P‐89: Digital Holography Microscope with liquid crystal phase modulator

We proposed a DHM system with improved resolution property by using liquid crystal (LC) phase modulator. The LC phase modulator can stably control the phase modulation characteristics of the interference pattern and implements the four‐step phase shifting scheme. The proposed DHM system showed a fou...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2023-06, Vol.54 (1), p.1388-1390
Main Authors: Joo, Kyung-II, Lim, Sungjin, Lim, Ki-Dong, Lee, Jin Su, Park, Min-Kyu, Yoon, Seon Kyu, Lee, Kwang-Hoon
Format: Article
Language:English
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Summary:We proposed a DHM system with improved resolution property by using liquid crystal (LC) phase modulator. The LC phase modulator can stably control the phase modulation characteristics of the interference pattern and implements the four‐step phase shifting scheme. The proposed DHM system showed a four‐fold improvement in resolution compared to the conventional DHM with polarized camera. Finally, it was confirmed that the modulation transfer function (MTF) value was improved 2 times at the resolution target of 105 lines/mm.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.16843