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Volume 25 Issue 1
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2001 >  25(1): 70-72

Citation:
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Focal length measurement by calculating Fourier transform spectrum interference fringes of symmetric double circular apertures

  • 1.

    National Laboratory of Laser Technology, HUST, Wuhan, 430074;

  • 2.

    Northwestern Polytechnical University, Xi'an, 710072

  • 4.

    Department of Physics, Yantai Teachers' College, Yantai, 264025

  • Received Date: 1999-07-26
    Accepted Date: 1999-12-22
  • A method of focal length measurement by calculating Fourier transform spectrum interference fringes of symmetric double circular apertures with small distance is presented.The setup is simple with high accuracy.The principle is described and the error is analyzed.The consistent experimental results are also given in the paper.
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  • [1] 孙桂林,刘振山.光学技术,1992;(2):31
    [2] 王玉荣,蔡履中.光学技术,1998;(2):15
    [美] 杨振寰著,母国光等译.光学信息处理.天津:南开大学出版社,1986
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Focal length measurement by calculating Fourier transform spectrum interference fringes of symmetric double circular apertures

  • 1. National Laboratory of Laser Technology, HUST, Wuhan, 430074;
  • 2. Northwestern Polytechnical University, Xi'an, 710072
  • 4. Department of Physics, Yantai Teachers' College, Yantai, 264025
  • Received Date: 1999-07-26
  • Accepted Date: 1999-12-22
  • Available Online: 2001-01-25

Abstract: A method of focal length measurement by calculating Fourier transform spectrum interference fringes of symmetric double circular apertures with small distance is presented.The setup is simple with high accuracy.The principle is described and the error is analyzed.The consistent experimental results are also given in the paper.

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