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Laser‐induced gratings in nematic/cholesteric mixtures

 

作者: He´ctor Espinet,   Michael Lesiecki,   Michael Ramsburg,  

 

期刊: Applied Physics Letters  （AIP Available online 1987）
卷期: Volume 50, issue 26  

页码: 1924-1926

 

ISSN:0003-6951

 

年代: 1987

 

DOI:10.1063/1.97688

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Laser‐induced gratings are produced in thin films of mixtures of nematic and cholesteric liquid crystals doped with a dye. A transient grating regime is found which decays on the order of seconds; additionally, a ‘‘persistent’’ grating with lifetimes up to 16 h has been found. Mechanisms for creation and decay are discussed.

 

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