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Detection of phase transitions in liquid crystals using the mirage effect

 

作者: K. Rajasree,   V. Vidyalal,   P. Radhakrishnan,   V.P. N. Nampoori,   C.P. G. Vallabhan,   A.K. George,  

 

期刊: Liquid Crystals  （Taylor Available online 1995）
卷期: Volume 18, issue 1  

页码: 167-169

 

ISSN:0267-8292

 

年代: 1995

 

DOI:10.1080/02678299508036608

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

We describe here a novel technique which makes use of the photothermal mirage effect to study phase transition in liquid crystals. Results of the measurements done with two nematic liquid crystals are given to illustrate this technique. We observe an enhancement in the signal amplitude during phase change which is due to the large magnitude of the refractive index gradient developing at the transition temperature.

 

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