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Research on Excitation and Relaxation Processes in the Self-Terminating Metal Vapor Laser of Low-Temperature Operation Using a Metal-Vapor-Complex Reaction

Research Project

Project/Area Number 63550281
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 電子機器工学
Research InstitutionIwate University

Principal Investigator

TANIGUCHI Hiroshi  Iwate University, Engineering, Res. Assistant, 工学部, 助手 (00003880)

Co-Investigator(Kenkyū-buntansha) SAITO Hiroshi  Iwate university, Engineering, Assoc. Prof., 工学部, 助教授 (80003846)
Project Period (FY) 1988 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1990: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1989: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1988: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsSelf-terminating laser / Copper vapor laser / Relaxation oscillation / Rate equation / Small-signal analysis / Large-signal approximation / Large-signal analysis / 小信号近似解析 / 数値解析 / レ-ザ出力動作温度依存性 / 金属蒸気レ-ザ / 高効率レ-ザ動作 / 複合金属蒸気 / 低温度蒸気化 / 放電励起レ-ザ / 小信号および大信号解析 / 自爆型スパークギャップスイッチ / 金属蒸気レーザ / 高効率レーザ動作 / 放電励起レーザ / 励起と緩和機構
Research Abstract

The phenomenon of relaxation oscillations has been observed in a variety of lasers, although not so frequently in gas lasers. Relaxation oscillations are not generally observed because the decay rate of the upper laser level is large Nh most gas lasers compared to that in solid-state lasers, semiconductor lasers, and certain other laser systems in which the recovery time of the excited population inversion is substantially longer than the laser cavity decay time. However, in certain circumstances the condition for the relaxation oscillation can be satisfied even in gas lasers because in the metal-vapor laser, the decay rate of the upper laser level varies over a wide range through the resonance-radiation trapping effect owing to the resonance transition between the ground and the upper laser level.
We observed an oscillatory/nonoscillatory waveform in the 510.6nm laser output of a discharge-pumped CuCl vapor laser. An undulation with a time separation of the resonator transit time is frequently observed in the copper vapor laser (CVL) output. However, the undulation observed in our experimentsis not due to this effect. Either oscillatory or nonoscillatory behavior appeared, depending on the operating temperature of the laser.
These behaviors were analyzed based on the rate equations of the idealized 3-level system of the CVL by the following theoretical methods ; where the rate equations for the self-terminating metal vapor laser (ST-MVL) were newly introduced to discuss the transient features.
1. analytical solutions by the small-signal approxination, 2. exact solutions by the numerical integration (by the large-signal theory), 3. analytical and numerical solutions of large-signal approximation (the combined method of the small-signal approximation and the large-signal theory).
These results of the analysis of 1-3 well explained the waveform variation of the CuCl vapor laser output in the experiments.

Report

(4 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • 1988 Annual Research Report

Research Products

(31 results)

All Other

All Publications (31 results)

  • [Publications] 荒川 文晴: "空気吹き付け型高速動作ギャップスイッチの動作特性" 岩手大学工学部研究報告. 41. 29-35 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "On the Relaxation Oscillation in CopperーVapor Lasers" J.Appl.Phys.65ー10. 4068-4070 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Norimitu KUZUMAKI: "Multiline Oscillation of NearーIR and Red Lasers by LongitudinalーDischarge Excitation of Calcium Vapor" Jpn.J.Appl.Phys.28ー10. 2040-2041 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "A Theoretical Consideration of the Waveform in the Cu/CuCl Vapor Laser Output" Jpn.J.Appl.Phys.28ー11. 2321-2322 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 谷口 宏: "銅蒸気レ-ザ-における短光パルス発生の可能性" 分光研究. 39ー1. 26-28 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "Studies of Relaxation Oscillations in Cu/CuCl Vapor Lasers by Comparison of Experiments with Computer Analysis" Jpn.J.Appl.Phys.29ー4. 669-674 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "Jpn.J.Appl.Phys." Descriptive and Theoretical Analysis of the CuCl Vapor Laser Output, 885-886 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "Jpn.J.Appl.Phys." Resonance Phenomenon in a SelfーTerminating Metal Vapor Laser, 2424-2425 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Takeharu ARAKAWA: "Performance Characteristics of the High Repetitive Air-Blown Type Spark-Gap Switch (in Japanese)" Technol. Rep. Iwate Univ.41. 29-35 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "On the Relaxation Oscillation in Copper-Vapor Lasers" J. Appl. Phys.65-10. 4068-4070 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Norimitu KUZUMAKI: "Multiline Oscillation of Near-IR and Red Lasers by Longitudinal-Discharge Excitation of Calcium Vapor" Jpn. J. Appl. Phys.28-10. 2040-2041 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "A Theoretical Consideration of the Waveform in the Cu/CuCl Vapor Laser Output" Jpn. J. Appl. phys.28-11. 2321-2322 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "A Possibility of a Short-Light-Pulse Generation in Copper- Vapor Lasers (in Japanese)" J. Spectroscop. Soc. Jpn.39-1. 26-28 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "Studies of Relaxation oscillations in Cu/CuCl Vapor Lasers by Comparison of Experiments with Computer Analysis" Jpn. J. Appl. Phys.29-4. 669-674 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "Descriptive and Theoretical Analysis of the CuCl Vapor Laser Output" Jpn. J. Appl. Phys.29-5. 885-886 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "Resonance Phenomenon in a Self-Terminating Metal Vapor Laser" Jpn. J. Appl. Phys.29-11. 2424-2425 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hiroshi TANIGUCHI: "Studies of Relaxation Oscillations in Cu/CuCl Vapor Lasers by Comparison of Experiments with Computer Analysis" Jpn.J.Appl.Phys.29ー4. 669-674 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Hiroshi TANIGUCHI: "Descriptive and Theoretical Analysis of the CuCl Vapor Laser Output" Jpn.J.Appl.Phys.29ー5. 885-886 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Hiroshi TANIGUCHI: "Resonance Phenomenon in a SelfーTerminating Metal Vapor Laser" Jpn.J.Appl.Phys.29ー11. 2424-2425 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 荒川丈晴: "空気吹き付け型高速動作ギャップスイッチの動作特性" 岩手大学工学部研究報告. 41. 29-35 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] 谷口宏: "On the Rolaxation Oscillation in Copper Vapor Lasers" Journal of Applied Physics. 65. 4068-4070 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 葛巻教光: "Multiline Oscillation of Near-IR and Red Losers by Longitudinal-Discharge Excitation of Calcium Vapor" Japanese Journal of Applied Physics. 28. 2040-2041 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 谷口宏: "A Theoretical Consideration of the Waveform in the Cu/CuCl Vapor Laser Output" Japanese Journal of Applied Physics. 28. 2321-2322 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 谷口宏: "銅蒸気レ-ザ-における短光パルス発生の可能性" 分光研究. 39. 26-28 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 谷口宏: "Studies on Relaxation Oscillations in Cu/CuCl Vapor Lasers by Comparison of Experiments with Computer Analysis" Japanese Journal of Applied Physics. 29. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 谷口宏: "Descriptive and Theoretical Analysis of the CuCl Vapor Laser Output" Japanese Journal of Applied Physics. 29. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 谷口宏: "A Simple Estimation of the Power Output in the CuCl Vapor Laser by Dischage Pulse-Ecitation" Japanese Journal of Applied Physics.

    • Related Report
      1989 Annual Research Report
  • [Publications] 荒川丈晴: 岩手大学工学部研究報告. 41. 29-35 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 谷口宏: Journal of Applied Physics. May,1. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 谷口宏: Japanese Journal of Applied Physics.

    • Related Report
      1988 Annual Research Report
  • [Publications] 谷口宏: Japanese Journal of Applied Physics.

    • Related Report
      1988 Annual Research Report

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Published: 1988-03-31   Modified: 2016-04-21  

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