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Proceedings Paper

Study on holographic image storage and reconstruction in azo-dye-doped liquid-crystal films
Author(s): Hongyue Gao; Zhongxiang Zhou
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Paper Abstract

We investigate holographic image storage and reconstruction in the planar Disperse Red 1 (DR1)-doped liquid-crystal films. The nematic liquid crystal 5CB cells doped with Disperse Red 1 (DR1) 1%, 2%, 3%, 4% and 5% by weight are presented. And there is no an electronic field applied to the films. The diffraction efficiency of the probe beam increases with the increase of the dye concentration. The absorptivity of the liquid crystal cell as a function of the angle between the light polarization direction and the liquid-crystal molecular director axis for five different DR1 concentrations is measured at the wavelength of 488nm. We find that the +1st-order and the -1st-order reconstructed images are in centrosymmetric pattern, i.e. they are inverted, and images with readout image quality can be reconstructed from transient hologram recorded in this medium with very short response time of ~10ms. These experimental results show that this medium can be used in optical reconstruction, holographic image reversion or holographic image display.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65950W (5 March 2007); doi: 10.1117/12.725704
Show Author Affiliations
Hongyue Gao, 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

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