Optical Communication Technology, Volume. 48, Issue 5, 91(2024)

Structural morphology measurement based on lens-less Fourier transform digital holography

ZHANG Yaya1...2, DUAN Junping2 and ZHANG Binzhen2 |Show fewer author(s)
Author Affiliations
  • 1Shanxi Institute of Science and Technology, Jincheng Shanxi 048000, China
  • 2Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
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    In order to accurately measure the morphology information of objects, an imaging system based on lensless Fourier transform digital holography is proposed. Firstly, the imaging principle of lensless Fourier transform digital holography was analyzed, and a tilt plane correction method was introduced. Then, an imaging system platform was built and the imaging performance of the system was verified through experiments. The experimental results show that the actual resolution of the system is 57.02 lp/mm. The relative error of the measurement results is only 3.95%, fully verifying the excellent imaging performance of the system.

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    ZHANG Yaya, DUAN Junping, ZHANG Binzhen. Structural morphology measurement based on lens-less Fourier transform digital holography[J]. Optical Communication Technology, 2024, 48(5): 91

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    Paper Information

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    Received: Apr. 15, 2024

    Accepted: Jan. 16, 2025

    Published Online: Jan. 16, 2025

    The Author Email:

    DOI:10.13921/j.cnki.issn1002-5561.2024.05.015

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