포토폴리머에서 압착에 의한 중심파장 이동과 광학특성 안정화 실험
Center wavelength shift and the optical property stabilization in photopolymer according to the press
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Abstract
The playback wavelength shift and the optical property stabilization of the reflection type photopolymer OmniDex film are studied as a function of pressure. As the center wavelength is changed from 632 nm to 482 nm, the bandwidth is 27% broadened and the diffraction efficiency deviation maintained lower than 10%. These results show that the proposed color tuning method minimizes the change of optical properties more than 50%compared with the diffusion-based method as the center wavelength changed from 511 nm to 630 nm. The press-based color tuning method shows that it could be used to make holographic optical elements that operate at wavelengths where lasers are not readily available for reflection type holographic recording.
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