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19 December 2022 Single-shot dual-wavelength lensless digital holography using a dichroic mirror
Dingnan Deng, Bingfu Huang, Qijian Tang, Wenqi He
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Proceedings Volume 12318, Holography, Diffractive Optics, and Applications XII; 123181P (2022) https://doi.org/10.1117/12.2642228
Event: SPIE/COS Photonics Asia, 2022, Online Only
Abstract
A single-shot dual-wavelength lensless digital holography based on a dichroic mirror is presented to achieve quantitative phase imaging. The lensless digital holography is designed by a wavefront division transmission configuration with only a plane mirror and a beam splitter. By merely adding a dichroic mirror between plane mirror and beam splitter in lensless transmission digital holography, the propagation direction of two reference waves for different wavelengths can be adjusted separately by dichroic mirror and plane mirror. Therefore, a multiplexed hologram with different fringe directions for two wavelengths can be simultaneously obtained. Our technique is capable of real-time wavelength-multiplexing with minimum optical element and system modification.
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Dingnan Deng, Bingfu Huang, Qijian Tang, and Wenqi He "Single-shot dual-wavelength lensless digital holography using a dichroic mirror", Proc. SPIE 12318, Holography, Diffractive Optics, and Applications XII, 123181P (19 December 2022); https://doi.org/10.1117/12.2642228
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KEYWORDS
Dichroic mirrors
Digital holography
Multiplexing
Phase imaging
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