Cholesteric gratings with field-controlled period
作者:
D. Subacius,
S. V. Shiyanovskii,
Ph. Bos,
O. D. Lavrentovich,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 71,
issue 23
页码: 3323-3325
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.120325
出版商: AIP
数据来源: AIP
摘要:
Diffractive gratings with period varied by an electric field are developed using a cholesteric liquid crystal confined between two transparent electrodes with unidirectionally treated alignment layers. In the initial state (zero field), the cholesteric layers are parallel to the cell planes. The electric field creates an in-plane modulated structure of variable period. Diffraction regimes of both Raman-Nath and Bragg types are demonstrated. ©1997 American Institute of Physics.
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