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  • Received: Sep. 24, 2019

    Accepted: Nov. 1, 2019

    Posted: Dec. 26, 2019

    Published Online: Dec. 30, 2019

    The Author Email: Junyong Zhang (zhangjy829@siom.ac.cn)

    DOI: 10.3788/COL202018.020901

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    Jing Xie, Junyong Zhang, Xue Pan, Shenlei Zhou, Weixin Ma. Multi-reference lens-less Fourier-transform holography with a Greek-ladder sieve array[J]. Chinese Optics Letters, 2020, 18(2): 020901

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Chinese Optics Letters, Vol. 18, Issue 2, 020901 (2020)

Multi-reference lens-less Fourier-transform holography with a Greek-ladder sieve array

Jing Xie1, Junyong Zhang1,*, Xue Pan1, Shenlei Zhou1, and Weixin Ma2

Author Affiliations

  • 1Key Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800, China

Abstract

Lens-less Fourier-transform holography has been actively studied because of its simple optical structure and its single-shot recording. However, a low-contrast interferogram between the reference and object waves limits its signal to noise ratio. Here, multi-reference lens-less Fourier-transform holography with a Greek-ladder sieve array is proposed in the experiment and demonstrated effectively to improve the signal to noise ratio. The key technique in our proposed method is a Greek-ladder sieve array, which acts as not only a wave-front modulator but also a beam splitter. With advantages of the common path, single shot, and no need for a lens, this system has enormous potential in imaging and especially in extreme ultraviolet and soft X-ray holography.

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