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학술지 Fourier Rainbow Holography
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저자
Tomasz Kozacki, Maksymilian Chlipala, 추현곤
발행일
201809
출처
Optics Express, v.26 no.19, pp.25086-25097
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.26.025086
협약과제
18MF1200, 디지털 홀로그래픽 테이블탑형 단말 기술 개발, 김진웅
초록
We present Fourier rainbow holographic imaging approach. It involves standard laser holographic recording and novel horizontal parallax only holographic display. In the display, the rainbow effect is introduced in an illumination module by high-frequency diffraction grating and white light LED source. The display is addressed by Fourier rainbow digital hologram (FRDH) encoding defocused object field with removed spatial frequency components in one direction by hologram slitting and without spherical phase factor. Theoretically and experimentally it is shown that the method extends the viewing zone of the classical viewing window display in vertical and longitudinal directions, thus the comfort of observation is improved. It is also numerically and experimentally validated that the numerical slitting applied within FRDH generation improves reconstruction depth of the display, here up to 400 mm.
KSP 제안 키워드
Diffraction grating, Digital hologram, Frequency components, High Frequency(HF), Holographic imaging, Horizontal parallax, LED source, Laser holographic, Phase factor, Spatial Frequency, White-light led