Crucial influence of the twist deformation on degenerate four‐wave mixing process in homeotropically aligned nematic liquid crystals
作者:
Shu‐Hsia Chen,
Chen‐Lung Kuo,
期刊:
Applied Physics Letters
(AIP Available online 1989)
卷期:
Volume 55,
issue 18
页码: 1820-1822
ISSN:0003-6951
年代: 1989
DOI:10.1063/1.102176
出版商: AIP
数据来源: AIP
摘要:
The diffraction efficiency suppression and peak shifting from the Freedericksz threshold voltage are predicted for degenerate four‐wave mixing process in a low‐frequency ac voltage‐biased homeotropically aligned nematic liquid crystal film. The crucial factor is the twist deformation in the induced phase grating. Significant amounts of diffraction efficiency suppression and peak shift are shown both in numerical and experimental results.
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