JPS63313892A - Transverse discharge excitation type composite metallic salt vapor laser - Google Patents
Transverse discharge excitation type composite metallic salt vapor laserInfo
- Publication number
- JPS63313892A JPS63313892A JP15048887A JP15048887A JPS63313892A JP S63313892 A JPS63313892 A JP S63313892A JP 15048887 A JP15048887 A JP 15048887A JP 15048887 A JP15048887 A JP 15048887A JP S63313892 A JPS63313892 A JP S63313892A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- salt vapor
- tube
- laser
- metal salt
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 150000003839 salts Chemical class 0.000 title claims abstract description 20
- 230000005284 excitation Effects 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 230000005684 electric field Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 abstract description 9
- 230000010355 oscillation Effects 0.000 abstract description 7
- 239000003990 capacitor Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 229910001369 Brass Inorganic materials 0.000 abstract description 3
- 239000010951 brass Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000006263 metalation reaction Methods 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005372 isotope separation Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/031—Metal vapour lasers, e.g. metal vapour generation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は横放電励起方式を採用した横放電励起型複合金
属塩蒸気レーザに係わり、特にレーザによる同位体分離
用の原子の励起源、あるいは高出力、高繰り返しが可能
なことを利用した原子力分野における再処理の光化学反
応の励起源、または色素レーザの励起源として有用な横
放電励起型複合金属塩蒸気レーザに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a transverse discharge excitation type composite metal salt vapor laser employing a transverse discharge excitation method, and in particular to an atomic excitation source for isotope separation by a laser, or This invention relates to a transverse discharge-excited composite metal salt vapor laser that is useful as an excitation source for photochemical reactions in reprocessing in the nuclear energy field or as an excitation source for dye lasers, utilizing its high output and high repeatability.
従来ある銅蒸気、全蒸気レーザは、レーザ源として気体
放電を構成するプラズマのどの部分を利用するかによっ
て原理、管構造、性能等に相違があるが、代表的なもの
として陽光柱型金属蒸気レーザと負グロー形金属蒸気レ
ーザがある。それらの−例として、第３図（Ａ）には陽
光柱形金属蒸気レーザ管の概要を、そして第３図（Ｂ）
には負グロー形金属蒸気レーザを示している。第３図（
Ａ）に示すものは、金属を１５００°Ｃ付近まで加熱し
、蒸気化させてガラス管内に挿入し、陽極、陰極管で光
軸と同方向の放電、即ち縦放電励起型の構成により原子
を励起し、レーザ発振を生じさせている。また、第３図
（Ｂ）に示すものは、室温で金属分子が昇華するものと
して、Ｃｕ＋Ａｌ１ｚ Ｂ ｒ ６ 、 Ａｕ ＋Ａｊ
！ｚ Ｂ ｒ６等の複合金属塩蒸気を使用し、円筒電極
により縦放電励起を行いレーザ発振を生じさせている。Conventional copper vapor and all-vapor lasers differ in principle, tube structure, performance, etc. depending on which part of the plasma constituting the gas discharge is used as the laser source, but the typical one is the positive column metal vapor laser. There are lasers and negative glow metal vapor lasers. As examples of these, FIG. 3(A) shows an outline of a positive columnar metal vapor laser tube, and FIG. 3(B)
shows a negative glow metal vapor laser. Figure 3 (
In the method shown in A), metal is heated to around 1500°C, vaporized, and inserted into a glass tube, and atoms are excited using a vertical discharge excitation type configuration in which the anode and cathode tube discharge in the same direction as the optical axis. It is excited and causes laser oscillation. Moreover, what is shown in FIG. 3(B) is Cu+Al1zBr6, Au+Aj, assuming that metal molecules sublimate at room temperature.
! Composite metal salt vapor such as z B r6 is used, and longitudinal discharge is excited by a cylindrical electrode to generate laser oscillation.
上記従来の金属蒸気レーザは、第３図（Ａ）のものにお
いては、金属を高温加熱することから保温、断熱が必要
となり、レーザ本体の構造が複雑になる欠点がある。ま
た第３図（Ｂ）においては、室温で金属分子を昇華させ
るため高温加熱の必要はないが、この装置も縦放電励起
を行うため円筒電極を使用せざるを得ず、放電断面中の
温度分布、脱励起の不均一、レーザ発振の空間的な時間
遅れを生じ、レーザビームの質が低い、ものとなる欠点
があった。The conventional metal vapor laser described above, as shown in FIG. 3A, has the drawback that the metal is heated to a high temperature, so heat insulation and insulation are required, and the structure of the laser body is complicated. In addition, in Fig. 3 (B), there is no need for high-temperature heating because the metal molecules are sublimated at room temperature, but this device also has no choice but to use a cylindrical electrode to excite vertical discharge, and the temperature in the cross section of the discharge This method has disadvantages such as uneven distribution, non-uniform de-excitation, and spatial time delay in laser oscillation, resulting in poor quality laser beams.
本発明は、上記問題点を解決するためのもので、横放電
励起方式を採用することにより放電体積全体の温度分布
、励起電子密度分布、脱励起等を均一に行い、レーザビ
ームの質向上ならびにエネルギー変換効率向上を図るこ
とが可能な横放電励起型複合金属塩蒸気レーザを提供す
ることを目的とする。The present invention is intended to solve the above-mentioned problems.By adopting a transverse discharge excitation method, the temperature distribution, excited electron density distribution, deexcitation, etc. of the entire discharge volume are made uniform, and the quality of the laser beam is improved. An object of the present invention is to provide a transverse discharge-excited composite metal salt vapor laser that can improve energy conversion efficiency.
そのために本発明の横放電励起型複合金属塩蒸気レーザ
は、複合金属塩蒸気が満たされたレーザ管内に平等電界
電極を管軸に直交させて対向配置し、横放電励起によっ
て金属原子を励起することを特徴とする。To this end, the transverse discharge excitation type composite metal salt vapor laser of the present invention arranges uniform electric field electrodes facing each other orthogonally to the tube axis in a laser tube filled with composite metal salt vapor, and excites metal atoms by transverse discharge excitation. It is characterized by
本発明の横放電励起型複合金属塩蒸気レーザは、複合金
属塩蒸気を使用することにより室温でのレーザ発振を可
能にし、横方向放電のため、その構造から放電回路のイ
ンダクタンスを低減できると共に、平等電界電極を使用
することにより温度分布、励起電子密度分布、脱励起等
が放電領域内で均一に得られる。The lateral discharge-excited composite metal salt vapor laser of the present invention enables laser oscillation at room temperature by using composite metal salt vapor, and because of the lateral discharge, the inductance of the discharge circuit can be reduced due to its structure. By using uniform electric field electrodes, temperature distribution, excited electron density distribution, de-excitation, etc. can be uniformly obtained within the discharge region.
以下、実施例を図面を参照して説明する。 Examples will be described below with reference to the drawings.
第１図は本発明による横放電励起型複合金属塩蒸気レー
ザの側面図で、第２図は第１図の側面図のＡ−Ａ断面図
である。FIG. 1 is a side view of a transverse discharge-excited composite metal salt vapor laser according to the present invention, and FIG. 2 is a sectional view taken along line A-A of the side view in FIG.
図中、１は排気管、２はバッファガス注入管、３はプリ
ュスタ窓用フランジ、４は金属及び昇華材挿入管、５は
放電ガラス管、６．６′は沿面放電防止板、７．７′は
ＮｉがまたはＡ６．黄銅にＮｉメッキを施した平等電界
電極、８，８′は回路接続板、９はコンデンサである。In the figure, 1 is an exhaust pipe, 2 is a buffer gas injection pipe, 3 is a Prusta window flange, 4 is a metal and sublimation material insertion tube, 5 is a discharge glass tube, 6.6' is a creeping discharge prevention plate, and 7.7 ' is Ni or A6. Equal electric field electrodes made of brass plated with Ni, 8 and 8' are circuit connection boards, and 9 is a capacitor.
第１図および第２図において、放電ガラス管５内に金属
及び昇華材挿入管４より室温で、複合金属塩蒸気（Ｃｕ
＋Ａｊ！ｔ Ｂｒｂ 、Ａｕ＋Ａｊ！ｚ Ｂｒ６）の金
属分子が拡散される。バッファガス注入管２から、放電
ガラス管５内を第１図右方がら左方へ向かってバッファ
ガスが注入され、排気管１へと移動される。この間、放
電ガラス管５内に対向して配置したＮｉ、またはＡ７！
、黄銅にＮｉメッキを施した平等電界電極７，７′間に
、コンデンサ９より高電位パルス電圧を供給することに
より、光軸に対し、横方向からの放電、即ち横放電励起
を加えることにより放電量内にレーザ発振を生じさせ、
ブリュスタ窓を通して安定したレーザ光を取り出すこと
ができる。1 and 2, composite metal salt vapor (Cu
+Aj! tBrb, Au+Aj! z Br6) metal molecules are diffused. Buffer gas is injected from the buffer gas injection tube 2 into the discharge glass tube 5 from the right to the left in FIG. 1, and is transferred to the exhaust tube 1. During this time, Ni or A7! placed oppositely in the discharge glass tube 5!
By supplying a high-potential pulse voltage from a capacitor 9 between uniform electric field electrodes 7 and 7' made of Ni-plated brass, a discharge from the lateral direction with respect to the optical axis, that is, lateral discharge excitation is applied. Produces laser oscillation within the discharge amount,
Stable laser light can be extracted through the Brewster window.
なお、沿面放電防止板６，６′は放電ガラス管内壁の沿
面放電を防ぐ目的で設けられている。Incidentally, the creeping discharge prevention plates 6, 6' are provided for the purpose of preventing creeping discharge on the inner wall of the discharge glass tube.
以上のように本発明によれば、複合金属塩蒸気を使用す
ることにより室温でのレーザ発振が可能になることから
レーザ放電管の構造が簡単になり、横放電励起方式が採
用できろうになると同時に、横放電励起方式を採用する
ことにより、空間的に一様な放電が可能となり、温度分
布、励起電子密度分布、脱励起等が放電領域内で均一に
得られる。As described above, according to the present invention, the use of composite metal salt vapor enables laser oscillation at room temperature, which simplifies the structure of the laser discharge tube and makes it possible to adopt the transverse discharge excitation method. At the same time, by adopting the lateral discharge excitation method, spatially uniform discharge is possible, and temperature distribution, excited electron density distribution, deexcitation, etc. can be uniformly obtained within the discharge region.
また、レーザビームの空間的な時間遅れも解消され、レ
ーザビームの質の向上を図ることができる。Moreover, the spatial time delay of the laser beam is also eliminated, making it possible to improve the quality of the laser beam.
そして、横放電励起方式は電気回路がコンパクトになる
と共に、横放電励起方式の放電長に比べその放電長が１
／１０以下と短縮され、回路中に含まれるインダクタン
ス成分を低減できるため、従来の銅蒸気レーザのエネル
ギー変換効率（約１％）に比して効率の向上が図れる等
の効果がある。In addition, the horizontal discharge excitation method has a compact electric circuit, and the discharge length is 1
/10 or less, and the inductance component included in the circuit can be reduced, which has the effect of improving efficiency compared to the energy conversion efficiency (about 1%) of conventional copper vapor lasers.
第１図は本発明による横放電励起型複合金属塩蒸気レー
ザの側面図、第２図は第１図の側面図のＡ−Ａ面での断
面図、第３図は従来の金属蒸気し−ザ管の概要図であり
、同図（Ａ）は陽光柱形金属蒸気レーザを、同図（Ｂ）
は負グロー形金属蒸気レーザを示す。
１・・・排気管、２・・・バンファガス注入管、３・・
・ブリュスタ窓用フランジ、４・・・金属及び昇華材挿
入管、５・・・放電ガラス管、６．６′・・・沿面放電
防止板、７．７′・・・平等電界電極、８．８′・・・
回路接続板、９・・・コンデンサ。FIG. 1 is a side view of a transverse discharge-excited composite metal salt vapor laser according to the present invention, FIG. 2 is a cross-sectional view taken along the A-A plane of the side view of FIG. Figure (A) shows a positive columnar metal vapor laser, and Figure (B) shows a schematic diagram of the laser tube.
indicates a negative glow metal vapor laser. 1... Exhaust pipe, 2... Banfa gas injection pipe, 3...
- Brewster window flange, 4... Metal and sublimation material insertion tube, 5... Discharge glass tube, 6.6'... Creeping discharge prevention plate, 7.7'... Equal electric field electrode, 8. 8'...
Circuit connection board, 9... capacitor.
Claims (3)
界電極を管軸に直交させて対向配置し、横放電励起によ
って金属原子を励起することを特徴とする横放電励起型
複合金属塩蒸気レーザ。(1) Lateral discharge excitation type composite metal salt vapor characterized by arranging uniform electric field electrodes facing each other orthogonally to the tube axis in a laser tube filled with composite metal salt vapor, and exciting metal atoms by lateral discharge excitation. laser.
ｕ＋Ａｌ＿２Ｂｒ＿６である特許請求の範囲第１項記載
の横放電励起型複合金属塩蒸気レーザ。(2) Composite metal salt vapor is Cu+Al_2Br_6,A
The transverse discharge-excited composite metal salt vapor laser according to claim 1, wherein u+Al_2Br_6.
る特許請求の範囲第１項記載の横放電励起型複合金属塩
蒸気レーザ。(3) A transverse discharge-excited composite metal salt vapor laser according to claim 1, wherein a creeping discharge prevention plate is provided between the equal electric field electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15048887A JPH0666530B2 (en) | 1987-06-17 | 1987-06-17 | Lateral discharge excitation type composite metal salt vapor laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15048887A JPH0666530B2 (en) | 1987-06-17 | 1987-06-17 | Lateral discharge excitation type composite metal salt vapor laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63313892A true JPS63313892A (en) | 1988-12-21 |
| JPH0666530B2 JPH0666530B2 (en) | 1994-08-24 |
Family
ID=15497968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15048887A Expired - Fee Related JPH0666530B2 (en) | 1987-06-17 | 1987-06-17 | Lateral discharge excitation type composite metal salt vapor laser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0666530B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2706692A1 (en) * | 1988-07-07 | 1994-12-23 | Us Energy | Improved apparatus for producing a laser beam |
| FR2706693A1 (en) * | 1988-07-07 | 1994-12-23 | Us Energy | Improved apparatus for producing a laser beam |
-
1987
- 1987-06-17 JP JP15048887A patent/JPH0666530B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2706692A1 (en) * | 1988-07-07 | 1994-12-23 | Us Energy | Improved apparatus for producing a laser beam |
| FR2706693A1 (en) * | 1988-07-07 | 1994-12-23 | Us Energy | Improved apparatus for producing a laser beam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0666530B2 (en) | 1994-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |