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학술지 Michelson-interferometric-configuration-based Incoherent Digital Holography with a Geometric Phase Shifter
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저자
최기홍, 홍기훈, 박중기, 민성욱
발행일
202003
출처
Applied Optics, v.59 no.7, pp.1948-1953
ISSN
1559-128X
출판사
Optical Society of America (OSA)
DOI
https://dx.doi.org/10.1364/AO.383118
협약과제
19HR3700, [전문연구실] 홀로그램 영상 서비스를 위한 Holo-TV 핵심 기술 개발, 박중기
초록
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 제안 키워드
Color channels, Efficient approach, Incoherent digital holography, Multi-color, Phase Shifter, Phase-shifted, Phase-shifting method, Quarter-wave, Self-interference, Simultaneous recording, color hologram