Optical Communication Technology, Volume. 48, Issue 5, 91(2024)
Structural morphology measurement based on lens-less Fourier transform digital holography
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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Received: Apr. 15, 2024
Accepted: Jan. 16, 2025
Published Online: Jan. 16, 2025
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