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Active wavefront control of high power lasers

Research Project

Project/Area Number 07555016
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Applied optics/Quantum optical engineering
Research InstitutionOsaka University

Principal Investigator

KATO Yoshiaki  Institute of Laser Engineering, Prof., レーザー核融合研究センター, 教授 (30093397)

Co-Investigator(Kenkyū-buntansha) TOKUMURA Keiu  Nalux Inc., Researcher, 開発部, 主任研究員
JITSUNO Takahisa  Institute of Laser Engineering, Assoc.Prof., レーザー核融合研究センター, 助教授 (30162811)
NAKATSUKA Masahiro  Institute of Laser Engineering, Prof., レーザー核融合研究センター, 教授 (20088462)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥10,000,000 (Direct Cost: ¥10,000,000)
Fiscal Year 1997: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1996: ¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 1995: ¥4,900,000 (Direct Cost: ¥4,900,000)
Keywordslaser / optics / deformable mirror / adaptive optics / X-ray laser / Shack-Hartmann method / 波面制御 / 可変形ミラー / 集光 / 位相回復 / レーザー集光 / キノフォルム / シャック・ハルトマン法
Research Abstract

Deformable mirrors were developed in order to control the wavefront of the laser beams and to control the laser beam patterns at the focus.
Major results obtained in this research are written below.
1) With the two dimensional Shack-Hartmann method, which has been developed, in this research the wavefront of the laser beam was measured with an accuracy of lambda/20.
2) An actively controlled deformable mirror has been developed and optimum conditions for the substrate and the piezo-driver have been determined.
3) A new line-focusing optics using a deformable mirror for x-ray laser experiment has been proposed and experimentally demonstrated.
4) The far-field pattern of the laser beam has been controlled to arbitary shape.
5) A new algorithm for controlling the far-field pattern has been developed.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] G.Yoon,et al.,: "Enhancement of X-ray lasing due to wavefront correction of line-focusing optics with a large aperture deformable mirror" Appl.Phys.Letters. 72・22. 2785-2787 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Kato,et al.: "Generation of intense x-ray laser radiation at 8nm in Ni-like Nd ions" SPIE. 3156. 2-10 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.Kodama,et al: "Study of laser-imploded core plasmas with an advanced Kirkpatrick-Baez x-ray microscope" Rev.Sci.Inst.68・1. 824-827 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.Kodam.et al.: "Study of laser-hole boring into overdense plasmas" Phys.Rev.Lett.77-24. 4906-4909 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] G.Yoon et al.: "High aspect ratio line focus for an x-ray laser by a deformable mirror" Appl.Opt.36・4. 847-852 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Kato,et al.: "Fast ignition and related plasma physics issues with high intensity lasers" Plasma Phys.Controlled Fusion. 39・5A. A145-A151 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] G.Yoon, et al.: "Enhancement of X-ray lasing due to wavefront correction of line-focusing optics with a large aperture deformable mirror" Appl.Phys.Letters. 72 [22]. 2785-2787 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Kato, et al.: "Generation of intense x-ray laser radiation at 8nm in Ni-like Nd ions" SPIE. 3156. 2-10 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.Kodama, et al.: "Study of laser-imploded core plasmas with an advanced Kirkpatrick-Baez x-ray microscope" Rev.Sci.Inst.68 [1]. 824-827 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.Kodama, et al.: "Study of laser-hole boring into overdense plasmas" Phys.Rev.Lett.77 [24]. 4906-4909 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] G.Yoon et al.: "High aspect ratio line focus for an x-ray laser by a deformable mirror" Appl.Opt.36 [4]. 847-852 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Kato, et al.: "Fast ignition and related plasma physics issues with high intensity lasers" Plasma Phys.and Controlled Fusion. 39 [5A]. A145-A151 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] G.Y.Yoon, et al.: "Shack-Hartmann wavefront measurement with a large F-number plastic microlens array" Applied Optics. 35・1. 188-192 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] G.Y.Yoon, et al.: "High-aspect ratio line focus for an x-ray laser by a deformable mirror" Applied Optics. 36・4. 847-852 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kato, et al.: "Generation of intense x-ray laser radiation at 8nm in Ni-like Nd ions" SPIE. 3156. 2-10 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] G.Y.Yoon, et al.: "Enhancement of x-ray lasing due to wavefront correction at line focusing optics with a large aperture deformable mirror" Applied Optics. (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] G.Y.Yoon, et al.: "Wavefront designing algorithm for shaping a quasi far-field pattern" Applied Optics. (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] G.Y.Yoon,T.Jitsuno,Y.Kato,and M.Nakatsuka: "High-aspect-ratio line focus for an x-ray laser by deformable mirror" Applied Optics. Vol.36,No.4. 847-852 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] G.Y.Yoon,T.Jitsuno,M.Nakatsuka,and Y.Kato: "Wavefront correction of laser beam using a deformable mirror with a large aperture" SPIE proceedings. Vol.2778. 269-270 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] G.Y.Yoon,T.Jitsuno,M.Nakatsuka,and Y.kato: "Development of a large aperture deformable mirror for the wavefront control" SPIE proceedings. (発売予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] 実野孝久: "シャックハルトマン計測と核融合レーザーにおけるアダプティブ光学系" 電気学会 光・電子デバイス研究会資料. OQD-94-5. 33-38 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] G.Y.Yoon: "Beam profile control of line focus for x-ray laser experiment" SPZE Proceedings. 2633. 541-546 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] G.Y.Yoon: "Laser beam shaping by wavetront control using deformable mirror" Proc.3rd Symp,on laser Spectroscopy. 3. 221-229 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2025-11-19  

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