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Proceedings Paper

Hologram image storage in the methyl-red doped nematic liquid crystal films
Author(s): Kaiyu Gu; Hongyue Gao; Dewei Gong; Zhongxiang Zhou
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Paper Abstract

In this paper, the nematic liquid crystal 5CB doped with 1wt% Methyl-Red was prepared. Due to optical excitation, cis-trans isomerous effect of Methyl-Red depended on the polarization direction of the incident light, so we chose Ar+ laser as grating recording lights. When the sample thickness is 32&mgr;m, the angle between two incident beams is 2°, the two incident beams with the equal intensity is 85mW/cm2, ambient temperature is 22°C, and He-Ne laser with polarization direction normal to the dirction of grating wave vector as read-out light, the first order diffraction efficiencies of two-wave coupling were measured. The hologram images were storage and reconstruction in the samples. The theoretical analysis is given to the experimental results.

Paper Details

Date Published: 5 March 2007
PDF: 5 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65950N (5 March 2007); doi: 10.1117/12.726449
Show Author Affiliations
Kaiyu Gu, Harbin Institute of Technology (China)
Hongyue Gao, Harbin Institute of Technology (China)
Dewei Gong, Harbin Institute of Technology (China)
Zhongxiang Zhou, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III
Yuri N. Kulchin; Jinping Ou; Oleg B. Vitrik; Zhi Zhou, Editor(s)

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