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Dye-Induced Enhancement of Optical Nonlinearity in Liquid Crystals and Ordinary Liquids

 

作者: X. Zhuang,   R. Muenster,   M. Jarasch,   Y.R. Shen,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 1998）
卷期: Volume 321, issue 1  

页码: 165-175

 

ISSN:1058-725X

 

年代: 1998

 

DOI:10.1080/10587259808025084

 

出版商: Taylor & Francis Group

 

关键词: liquid crystals;dye;optical Kerr effect;Fréedericktz transition;optical nonlinearity;guest-host interaction

 

数据来源: Taylor

 

摘要:

Optical nonlinearity of liquid crystals (LC) in the isotropic phase can be enhanced by one order of magnitude by dissolving 0.1% of anthraquinone dye in the LC. The enhancement decreases when the LC transforms into the nematic phase. The same guest-host effect also exists in non-LC liquids. It can be explained by a model based on selective excitation of dye molecules and the change of guest-host interaction induced by optical excitations of the dye.

 

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