| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 봄 (04/12 ~ 04/13, 서울대학교) |
| 권호 | 27권 1호, p.152 |
| 발표분야 | 분자전자 부문위원회 |
| 제목 | Simultaneous Angular Multiplexing Recording of Holographic Polymer Dispersed Liquid Crystal |
| 초록 | Multiplexing hologram may be stored in volume-holographic media through angular, phased-encoded, phase-and-amplitude-encoded, wavelength, spatial multiplexing or by more than one of these technique in combination. Angular multiplexing requires accurate registration of each reference angle for hologram replay. Simultaneously exposure of material to three coherent laser beams gave the resulting three-beam interference pattern records and three graphic grating HPDLC. This allows the reconstruction of two object beams upon illumination with a reference beam. We used a binary monomer system composed of dipentaerythritol hydroxypentaacrylate/ N-vinylpyrrolidone(DPHPA/NVP)=5/1, trimethylolpropanetriacrylate/N-vinylpyrrolidone(TMPTA/NVP)=8/1 by weight. Gratings were written by irradiation an Ar-laser(λ=514nm)at various intensities(30-100mwcm-2) on monomer/liquid crystal composition. The other variable examined in detail include cell gap, intersection angle of the three beams outside the film, which narrows angle selectivity. |
| 저자 | 김은희1, 김병규*2 |
| 소속 | 1부산대, 2*부산대 |
| 키워드 | |
