹ã®ãä¿è·æµããå°å ¥ããããã®ãä¿è·æµãã¯
çã®èç«æã«ãããäžçŽç©ããã®ãã¬ããªãŒã ã®
é®èœãå¢å€§ããããåŸåãããã 次ã®äŸã«èšèŒãããŠããç¹å®ã®å®æœäŸã«ã€ããŠ
æ¬çºæãããã«èª¬æããããå å°æ³¢ç®¡ã®è£œé ã«é¢
ãããããã®å®æœäŸã«ãããŠã¯ãçãããã«ã®å
åŸã¯çŽ8.26cmïŒïŒ1/4ã€ã³ãïŒã§ãããããã®é·
ãã¯çŽ127cmïŒ50ã€ã³ãïŒã§ããããã¹ãŠã®å®æœ
äŸã«ãããŠãããªãŠã 20ïŒminãšé žçŽ 500mlïŒ
minãããªããã©ãã·ã³ã°ã¬ã¹æ··åç©ã第ïŒå³ã«
瀺ãããŠããããã«çã®åºéšã«äŸçµŠãããã å®æœäŸ ïŒ çŽåŸçŽ0.6cmãé·ãçŽ50cmã®èåç³è±ãããªã
管ç¶ã®åºçºéšæããã³ãã«ã«åºçãããã液äœ
SiCl4ã液äœGeCl4ããã³BCl3ããããã第ïŒã第
ïŒããã³ç¬¬ïŒã®å®¹åšå ã§35âã47âããã³20âã«
ç¶æãããã也ç¥ããé žçŽ ã第ïŒã®å®¹åšäžã«æ¯å
2000c.c.æµéã§ããããŠç¬¬ïŒã®å®¹åšäžã«æ¯å200c.c.
ã®æµéã§ããããæµããããBCl3ã第ïŒã®å®¹åš
ããæ¯å60c.c.ã®æµéã§èšãåºããããé žçŽ å ã«æ
æãããèžæ°ã¯çµåããããããŠãã¬ã¹é žçŽ çã
ééããããããããã§ãã®èžæ°ãå æ°Žå解ãã
ãŠãGeO216ééïŒ ãB2O33ééïŒ ããã³SiO281
ééïŒ ã®çµæãæããç²åã®å®åžžæµã圢æããã
ãã®æµãã¯åºçºéšæã«åãããããããŠäžèšçµæ
ã®ç²åãããªããã被èŠãçŽåŸçŽ2.5cmãŸã§é©çš
ãããã次ã«ãSiO2 86ééïŒ ããã³B2O3 14é
éïŒ ãããªã第ïŒã®è¢«èŠãã液äœGeCl4ã«å¯Ÿãã
é žçŽ ã®æµããçµäºãããã€ç¬¬ïŒã®å®¹åšäžã®é žçŽ ã®
æµããæ¯å2000c.c.ã«ç¶æããªãã第ïŒã®å®¹åšãã
ã®BCl3ã®æµããæ¯å300c.c.ã«èª¿ç¯ããããšã«ãã€
ãŠã第ïŒã®ãã被èŠäžã«é©çšãããããã®å€è¢«ã
ãã¯çŽïŒcmã®å€åŸãåŸããããŸã§é©çšããããåº
çºéšæããããã¬ããªãŒã ããåŒåŒµãããéé
450ïœãçŽåŸïŒcmãé·ã50cmã®ãããã¬ããªãŒã
ãæ®ãããã第ïŒå³ã«ããã也ç¥ã¬ã¹ç®¡ïŒïŒãã
çŽ0.6cmã®çŽåŸãæãããã¬ããªãŒã åã«æ¿å ¥ã
ããããã®ãã¬ããªãŒã ã®äžç«¯ã管ç¶æ¯æäœã«å
ä»ããããã«ãã©ããã»ã¯ã€ã€ãçšããããã 也ç¥ã¬ã¹ãæ§æããã¬ã¹ããã³èžæ°ã¯æ¬¡ã®é床
ã§ãã¬ããªãŒã åã«æµå ¥ãããé žçŽ æ¯å30mlã
SiCl4èžæ°æ¯åïŒmlãGeCl4èžæ°æ¯å3.7mlãããª
ãŠã æ¯å1500mlããã®æ··åç©ã¯SiCl4ããã³GeCl4
ã25âã«ç¶æããã€ããªãŠã ãSiCl4äžã«æ¯åïŒ
mlã®æµéã§ããããŠé žçŽ ãGeCl4äžã«æ¯å30mlã®
æµéã§ããããæµåããããããã«ããªãŠã ãã
ã€ãã¹ç®¡ïŒïŒãéããŠæ¯å1.5ã®æµéã§æµåã
ãããããšã«ãã€ãŠåŸãããã25âã«ãããŠã¯ã
SiCl4ã®èžæ°å§ã¯çŽ240Torrã§ãããããããªãŠã
ãæ¯åçŽïŒmlã®SiCl4èžæ°ãæŸãäžãããããŠ
GeCl4ã®èžæ°å§ã¯çŽ85Torrã§ããããé žçŽ ãæ¯å
3.7mlã®GeCl4èžæ°ãæŸãäžããã 也ç¥ã¬ã¹æ··åç©ããã¬ããªãŒã åã«æµå ¥ããå Ž
åããã®ãã¬ããªãŒã ã¯æ¯åçŽ0.5cmã®é床ã§ç
å ã«äžéããããããæ倧ç枩床ã¯çŽ1380âã§ã
ãã ãã¬ããªãŒã ã¯çŽ90åã§å®å šã«çŒçµããããã
ã®çµæçæããçš å¯ãªã¬ã©ã¹äœã¯çããåãåºã
ããŠå·åŽãããããã®çµæåŸãããæ§é äœããã
ãã®äžå¿åãã€ã¶ããã€ããã®å€åŸãæžå¯žããã
ãããã«çŽ1800âã®æž©åºŠã§å»¶äŒžãããããã®å»¶äŒž
ã¯125ÎŒïœã®æçµå°æ³¢ç®¡çŽåŸã«éããè¯çŽåŸãçŽ
62ÎŒïœãšãªããŸã§ç¶ç¶ãããã630ã800ã820ã
900ããã³1060nmã®æšæºæ³¢é·ã«ãããå°æ³¢ç®¡æžè¡°
ã¯ãããã8.7ã3.4ã3.2ã2.7ããã³1.6dBïŒKmã§
ããã950nmã«ãããæ°Žåã«åºå ããéå°åžåã¯
çŽ17dBïŒKmã§ãããšæšå®ãããããã®å®æœäŸã
ãã³ç¬¬è¡šã«æããããå®æœäŸã®ãã¡ã®ãããã®
ã«ãããŠã¯ã950nmã«ãããæžè¡°ã¯820nmããã³
900nmã«ãããæžè¡°ã枬å®ããããšã«ãã€ãŠæšå®
ãããã950nmã«ãããæšå®æžè¡°ã¯æ¬¡ã®åŒã«ãã€
ãŠæ±ºå®ãããã 950ïŒ33ïŒïŒ¡900â820ïŒ1.0ïŒ ç¹ç¶ã®äžå¿ã«ãããå±æç茪éã«ã¯ã也ç¥å·¥çšæ
ã«ç¹ç¶ã®äžå¿ã«å°ãéå°ãªGeO2ã圢æãããã
ããã«ãå°ããã¹ãã€ã¯ãååšããŠããã å®æœäŸïŒã§çšããããç¹å®ã®ä¹Ÿç¥å€ã¯ã幟ã€ã
ã®ååŠåå¿ã®çºçã«ãã€ãŠå å°æ³¢ç®¡ã也ç¥ããäœ
çšãããã第äžã«ãSiCl4ãšGeCl4ã¯é žçŽ ãšåå¿ã
ãŠæ¬¡ã®åŒã«åŸã€ãŠå¡©çŽ ã圢æããã SiCl4ïŒO2âSiO2ïŒ2Cl2 GeCl4ïŒO2âGeO2ïŒ2Cl2 ãããã®åå¿ã§åœ¢æãããå¡©çŽ ã¯æ¬¡ã®åå¿ã«åŸ
ã€ãŠã¬ã©ã¹ããæ°Žå¡©åºãé€å»ããã ïŒãSiOHïŒCl2ãSiOSiãïŒ2HClïŒïŒïŒïŒO2 ããã§ãSiOHã¯ã·ãªã³ã³å çŽ ãã¬ã©ã¹ç¶²ã®ä»ã®
ïŒã€ã®éšåã«é£çµãããŠããããšãæå³ããã å®æœäŸïŒãïŒ å®æœäŸïŒãïŒã®å Žåã®ã¬ã¹æµéããã³å å°æ³¢ç®¡
æžè¡°ã第衚ã«æããããŠããããããã®å®æœäŸ
ã®ããããã¯ã挞å€å±æçåç¹ç¶ã圢æãããå®
æœäŸïŒããã³ïŒãé€ããå®æœäŸãšåãååŒã®å å°
波管ãçšããããããïŒã€ã®å®æœäŸã«ãããç¹ç¶
ã¯å®æœäŸïŒã®å°æ³¢ç®¡ãšåãå€è¢«ããã³è»žç·æ¹åçµ
æãæããŠãããããããªãããå®æœäŸïŒããã³
ïŒã«ãããŠã¯ãGeO2ã®éãç¹ç¶ã®è»žç·ãšå€è¢«ãš
ã®éã§åŸã ã«æžå°ããããŸããå®æœäŸïŒããã³ïŒ
ã¯ã也ç¥ã¬ã¹æ··åç©ãé€ãã°ãå®æœäŸïŒã«èšèŒã
ããã®ãšåããããã¬ããªãŒã çŒçµæ³ãçšããã
第衚ã®å®æœäŸ11ã¯æªåŠçç¹ç¶ã«é¢ãããã®ã§ã
ãã
ãè¡šã
第ïŒå³ã®æžè¡°æ²ç·ïŒïŒã¯å®æœäŸïŒã«åŸã€ãŠåœ¢æ
ãããå å°æ³¢ç®¡ã«é¢ãããã®ã§ããã åã«ç€ºãããããã«ãã²ã«ããã¢ãããŒããã
ãå å°æ³¢ç®¡ã也ç¥ããã€çŒçµããå Žåã«ã¯ããã
ã®å±æç茪éã®æªã¿ãé²æ¢ããããã«ãSiCl4ãš
GeCl4ã®å¹³è¡¡ãå¿ èŠãšããããäŸãã°ãSiCl4ãé
å°ã§ããã°ã次ã®åå¿ã«åŸã€ãŠããããã¬ããªãŒ
ã ããGeO2ãé€å»ããããããã SiCl4ïŒO2âSiO2ïŒCl2 Cl2ïŒGeO2ïŒã¬ã©ã¹ïŒâGeOCl2 ãŸã㯠GeCl4 ãããã¯ä»ã®æ®çºæ§ã²ã«ãããŠã çæç© ãŸã㯠SiCl4ïŒGeO2ïŒã¬ã©ã¹ïŒâSiO2ïŒã¬ã©ã¹ïŒïŒ
GeCl4 ä»æ¹ãGeCl4ã®éãéå°ã§ããã°ãGeO2ã«å¯ã
ã ã¬ã©ã¹ã®èãå±€ïŒ50ã100ÎŒïœã®åãïŒãæ²ç©
ãããããã®ã¬ã©ã¹ã®èãå±€ã¯çŽ æã®å€§éšåãã
ã倧ããèšåŒµãæãããçŽ æãå·åŽãããšããã®
å±€ã¯ç·åŒµç¶æ ãšãªããå¿åã®äžå¹³è¡¡ã«åºå ããŠçŽ
æã®ç Žå£ãçããããšãããããäŸãã°ã25âã®
GeCl4äžã«é žçŽ ãæ¯åçŽïŒmlã§æµåããããã€ã
ã®çµæåŸãããé žçŽ ã»èžæ°æ··åç©ãæ¯å1.5ã®
ããªãŠã ãšæ··åããããšã«ãã€ãŠåŸãããã¬ã¹ã»
èžæ°æ··åç©ããã¬ããªãŒã åã«é©çšããããšã«ã
ããçŒçµæã«ã幟ã€ãã®çŽ æã也ç¥ãããããã®
ããã«ããŠåŸãããå å°æ³¢ç®¡çŽ æã®ãã¡ã®ã»ãšã
ã©ã¯ã也ç¥å·¥çšæã«ãããã«å€§ããå¿åãå ãã
ãããããã«ç Žå£ãããç¹å¥ãªæ³šæãæããªãã
ã°ããã®ãããªç Žå£ã¯80ïŒ ã«è¿ã¥ããçŽ æãçŒçµ
å·¥çšãšãã®çŽ æã延é·ããŠç¹ç¶ã«ããå·¥çšãšã®é
ã§å·åŽãããªããã°ãç Žå£ã¯åé¡ã§ã¯ãªãããã
ã®ãããªæ¹æ³ã¯æ¥µããŠäžéœåã§ããã çŒçµããããããçŽ æã«æ®åããŠããæ°Žåã®é
ã¯ãããã¬ããªãŒã ã«æåã«ååšããŠããæ°Žåã®
éã®é¢æ°ã§ããããã®å€æ°ã¯ããããã¬ããªãŒã
ãããæ²ç©ã®æç¹ããçŒçµãå®äºãããŸã§é²åã
ããé°å²æ°ã®æ¹¿åºŠãå¶åŸ¡ããããšã«ãã€ãŠé€å»ã
ããããããããŠã管ïŒïŒãããã¬ããªãŒã åïŒ
ïŒã«æµããé°å²æ°ã«ååšããå¡©çŽ ãŸãã¯ä»ã®ä¹Ÿç¥
å€ã®éãå€ããããšã«ãããæ°Žåé€å»ã®çšåºŠãå¶
埡ããããããŸãããã®ãããªé°å²æ°äžã«ããã
ããŒãã³ãã®éãå¶åŸ¡ããããšã«ãããå å°æ³¢ç®¡
ã®å±æç茪éã«å¯Ÿãã也ç¥å·¥çšã®æªåœ±é¿ãæå°é
ã«æããããã
ãããå å°æ³¢ç®¡ã«é¢ãããã®ã§ããã åã«ç€ºãããããã«ãã²ã«ããã¢ãããŒããã
ãå å°æ³¢ç®¡ã也ç¥ããã€çŒçµããå Žåã«ã¯ããã
ã®å±æç茪éã®æªã¿ãé²æ¢ããããã«ãSiCl4ãš
GeCl4ã®å¹³è¡¡ãå¿ èŠãšããããäŸãã°ãSiCl4ãé
å°ã§ããã°ã次ã®åå¿ã«åŸã€ãŠããããã¬ããªãŒ
ã ããGeO2ãé€å»ããããããã SiCl4ïŒO2âSiO2ïŒCl2 Cl2ïŒGeO2ïŒã¬ã©ã¹ïŒâGeOCl2 ãŸã㯠GeCl4 ãããã¯ä»ã®æ®çºæ§ã²ã«ãããŠã çæç© ãŸã㯠SiCl4ïŒGeO2ïŒã¬ã©ã¹ïŒâSiO2ïŒã¬ã©ã¹ïŒïŒ
GeCl4 ä»æ¹ãGeCl4ã®éãéå°ã§ããã°ãGeO2ã«å¯ã
ã ã¬ã©ã¹ã®èãå±€ïŒ50ã100ÎŒïœã®åãïŒãæ²ç©
ãããããã®ã¬ã©ã¹ã®èãå±€ã¯çŽ æã®å€§éšåãã
ã倧ããèšåŒµãæãããçŽ æãå·åŽãããšããã®
å±€ã¯ç·åŒµç¶æ ãšãªããå¿åã®äžå¹³è¡¡ã«åºå ããŠçŽ
æã®ç Žå£ãçããããšãããããäŸãã°ã25âã®
GeCl4äžã«é žçŽ ãæ¯åçŽïŒmlã§æµåããããã€ã
ã®çµæåŸãããé žçŽ ã»èžæ°æ··åç©ãæ¯å1.5ã®
ããªãŠã ãšæ··åããããšã«ãã€ãŠåŸãããã¬ã¹ã»
èžæ°æ··åç©ããã¬ããªãŒã åã«é©çšããããšã«ã
ããçŒçµæã«ã幟ã€ãã®çŽ æã也ç¥ãããããã®
ããã«ããŠåŸãããå å°æ³¢ç®¡çŽ æã®ãã¡ã®ã»ãšã
ã©ã¯ã也ç¥å·¥çšæã«ãããã«å€§ããå¿åãå ãã
ãããããã«ç Žå£ãããç¹å¥ãªæ³šæãæããªãã
ã°ããã®ãããªç Žå£ã¯80ïŒ ã«è¿ã¥ããçŽ æãçŒçµ
å·¥çšãšãã®çŽ æã延é·ããŠç¹ç¶ã«ããå·¥çšãšã®é
ã§å·åŽãããªããã°ãç Žå£ã¯åé¡ã§ã¯ãªãããã
ã®ãããªæ¹æ³ã¯æ¥µããŠäžéœåã§ããã çŒçµããããããçŽ æã«æ®åããŠããæ°Žåã®é
ã¯ãããã¬ããªãŒã ã«æåã«ååšããŠããæ°Žåã®
éã®é¢æ°ã§ããããã®å€æ°ã¯ããããã¬ããªãŒã
ãããæ²ç©ã®æç¹ããçŒçµãå®äºãããŸã§é²åã
ããé°å²æ°ã®æ¹¿åºŠãå¶åŸ¡ããããšã«ãã€ãŠé€å»ã
ããããããããŠã管ïŒïŒãããã¬ããªãŒã åïŒ
ïŒã«æµããé°å²æ°ã«ååšããå¡©çŽ ãŸãã¯ä»ã®ä¹Ÿç¥
å€ã®éãå€ããããšã«ãããæ°Žåé€å»ã®çšåºŠãå¶
埡ããããããŸãããã®ãããªé°å²æ°äžã«ããã
ããŒãã³ãã®éãå¶åŸ¡ããããšã«ãããå å°æ³¢ç®¡
ã®å±æç茪éã«å¯Ÿãã也ç¥å·¥çšã®æªåœ±é¿ãæå°é
ã«æããããã
第ïŒå³ããã³ç¬¬ïŒå³ã¯åºçºéšæã«ã¬ã©ã¹ããã®
第ïŒããã³ç¬¬ïŒã®è¢«èŠãæ·»çããããæ æ§ã瀺ã
æŠç¥å³ã第ïŒå³ã¯è€æ°ã®å å°æ³¢ç®¡ç¹ç¶ã®æžè¡°æ²ç·
ã瀺ãã°ã©ãã第ïŒå³ã¯çŒçµçšçãšçŒçµé°å²æ°ç³»
çµ±ã瀺ãæŠç¥å³ã§ããã ïŒïŒâŠâŠã¬ã©ã¹ããã®è¢«èŠãïŒïŒâŠâŠããŠãŒã
ãŸãã¯ããããïŒïŒâŠâŠããŒããŒãïŒïŒâŠâŠç«
çãïŒïŒâŠâŠããã®æµããïŒïŒâŠâŠæ¯æéšæãïŒ
ïŒâŠâŠç¬¬ïŒã®è¢«èŠãïŒïŒâŠâŠãã¬ããªãŒã ãïŒïŒ
âŠâŠç®¡ç¶ã®æ¯æäœãïŒïŒâŠâŠãã©ããã»ã¯ã€ã€ã
ïŒïŒâŠâŠåãïŒïŒâŠâŠãã©ã³ãžãïŒïŒâŠâŠã¬ã¹èª
å°ç®¡ãïŒïŒâŠâŠçãâŠâŠæµé調æŽåšãâŠâŠæµ
éèšãïŒïŒïŒïŒïŒâŠâŠé žçŽ äŸçµŠæºãïŒïŒïŒïŒïŒâŠ
âŠããªãŠã äŸçµŠæºãïŒïŒâŠâŠãªãªãã€ã¹ãïŒïŒïŒ
ïŒïŒâŠâŠç®¡ã
第ïŒããã³ç¬¬ïŒã®è¢«èŠãæ·»çããããæ æ§ã瀺ã
æŠç¥å³ã第ïŒå³ã¯è€æ°ã®å å°æ³¢ç®¡ç¹ç¶ã®æžè¡°æ²ç·
ã瀺ãã°ã©ãã第ïŒå³ã¯çŒçµçšçãšçŒçµé°å²æ°ç³»
çµ±ã瀺ãæŠç¥å³ã§ããã ïŒïŒâŠâŠã¬ã©ã¹ããã®è¢«èŠãïŒïŒâŠâŠããŠãŒã
ãŸãã¯ããããïŒïŒâŠâŠããŒããŒãïŒïŒâŠâŠç«
çãïŒïŒâŠâŠããã®æµããïŒïŒâŠâŠæ¯æéšæãïŒ
ïŒâŠâŠç¬¬ïŒã®è¢«èŠãïŒïŒâŠâŠãã¬ããªãŒã ãïŒïŒ
âŠâŠç®¡ç¶ã®æ¯æäœãïŒïŒâŠâŠãã©ããã»ã¯ã€ã€ã
ïŒïŒâŠâŠåãïŒïŒâŠâŠãã©ã³ãžãïŒïŒâŠâŠã¬ã¹èª
å°ç®¡ãïŒïŒâŠâŠçãâŠâŠæµé調æŽåšãâŠâŠæµ
éèšãïŒïŒïŒïŒïŒâŠâŠé žçŽ äŸçµŠæºãïŒïŒïŒïŒïŒâŠ
âŠããªãŠã äŸçµŠæºãïŒïŒâŠâŠãªãªãã€ã¹ãïŒïŒïŒ
ïŒïŒâŠâŠç®¡ã
Claims (1)
- ãç¹èš±è«æ±ã®ç¯å²ã ïŒ ã¬ã©ã¹è£œåã圢æããæ¹æ³ã§ãã€ãŠãã¬ã©ã¹
ç²åã®è¢«èŠãåºçºéšæäžã«æ²ç©ããããŠå€å質ã¬
ã©ã¹ãã¬ããªãŒã ã圢æããå·¥çšãšãåèšåºçºéš
æãé€å»ããŠåèšå€å質ã¬ã©ã¹ãã¬ããªãŒã å ã«
åã圢æããå·¥çšãšãåèšå€å質ã¬ã©ã¹ãã¬ããª
ãŒã ãçå ã«é 眮ããå·¥çšãšã也ç¥å€ãå«ãã¬ã¹
æµãåèšå€å質ã¬ã©ã¹ãã¬ããªãŒã ã®ã¬ã©ã¹ç²å
éã®ééãéããŠæµåããããå·¥çšãšãåèšå€å
質ã¬ã©ã¹ãã¬ããªãŒã ããåèšã¬ã©ã¹ç²åã溶è
ããŠç·»å¯ãªã¬ã©ã¹äœã圢æããã®ã«ååãªæéã®
ããã ãã®çŒçµæž©åºŠç¯å²å ã®æž©åºŠã§å ç±ããŠçŒçµ
ãããå·¥çšãšãããªãåèšæ¹æ³ã«ãããŠã åèšã¬ã¹æµãæµåããããå·¥çšãã åèšã¬ã¹æµãåèšåå ã«æµå ¥ããããŠããã®ã¬
ã¹æµã®å°ãªããšãäžéšããåèšå€å質ã¬ã©ã¹ãã¬
ããªãŒã ã®äžå¿ãããã®ãã¬ããªãŒã ã®åèšéé
ãéã€ãŠãã®ãã¬ããªãŒã ã®å€è¡šé¢ãŸã§å€æ¹ãžæµ
åããããããšãããªãããšãç¹åŸŽãšããã¬ã©ã¹
補åã圢æããæ¹æ³ã ïŒ åèšã¬ã¹æµããåèšãã¬ããªãŒã ãå®å šã«çŒ
çµããçŽåãŸã§æµãããã«ããç¹èš±è«æ±ã®ç¯å²ç¬¬
ïŒé èšèŒã®æ¹æ³ã ïŒ åèšä¹Ÿç¥å€ãå¡©çŽ ãããªãç¹èš±è«æ±ã®ç¯å²ç¬¬
ïŒé èšèŒã®æ¹æ³ã ïŒ åèšã¬ã¹æµãåèšãã¬ããªãŒã ã®å€è¡šé¢ãã
åºãŠæ¥ããšãã«ã¯ãã®ã¬ã¹æµãé€å»ããããã«å
èšãã¬ããªãŒã ã®å€åŽè¡šé¢äžã«ãã©ãã·ã³ã°ã¬ã¹
ãæµãå·¥çšãããã«å«ãç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé èš
èŒã®æ¹æ³ã ïŒ ã¬ã©ã¹è£œåã圢æããæ¹æ³ã§ãã€ãŠãã¬ã©ã¹
ç²åã®è¢«èŠãåºçºéšæäžã«æ²ç©ããããŠå€å質ã¬
ã©ã¹ãã¬ããªãŒã ã圢æããå·¥çšãšãåèšåºçºéš
æãé€å»ããŠåèšå€å質ã¬ã©ã¹ãã¬ããªãŒã å ã«
åã圢æããå·¥çšãšãåèšå€å質ã¬ã©ã¹ãã¬ããª
ãŒã ãçå ã«é 眮ããå·¥çšãšã也ç¥å€ãå«ãã¬ã¹
æµãåèšå€å質ã¬ã©ã¹ãã¬ããªãŒã ã®ã¬ã©ã¹ç²å
éã®ééãéããŠæµåããããå·¥çšãšãåèšå€å
質ã¬ã©ã¹ãã¬ããªãŒã ããåèšã¬ã©ã¹ç²åã溶è
ããŠç·»å¯ãªã¬ã©ã¹äœã圢æããã®ã«ååãªæéã®
ããã ãã®çŒçµæž©åºŠç¯å²å ã®æž©åºŠã§å ç±ããŠçŒçµ
ãããå·¥çšãšãããªãåèšæ¹æ³ã«ãããŠã åèšã¬ã¹æµãæµåããããå·¥çšãã åèšã¬ã¹æµãåèšåå ã«æµå ¥ããããŠããã®ã¬
ã¹æµã®å°ãªããšãäžéšããåèšå€å質ã¬ã©ã¹ãã¬
ããªãŒã ã®äžå¿ãããã®ãã¬ããªãŒã ã®åèšéé
ãéã€ãŠãã®ãã¬ããªãŒã ã®å€è¡šé¢ãŸã§å€æ¹ãžæµ
åããããããšãããªããåèšã¬ã¹æµããåèšçŒ
çµå·¥çšæã«åå¿ãçããŠããŒãç©è³ªã圢æããå
åç©ãå«ãããšãç¹åŸŽãšããã¬ã©ã¹è£œåã圢æã
ãæ¹æ³ã ïŒ åèšã¬ã¹æµããåèšãã¬ããªãŒã ãå®å šã«çŒ
çµããçŽåãŸã§æµãããã«ããç¹èš±è«æ±ã®ç¯å²ç¬¬
ïŒé èšèŒã®æ¹æ³ã ïŒ åèšãã¬ããªãŒã ã®å åŽéšåããã®ãã¬ããª
ãŒã ã®å€åŽéšåã®ããç²åã®å±æçããã倧ãã
å€ã«è©²å åŽéšåã®å±æçãå¢å€§ããããç©è³ªãã
ãŒããããã¬ã©ã¹ç²åãããªãç¹èš±è«æ±ã®ç¯å²ç¬¬
ïŒé èšèŒã®æ¹æ³ã ïŒ åèšæ²ç©å·¥çšã¯ãSiO2ãšãSiO2ã®ã¿ã®å±æ
çããã倧ããå€ã«ã¬ã©ã¹ããã®ç²åã®å±æçã
å¢å€§ããããããã®ããéã®ããŒãã³ãé žåç©ãš
ãããªãç«çå æ°Žå解ã«ãã€ãŠçæãããã¬ã©ã¹
ããã®è¢«èŠãåèšåºçºéšæäžã«æ²ç©ãããããã
ãŠè©²æåã®è¢«èŠäžã«ããã®å±æçãããå°ããå±
æçãæããã¬ã©ã¹ããç²åãããªãå°ãªããšã
ïŒã€ã®éå çãªè¢«èŠãæ²ç©ããããããšã«ãããª
ããåèšã¬ã¹æµã¯ãåèšçŒçµå·¥çšæã«åå¿ããŠ
SiO2ã圢æããæåãšãåèšããŒãã³ãé žåç©
ã圢æãã¹ãåå¿ããæåãšãããªããããã«åŸ
ãããç·»å¯ãªã¬ã©ã¹äœã延䌞ããŠå ãã¢ã€ãã圢
æããå·¥çšãããã«å«ãç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé èš
èŒã®æ¹æ³ã ïŒ åèšæåã®è¢«èŠã®å±æçãããã®ååŸã®å šäœ
ã«ããã€ãŠäžå®ã§ããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé èšèŒ
ã®æ¹æ³ã ïŒïŒ åèšæåã®è¢«èŠã®å±æçãååŸã®å¢å€§ãšãš
ãã«æžå°ããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé èšèŒã®æ¹æ³ã ïŒïŒ åèšã¬ã¹æµããåèšãã¬ããªãŒã ã®å€è¡šé¢
ããåºãŠæ¥ããšãã«ãã®ã¬ã¹æµãé€å»ããããã«
åèšãã¬ããªãŒã ã®å€åŽè¡šé¢äžã«ãã©ãã·ã³ã°ã¬
ã¹ãæµãå·¥çšãããã«å«ãç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé
èšèŒã®æ¹æ³ã
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1897578A JPS54112219A (en) | 1978-02-20 | 1978-02-20 | Forming of glass product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1897578A JPS54112219A (en) | 1978-02-20 | 1978-02-20 | Forming of glass product |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54112219A JPS54112219A (en) | 1979-09-03 |
JPS6120491B2 true JPS6120491B2 (ja) | 1986-05-22 |
Family
ID=11986628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1897578A Granted JPS54112219A (en) | 1978-02-20 | 1978-02-20 | Forming of glass product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54112219A (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007026230A1 (de) * | 2007-06-05 | 2008-12-11 | Stabilus Gmbh | Antrieb zum Verschwenken einer an einer Karosserie eines Fahrzeugs angeordneten Klappe |
-
1978
- 1978-02-20 JP JP1897578A patent/JPS54112219A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS54112219A (en) | 1979-09-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4125388A (en) | Method of making optical waveguides | |
US4165223A (en) | Method of making dry optical waveguides | |
US4263031A (en) | Method of producing glass optical filaments | |
US4453961A (en) | Method of making glass optical fiber | |
JP4870573B2 (ja) | ã¢ã«ã«ãªãããŒããããå ãã¡ã€ãããã®ããªãã©ãŒã ããã³ãã®äœææ¹æ³ | |
US4157906A (en) | Method of drawing glass optical waveguides | |
US4650511A (en) | Method for the preparation of a dehydrated quartz glass material for light transmission | |
EP0915064B1 (en) | Method of making segmented core optical waveguide preforms | |
US4082420A (en) | An optical transmission fiber containing fluorine | |
JPS6086049A (ja) | ã¬ã©ã¹ç©åã®è£œé æ¹æ³ | |
JPS6124348B2 (ja) | ||
JPS5813503B2 (ja) | ã¬ã©ã¹ç©åã®è£œé æ¹æ³ | |
MacChesney et al. | Materials development of optical fiber | |
JP3941910B2 (ja) | èæ°ŽçŽ æ§å å°æ³¢è·¯ãã¡ã€ãããã³ãã®åé§äœã§ããã¹ãŒããã¬ãã©ãŒã ã®è£œé æ¹æ³ | |
EP0177040B1 (en) | Method for producing glass preform for optical fiber | |
US4242375A (en) | Process for producing optical transmission fiber | |
US4165152A (en) | Process for producing optical transmission fiber | |
EP0100174A1 (en) | Method of making glass optical fiber | |
US4784465A (en) | Method of making glass optical fiber | |
GB1596088A (en) | Method of making glass articles | |
JPS6340744A (ja) | å ãã¢ã€ã | |
JPH051221B2 (ja) | ||
JP2004509829A (ja) | å€å質ã¬ã©ã¹ããªãã©ãŒã ã也ç¥ããããã®ããã»ã¹ | |
JPS6120491B2 (ja) | ||
CA1100001A (en) | Method of making optical waveguides |