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Michelson-interferometric-configuration-based Incoherent Digital Holography with a Geometric Phase Shifter
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- Authors
- Kihong Choi, Keehoon Hong, Joongki Park, Sung-Wook Min
- Issue Date
- 2020-03
- Citation
- Applied Optics, v.59, no.7, pp.1948-1953
- ISSN
- 1559-128X
- Publisher
- Optical Society of America (OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- The phase-shifting method is a simple and efficient approach to extract complex hologram information free of bias and twin-image noise. In this study, the geometric phase-shifting method is utilized for a self-interference incoherent digital holographic recording system based on theMichelson-type interferometer. The phase-shifting module consists of a horizontal polarizer, and two achromatic quarter-wave plates are employed inside the interferometer, replacing conventional phase-shifting devices, such as the piezo-actuated mirror. Since the phase-shifting amount of the introduced method herein is theoretical, regardless of the input wavelength, the simultaneous recording of step-wise phase-shifted interferograms for different color channels is available. Therefore, the multi-color hologram recording is achieved with fewer numbers of exposures. The demonstration of multi-color hologram recording and reconstruction are presented to validate the proposed idea.
- KSP Keywords
- Color channels, Efficient approach, Image noise, Multi-color, Phase Shifter, Phase-shifted, Phase-shifting method, Quarter-wave, Self-interference, Simultaneous recording, color hologram