Photorefractive effects in ZnO nanorod doped liquid crystal cell

Yubing Guo; Yonghai Chen; Ying Xiang; Shengchun Qu; Zhanguo Wang

doi:10.1364/AO.50.001101

Photorefractive effects in ZnO nanorod doped liquid crystal cell

Yubing Guo, Yonghai Chen^*, Ying Xiang, Shengchun Qu, Zhanguo Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

In a forced light scattering experiment, after the diffraction efficiency arrives to a stable state, both direct current (DC) voltage and two writing beams are turned off, and then by reapplication of the DC voltage we observed a peak.We provide an explanation based on periodically changed anchoring energy and also discuss the evolution of diffraction efficiency under different grating constants, laser polarization, and the direction of the optical axis of a liquid crystal cell. Experiment results show that photo-introduced charge density is nearly in proportion to the intensity of writing beams.

Original language	English
Pages (from-to)	1101-1104
Number of pages	4
Journal	Applied Optics
Volume	50
Issue number	8
DOIs	https://doi.org/10.1364/AO.50.001101
Publication status	Published - 10 Mar 2011
Externally published	Yes

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AU - Guo, Yubing

AU - Chen, Yonghai

AU - Xiang, Ying

AU - Qu, Shengchun

AU - Wang, Zhanguo

PY - 2011/3/10

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AB - In a forced light scattering experiment, after the diffraction efficiency arrives to a stable state, both direct current (DC) voltage and two writing beams are turned off, and then by reapplication of the DC voltage we observed a peak.We provide an explanation based on periodically changed anchoring energy and also discuss the evolution of diffraction efficiency under different grating constants, laser polarization, and the direction of the optical axis of a liquid crystal cell. Experiment results show that photo-introduced charge density is nearly in proportion to the intensity of writing beams.

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Photorefractive effects in ZnO nanorod doped liquid crystal cell

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