Hologram image storage in the methyl-red doped nematic liquid crystal films

Kaiyu Gu; Hongyue Gao; Dewei Gong; Zhongxiang Zhou

doi:10.1117/12.726449

5 March 2007 Hologram image storage in the methyl-red doped nematic liquid crystal films

Kaiyu Gu, Hongyue Gao, Dewei Gong, Zhongxiang Zhou

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65950N (2007) https://doi.org/10.1117/12.726449
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

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.

Citation Download Citation

Kaiyu Gu, Hongyue Gao, Dewei Gong, and Zhongxiang Zhou "Hologram image storage in the methyl-red doped nematic liquid crystal films", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65950N (5 March 2007); https://doi.org/10.1117/12.726449

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