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Volume 29 Issue 6
Sep.  2013
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A phase detection method based on diffraction pattern

  • Received Date: 2004-09-27
    Accepted Date: 2004-11-05
  • Based on the principle of the double hemicycle diffraction,by giving each of them different discrepancy,the phase can be detected with the diffraction patterns.The experimental results are compared with the simulation results and both of them is consistent,which shows that the method can efficiently obtain the phase information.Sequentially it gives a simple and effective method for accurate phase detection of the segmented mirrors of a huge combined mirror.
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  • [1] 杨国光,宋菲君.高等物理光学[M].合肥:中国科学技术大学出版社,1991.85~95.

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    CHANAN G A,TROY M,SIRKO E.Phase discontinuity sensing:a method for phasing segmented mirrors in the infrared[J].Appl Opt,1999,38(2):704~713.
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    CHANAN G A,TROY M,DEKENS F G.Phasing the mirror segments of the Keck telescopes:the broadband phasing algorithm[J].Appl Opt,1998,37(1):140~155.
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    CHANAN G A,TROY M,DEKENS F G.Phasing the mirror segments of the Keck telescopes Ⅱ:the narrowband phasing algorithm[J].Appl Opt,2000,39(9):4706~4714.
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    TROY M,CHANAN G A.Diffraction effect from giant segmentedmirror telescopes[J].Proc SPIE,2003,4840:81~92.
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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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A phase detection method based on diffraction pattern

  • 1. Institute of Photo Electricity, National University of Defense Technology, Changsha 410073, China

Abstract: Based on the principle of the double hemicycle diffraction,by giving each of them different discrepancy,the phase can be detected with the diffraction patterns.The experimental results are compared with the simulation results and both of them is consistent,which shows that the method can efficiently obtain the phase information.Sequentially it gives a simple and effective method for accurate phase detection of the segmented mirrors of a huge combined mirror.

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