Focusing optics for a crescent-shaped beam consisting of an elliptic mirror and a parabolic mirror

9 References
  • O'HASI Hiloaki
    Department of Electrical and Electronic Engineering, Faculty of Engineering, Okayama University
  • WANG Ming
    Department of Electrical and Electronic Engineering, Faculty of Engineering, Okayama University
  • WADA Osami
    Department of Electrical and Electronic Engineering, Faculty of Engineering, Okayama University
  • KOGA Ryuji
    Department of Electrical and Electronic Engineering, Faculty of Engineering, Okayama University

Bibliographic Information

Other Title
  • 楕円・放物筒面鏡を用いた円弧状ビームの直接集光

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Description

A focusing optics consisting of an elliptic mirror and a parabolic mirror is proposed to focus the crescent-shaped blue laser beam radiated from the channel waveguide Cerenkov SHG. One of the merits of this mirror focusing optics is that the direction of the focused beam can be set in accordance with the practical usage. By using the ray tracing method, RMS aberration of this optics was figured to be less than 0.07λ(Marechal's criterion). The calculation based on the ray tracing method and the integral theorem of Kirchhoff for the focused beam reveals that the beam width obtained in the designed mirror optics is very near the desired one with deviation less than 1%. The anisotropic effect of the SHG device was compensated by moving the parabolic mirror along it's symmetric axis.

Journal

  • Technical report of IEICE. OPE

    Technical report of IEICE. OPE 95 (459), 13-18, 1996-01-18

    The Institute of Electronics, Information and Communication Engineers

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Keywords

Details 詳細情報について

  • CRID
    1570572702490941184
  • NII Article ID
    110003302810
  • NII Book ID
    AN10442691
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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