CS271055B1

CS271055B1 - Active material for adjustable lasers

Info

Publication number: CS271055B1
Application number: CS434083A
Authority: CS
Inventors: Jevgenij V Zarikov; Vladimir V Laptev; Bert Struve; Gunter Huber; Ivan A Scerbakov
Original assignee: Jevgenij V Zarikov; Vladimir V Laptev; Bert Struve; Gunter Huber; Ivan A Scerbakov
Priority date: 1983-02-02
Filing date: 1983-06-15
Publication date: 1990-08-14
Also published as: DD242540A3; SU1099802A1; PL246018A1

Description

1 271 055

HrjoepeTeiiHe othochtch k MaTepHajiaM una Jiaaepnoň τθχιιηκη, a eonee κοηκρθτηο, k JianeputiMKpHCTaJiJiaM rpaiiaTa. βκτηβηροββηηορο ηοηβμη xpowa. m npeaiiaaiiaieHo «jia noJiyMeHHH aKTpHBiiuxοαθμθητοβ TBepAOTejibiiux Jia3epoe c nepecTpaHBaeMoR ajihhoH bojihu reHepauHH a ejiHWHeň HK oe.nacrn¢0.65 - 1 mkm) πρη KOMitaTHofi TeMnepaType.

CymecTBywT TBepAOTejibHue jiaaepu, nepecTpaHBaeMue b oeJiacTH ajihh bojhi 1-2,1 mkm, βκτηβημμMaTepHaJioM ona kotopmx cjiywaT KpHCTajiJiu Mg F2 . βκτηβηροββηημθ hohamh V2*, NI2* Co2* Cl] .

HeaocTaTKOM othx MaTepwaJioB aBJíaeTca Heno3MO>MHocTb nojiyaeHHa reHepauHH πρη κομηβτηοηTeMnepaType.

Heweojiee isjihbkhm k npeunoweiiiioMy TexHHHecKOMy peuieHHB aBJíaeTca aKTHBHitň MarepuaJi ajih TBepaoTejibiiux nepecTaHBaeMMx Jia3epoe, coAepwauiHR KPHCTajiJiHMecKyn MaTpHuy c Cr3* βκτηβημμ hohom [2] . B ajiexcaHupHTe hohu Cr3* 3annMa»T MecTa hohob AI3*, KOTOpue ajih xpoMa aBjia»Tca CJiHUiKOM "TecHMMH“, τβκ κβκ hohhmR paAHyc AI3* 3HaMHTejii>iio MeHbuie HOHHorn paaHycaO o

Cr3*<rfti3-0.53 A: rcr3+ - 0,615 A). nooTOMy KPHCTaJinu aJiexcaHApHTa xopouiero οπτηίθιικογο

KaaecTBa nrjjiyieiiu πρη onena MaJiux KOHueHTpatiHax Cr3* <He eonee 0,4¾ aT.), npH stom H3-3ahajihmhh b cTpyKType aJieKcaiwpHTa AByx HeaKBHBaJieiiTHMX nojiomeiiHň hohob AI3* toulko nacTb hsboiubauihx b peuieTKy hohob Cr3* πρηηημβθτ yxacTHe b reHepauHH. B CBH3H c sthm TpeeyioTcnJtocTaTOHHo KpyiiHue aKTHBHue οπθμθητμ ona nojiyMenna neoexoAHMoro KoaeeHUHeHTa ycHJieHHa.

KpoMe τογο, b ajiexcaHApHTe napaMeTp KPHCTannHMecKoro nona Dg/B thk bějimk, mto paanocTboweprHň MewAy ypoenaMH 2E h 4T2 coeTanjiaeT 000 cm“1 . flosTOMy ypoeeHb 4T2 <c KOToporoocyuiecTBJíaeTca reHepauHH c nepecTpoňKoR ajihiiu bojihu) πρη KOHHaTHoh TeMnepaType TepMHMecKHcjiaeo jacejieH, η cneKTp n»HHnecuenunH noxojueaeT napany c uiHpoxonojiocHUM HSJíyaeHHeM nánepexoae 4T2-4A2 ABoRay» jimhhm < R - jihiihh) c ropaďAo eojibiuefi ηητθηοηβηοοτα», xoTopaacooTBeTCTeyeT nepexony 2E - 4A2. Τβκ κβκ 3HaMHTenbHaa aacTb sHeprHH ΗβκβΜΚΗ pacxoAyeTca naHajiyaeHHe R - jihhhR. to noporoBaa iiaxaMKa jiaeepa Ha ajiexcaHAPHTe nacTOJibKO BeJiHKa, mtoBO3MOH<eH tojilko HMnyjibCHuR pextHM paaoTU Jiaaepa.

UeJib Η3οβρθτβΗΗΗ - noauuieiiHe Kflfl. noHHMteiiHe nopora renepauHH h pacuiHpeHHe oejiacTHnepecTpoRKH naoepa. nocTaejieiiHaa uenb AOCTHraeTca τθμ. *ιτο b ακτηβηομ MaTepnajie ajih TBepnoTejibiiuxnepecTpanBaeMUX naaepoe. coAepxtauieM KpHCTajijiHaecKyn MaTpHuy c Cr3* akthbhum hohom,KpHCTaJtJiHHecKaa MaTpHua Buepana co cTpyKTypoR rpaHaTa h HMeeT «opMyjiy A3B2-xCrx .C3 ,0i2 , rae1 - no xpaRHeR Mepe οαηη H3 aneMeiiTOB, BuepaHHUx H3 rpynnu V. La. Ce. Gd. Lu, 5c; β - no KpaftHeň Mepe οαηη H3 aneMeiiTOB, Buepaniiux ho rpynnu Sc, Ga. In, Lu, AI, Gd, Ϋ. £ - ajieMeHT Ga hjih cMecb oJieweHTOB Ga η AI h coaepxtHT Cr3* b KOJiHMecTse 0.001-4,5 aT.%.

Ha ΦΗΓ.1 H3O<spa>KeHa KpHCTannHMecKaa peuieTKa rpaHaTa;

Ha »ηγ.2 npHBeueHU cnexTpu Ji»MHiiecuetiuHH πρη komhathoR TeMnepaType ajih πητη npHBeAeniiuxHHxte npMMepoB;

Ha φηγ.3 npHBeAeii cneKTp nponycKaiiHH ajih ηθτβθρτογο npHMepa;

Ha «nr.4 πρΗΒβΑβΗ cneKTp naoepnoro Hajiyieann ajih μθτββρτογο npHMepa I a

Ha «ηγ.5 npHBeAeHa aaBHCHMocTb buxoahoR mouiiiocth renepauHH ot nomouieimafi moi ,u-cthηακαμκη una neTBepToro npHMepa.

CyuMiocTb HooepeTeHHa 3aK»MaeTca b tom. mto aiiepreTHMecKHň 3a3op MewAy ypoenaMH '*T2 h 2Ehohob Cr3* b raAAHeeux rpaiiaTax cyuiecTBeHHO Meiibuie, mbm ajih ajiexcaHAPHTa <800 cm _1 > h. b3aBHCHMOCTH OT COCTaBa, OH H3MeHaeTCH OT 600 CM“1 AO 0. B COOTBeTCTBHH C 3ΤΗΜ HHTeHCHBHOCTbK3AyMeHHa napa3HTiiux R - jihhhH yMeHbiuaeTca ao 0 <αηγ.2), mto no3BOjiaeT nojiyMHTb reiiepauH» πρηeojiee hh3khx no cpaBHeHHn c aAexcaHAPHTOM iiaKaMKax. ΚροΜβ τογο. πρη aapHauHH cocTaeaKPHCTajuioB AOCTHraeTca HenpepuBiiuň cabht 4T2 - nojiocu. τβκ mto MaxcHMyM H3JiyneHHH μοικοτ

BapbHposaTbca ot 700 ao 850 hm (*ηγ.2). 3to 3ηαμητθαβηο pacuiHpaeT oenacTh ηόλυμθιιηη Cr3* -Αβ3βροβ Ha rajuiHeBux rpaHaTax no cpaBiieHHB c aueKcaHApHTOM. kotopuH He AonycxaeT ηηκακηχ 271 055 2 H3MeiienHň ocijiacTH nepecTpoíÍKH BcjieACTBHe CTporo onpeaejieHnoro cocTaBa KpHCTaJiJia. B raJiJiHeoux rpatiaTax hohu Cr3* 3aMeuianT hoiiu Ga3*, » BCjieacTBHe τογο, «ιτο HoiiHtie pajinycuO o

Cr3* h Ga3 npaKTMMecKH οληιιθκοβη (rcr3+ - 0.615 Λ; TGa3+ - 0.62 A). κοθφφηηηθητ pacnpeAejieiiHH

Cr3* b raJUiHeaux rpanaTax <s.jih3ok hjih eojibuie eAHUHUU. b οτληηηθ ot ajiexcaHflpHTa (γλι3+ - 0,53

O A). mto iici3BOJiíieT ββολητβ Cr3* b rajuiHeeue rpaHaTM b eojibuiHX KOJiH*iecTBax ee3 yxyauieiiHM□nTHsecKoro xaMecTsa kphctajijiqb, Torna Kax jaMememie AI3* Ha Cr3* b ajiexcaHHPHTe (ΒθΛΙΟμ)OMeHb OrpailHMeiIO. &ΠΗ ΤΟΓΟ, ΊΤΟ6Ν H3MeilHTb CneKTpOCKOnHMeCKHe CBOÍCTBa KpHCTaJlJlOB. OCOeeHHO OOJiaCTb A.JIHIIbojih H3Jiy'ieiiH5i jiaaepciB, πρημθηηιοτ eHHaptiue h TpoHnue cmbch 3jieneHTOB corjiacno oopMyjieΗ3ΟβρβΤθΗΗΗ. EcJIH ΙΙβΟβΧΟΑΗΜΟ CABHHyTb JHOMHIieclleilTliyiO KpHByM B OBJíaCTl ĎOJiee KOpOTKHX AJ1HHbojih. to b noJiowenHíi B h C KpHCTajuiH'iecKOH peweTKH rpaHaTa momho ββοαητβ hohii AP*. Πρη stohne cjieayeT ββοαητβ cauuie 40% AI, nocxojibKy H3JiyvieHne R - jihhhh CTaHOBHTca cpaBiiHMMM caJieKcaiiAPHTOM h yTpaMHBaioTCsi cneuHíHMecxHe npeHMyuiecTBa rajuiHeeux rpanaTOB. , CneKTpu jHOMHiiecuemiHH hokob Cr3* ajih nsiTH npHMepoB aKTHBHoro MaTepHaJia c oemeň •bopMyjioííA3B2-xCr xCaOi2. rae X - 0.0002-0.9, mto b nepecMeTe Ha aTOMHtie npoueHTM jtewiT b AHanaaoiie0.01-4,5% aT, a ημθηηο; 1) HTTpnň-rajuineBoro rpanaTa (YGG HJIH C Y3 > C YO . 1 Gai . 8976 CrO. ΟΟ24 1 Ga30l2> 2) HTTTpHÍí-cKaHAwň-rajiJiHeBoro rpaHaTa (YSGG HJIH (Ϋ3)íSei,4Gao.S972Gro.0028] Ga30l2> 3) raAOJiHHHií-raJiJiHeBaro rpaHaTa (GGG hjih (G1I3 ) C Gdo. O40ai, 9s0ro. 011 Ga30i2) 4) raAOJiHH Hň - c κ ahahh—r a ji ji ηθβογο rpanara (GSGG hjih (Gd3)tSei.6Gao.3e75Cro.o125] Ga30i2) 5> JiaHTaH-jHOTeuHň-rajiJiHeBoro rpaHaTa (LLOG hjih (La2.199Luo. 801 > [Lili ,984Cro. 016 1 0a30l2> (b nepecMeTe na aTOMiiue npoueHTM KOHueiiTpauHsi Cr3* paena 0,012; 0,014; 0.05; 0.0625 h 0.08 aT.% cooTBeTCTBeHHO) - npeAcTaBJíeiiM 11a φηγ. 2. Πο aecuncce OTJioweHa ajihha bojihm b iim. noορΑΗΗβτβ - HHTencHBiiocTb jHOMHiieciieHUHH b npoH3BOjibHMX eAHHHuax. HajiyieHHe R - jihhhíínpoHBJísieTcsi tojibko ajih nepnoro npHMepa. ιιο 3itaMHTejibHQ CAaeee, 'leM b ajieKcaiiApHTe. flpHBeAeiIUWecneKTpu JnoMHiiecueimHH noKaauBanT, mto oejiacTB nepecTpoRKH Jia3epa ajih npHBeaemiux npHMeponcocTaBJíweT ot 660 hm ao no Meiibiueií Mepe 950 hm. fla φηγ.3 npHBeaeH οπβκτρ npocnycKaHHn ajih μθτβθρτογο npHMepa (GSGG). Οτμθτληβο bhahm oeerlOJlOCU ΠΟΓΑΟίνΟΗΗΗ ypOBHÍI (640 HM) h 4Tl (460 HM).

Ha φηγ. 5 npHBeAOHa aaBHCHMOCTB buxoahoh moiuhocth Er a mBt ot norAomeHiiOH moiuhocthHaKaMKH Eli npH BOaeyjttaeHHH renepauHH kphiitoiiobum JaaepoH Ha AjiHiie bojihm A P647 hm haproHOBUM jia3epoM Ha AJiHiie bojihm 4BB hm (οοοτΒβτοτββΗΗο b nojiocu norjiotueHHíi ypaBHeň 4T2 h 4TiHOHOB Cr3 *). Πρη nponycKaiiHH 3epxajia T - 1.1% (Hcnojib3OBajicn KOHueHTpHMecKHH pe3onaTOp c paccTOííHHSiMHMewAy 3epxaJiaMH 20 cm) nojiyMen AH®«epemiHaJibiiuH ΚΠΛ ( 2 ) - 11% πρη HaicaMKe κρηπτοιιοβμμ jia3epoM η 6.5% πρη HaicaMKe αργοηοβμμ jia3epoM.

Ha KPHCTajuie aJietccaiiApHTa corJiacHn npoTOTHny b ycJioBHHX. anajiorHMHHX ycJioBHHM a.jihrajuiBeBUX rpaiiaTOB, renepauHio nojiyMHTb He yAaJioct. τβκ Kax nopor BoaeyjKAeiiHH renepauHH ajih nero ne suji AOCTHrnyT.

Ha φηγ.4 npHBeaeii cneKTp Jia3epíioro H3AyMeHHSi hohob Cr3* c MaKCHMyMOM πρη 777 hm.OTAeJlbHMO ΠΗΚΗ BM3BaHU pa3JIHMIIMMH peSOIlaTOpHMMH MOAaMH.

OcjieacTBHe uihpokhx nojioc norjiomeiiHH hohob Cr3* (φηγ. 3) BO36ywAeHHe renepauHH KpHCTaAJioamoikiio ocyuiecTBJísiTb c noMOUib» uiHpoKonoJioctioň JiaMnoeoň HaKaMKH, Kax HMnyjibcuoň. Tax hHenpepuBnofi.

BupaiuHoaHHe kphctbjijiob. onHcaHiiux b πητη npHBeAeiinux npHMepax. ’ ocyuiecTBJíHJiocb

nocpeACTBQM BMTsirHBaHHH H3 pacnJiasa (mstoa ‘loxpaJibCKoro). Hcnojib3OBajicH. uanpHMep. cjieayioiUHH cnocoe nojiyMetiHH HOHoxpHCTaJuioB. HcxoAHMe MaTepHajiu (uanpHMep ajih GSGG - rpaHaTa)

Gd2 O3. Sc2 O3 0a2O3 h Cr2 03 TiuaTejtbuo nepeMeuiHBaioT. npeccywT β τββΛβτκκ η CHHTe3Hpy»T b njiaTHHOBCiM THroe b TeMenHe 8 Macoe πρη 1200°C. 3aTeM TaejieTKH pacnJiaBJíHioT β ηρηαηοβομ THrjie b 3 271 055

oaKpuToR KaMepe (aTMoc»epa: 98% oe. N2 +2% αβ.02). KpHCTaji.nu BMTxrHBajiH H3 pacnjiaea (oateM 100 cm3) co ckopoctm) 7 μμ/ί, cicopocTb BpaiueHKB 85 οβ/MHH. ílocjie OTPUBa ot pacnnaeaKPHCTaJiJi jihhohho oxJiamaajiH ao komhbthoR TeMnepaTypu b TenetiHe 14 m. B KaiecTee κοιικρθτηογο npHMepa nojiyneiiu KpHCTajuiu cocTaea 0d3 Set.ye Cro.O2sGa3.195Ο12CO CJIBAyiOllIHMH «H3H'leCKHMH CBOÍÍCTBaMH = cHMeTPHsi-icyeHHecKaíi;o nocTOHimaH peweTKH - 12.56 A;noKaaaTejip npeJioMJieiiHíi - 1,95; ΤΗΠΚΜΗΜβ pa3MepU - AJIHHa 10 CH, ΑΗβΜβΤρ 2.5 cm;

TeMnepaTypa ruiaBJíeHHíi - 1860°C. ΠρΗΜθΗβΗΗθ KpHCTaJIJIOB ΠΟ Η3ΟβρβΤβΗΗ» Hfi ΟΓΡβΗΗΜΗΒβθΤΟΗ HCnOJIb3OBaHHeM HX B KaMBCTBOnepecTpaMBaeMux Jia3epoe. AaHHue KpHcTajuiu hokiio HcnoJibaoeaTb Tax we Kan eecKOHTaKTiiue wihkmTeMnepaTypu. OpeMH >ΚΗ3ΗΗ BoseyxMieHHoro coctohhhh hoiiob Cr3-·· aaeHCHT ot TeMnepaTypu. UjisinpHBeaeimux πρημθροβ βρόμη imh3Iih πρη 4 K cocTatutneT HecKojibKO Mcex, a npH 300 K - neckojíi-koοοτβΗ mcck. KpHCTaJiJiu BO3cyx<aai0T kopotkhmh cbctobuhh HHnynbcaMH h H3MepsinT naaeHHe bo βροηθιιηHHTeHCHBHOCTH JMOMHHeClieHUHH <BpeMH KH3IIH BO3eyWAeHH0r0 COCTOHHHH 4Ta HOHOB Cr3 + ) HJIHCOOTHOllieHHe HHTeHCHBHOCTH HOJiyMOHHH UIMPOKOfí nOJIOCU H R “ JIHHHH.

TeXHHKO-3KOHOMH'ieCKaH 3«*eKTHBHOCTb ΠΟ Κ3Ο6ρθΤβΗΗ» BHAIla ΠΡΗ CpaBHBHHH ero C eapOBUMοβι,οκτοΜ. b Ka*iecTBe κοτορογο Buepaii KPHCTajui aJiexcaHAPHTa. 1. KpHCTajuiu no ΗΒοβρβτβιΐΗη HMenT 3itaHHTejibHO eojiee uiHpoKyn oajiacTb nepec-τροίίκΗ 'lacm™reHepauHH BCjie-ncTBHe bobmomhocth H3MeHeiiH$i χημημθοκογο cocTaea MaTpHUU <φηγ.2). 2. KpHCTan-nu no ΗΒΟβρβτβΗΗ» hbjihiotch coaee npeanoMTHTeJibHUMH c tomkh 3peHHsi τθχηολογηηno.ny«ieHHsi BcaeacTBHe: a) KyeH>iecKofi crpyKTypu (aJieKcanApHT ΜΜββτ opTopoMcHMecxyio CTpyKTpypy):a) ocaemeiniocTH BBeaeiiHíi hoiiob; B) OTCyTCTBHH TOKCHHHUX ΚΟΜΠΟΗΘΙΙΤΟΒ (ajieKCailflPHT COaepWHT OKCHA eepHJIJIHH, KOTOpuHHBJIHeTCH CHJIbllUM HAOM ) . 3. KpHCTa-juiu ΗΜβ»τ cojiee bucokhs reHepaiiHOHiiue xapaKTepMCTHKH Bcne.ncTBHe: a) 3iia*iHTejibiio coaee caaeoR hiitoiichbiiocth napaaHTiioR R - jihhhh hjih ee ποαηογο OTcyTCTBHíi<φηγ.2>; (!) BU3MOWHOCTH ΒΒβΑΟΙΙΗΗ COAee BUCOKHX paCOMHX ΚΟΗΙΙΘΗΤρβΙΙΗΗ HOHOB Cr3 + nepe-iHC-nemiue npeHMyuiecTBa KPHCTaaaoB no H3O6peTe>iH» ποββοαηαη unepBue c:o3AaTbTBepaoTejibHuň nepecTpaneaeMuR aaaep Ha HOHax neperoAHUx MeTaaaoe, paeoTawuiHR b nenpepuBiioMpe»KHMe πρκ κοΜίιβτιιοϋ TeMnepaType. 271 055 4 •OPMyJUl H30EPETEHM3

Akthbiimíí MaTepnaji njin TBepaoTejibiiux nepecTpaHBaeMUX jia3epoB, coaepmauiHti KPHCTajuiHMecKyioMaTpHUy C Cr3'·" aKTHBHUM MOHOM, OTJIHMaBWHňcSl TĚM, MTO C 11β.ΠΙ>» nOBUUieUHSl ΚΠΑ. nQHHWeHHSl noporareiiepauHH h paciiiMpenHsi oejiacTH nepecTpoHKH Jiasepa. KPHCTajuiHHecKasi MaTpnua Biiípaiia coCTpyxTypofi rpauaTa η ημθθτ «opMyjiy A3B2C3O12. r«e Λ - no Kpaňiieň Mepe oahii H3 ajieMenTOB, BuepaHnux H3 rpynnu Y. La. Ce, Gd. Lu. Sc B - no xpaiúietí Mepe οληη H3 ολθμθητοβ, Buepaimux H3 rpynnu Sc, Ga, In. Lu, AI. Gd. Y. C - 3JieMeHT Ga hjih cMecu aJieMeiiTOB Ga m AI. n cttnep»HT Cr3* b KOJiHMecTae 0.001-4,5 ar.% .

Hctomiihkh mitopMauHH, npHHame bo βηηηβκηβ πρκ 3xcnepTH3e: 1. Guenther B.D., tluser R.G."Tunable Lazers - An OverView” IEEE. J.Quant. Electron. QE -18. 1980. pp.1179-1184. 2. Valllng J.C. et al. "Tunable Alexandřite Layers” IEEE. J.Quant. Elestron. QE - 16.1900, 1302-1315 - προτοτηπ. 271 055

P E » E P A T AKTHBIOIH ΜΛΤΕΡΗΛΑ AAH TBEPAOTEJIblIUX IIEPECTPAHBAEMUX ΑΛ3ΕΡΟΒ

Akthbhuh MaTepHaji ajisi TBepAOTejibiiux nepecTpaHBaeMux Jiaaepoe, coAepxtautHH KPHCTaJMiHHecKynMaTpHuy c Cr3* aKTHBHUM HoiioM. b κοτοροΜ KPHCTajiJiHMecKan MaTpMua BuepaHa co CTpyKTypoňrpaiiara Η ημθθτ «opxyjiy A3B2C3 012. rae fi - no MeiibuieR Mepe oahh H3 aneHeHTOB, BuepaHHuR K3 rpynnu. cocTOsuueň H3= Y. La. Ee. Gd. ku. Se; B - no MeHbuieA xepe oahh hs ajieHeiiToe, euepaiiHuň H3 rpynnu, cocTonuteR H3: Sc . Gd. Ga. in. ku. fll. Sil. γ. !3a. fll. C - ςβαθμθητ Ga hah CMecb θλεμβητοβ Ga η AI, η οοαθρμητ Cr3 + b kojihm6ctbb 0.001-4.5 aT.t.

Claims

271 055 PŘEDMĚT VYNÁLEZU Aktivní materiál pro přestavitelné lasery v pevné fázi. mající krystalickou mřížku chró-mu s aktivním Iontem (Cr3*), vyznačující se tím. že za účelem zvýšení efektivnosti aktivníúčinnosti média, snížení prahu generace a rozšíření oblasti přestavítel nosti laseru, má krys-talická mřížka granátu vzorec ; Λ3B2-xCrxC30i2 kde : Λ - aspoň jeden z prvkA je vybrán ze skupiny ytrlum (Y), lanthan (La), cer (Ce) ,gadollnlum (Gd). lutheclum (Lu), scandlum (5c); B - aspoň jeden z prvkA je vybrán ze skupiny scandlum (Sc). galium (Ga). indium (In).lutheclum (Lu). hliník (AI), gadollnlum (Gd), ytrium <Y); C galium (Ga) nebo směs prvkA galia (Ga) a hliníku (AD a obsahuje chrom s aktivnímlontem (Cr3+) v množství od 0.001 do 4.5 atomových přičemž X “ od 0,0002 do 0,9. 3 výkresy «I