Main > HPArticle > Multi-reference lens-less Fourier-transform holography with Greek-ladder sieve array
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  • Manuscript Accepted: Nov. 1, 2019

    Online Published: Nov. 2, 2019

Chinese Optics Letters, 2020, Vol. 18, Issue 2, pp.

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

Xie Jing, Zhang Junyong, Pan Xue, Zhou Shenlei, Ma Weixin

Author Affiliations

  • Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences
  • Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences ShangHai, CN 201800

Abstract

Lens-less Fourier-transform holography has been actively studied because of its simple optical structure and its single-shot recording. However, low-contrast interferogram between the reference and object waves limits its signal to noise ratio. Here, multi-reference lens-less Fourier-transform holography with Greek-ladder sieve array is proposed in 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 lens, this system has enormous potential in imaging and especially in extreme ultraviolet and soft X-ray holography.

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