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Multiwavelength parallel phase-shifting digital holography using angular multiplexing

Tatsuki Tahara, Yasunori Ito, Yonghee Lee, Peng Xia, Junichi Inoue, Yasuhiro Awatsuji, Kenzo Nishio, Shogo Ura, Toshihiro Kubota, and Osamu Matoba

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Abstract

We propose a single-shot digital holography for recording multiwavelength and complex amplitude information by using a single monochromatic image sensor. The zeroth-order wave and conjugate image in each wavelength are removed from a recorded single hologram by applying parallel phase-shifting interferometry. Angular multiplexing is utilized to record the complex amplitude of an object wave in each wavelength separately, and no color filter is required. The effectiveness of the proposed technique was experimentally verified.

© 2013 Optical Society of America

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