Detection of phase transitions in liquid crystals using the mirage effect

K. Rajasree; V. Vidyalal; P. Radhakrishnan; V. P.N. Nampoori; C. P.G. Vallabhan; A. K. George

doi:10.1080/02678299508036608

Detection of phase transitions in liquid crystals using the mirage effect

K. Rajasree, V. Vidyalal, P. Radhakrishnan, V. P.N. Nampoori, C. P.G. Vallabhan, A. K. George^*

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	167-169
Number of pages	3
Journal	Liquid Crystals
Volume	18
Issue number	1
DOIs	https://doi.org/10.1080/02678299508036608
Publication status	Published - Jan 1995

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1080/02678299508036608

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title = "Detection of phase transitions in liquid crystals using the mirage effect",

abstract = "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.",

author = "K. Rajasree and V. Vidyalal and P. Radhakrishnan and Nampoori, {V. P.N.} and Vallabhan, {C. P.G.} and George, {A. K.}",

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AU - Vallabhan, C. P.G.

AU - George, A. K.

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N2 - 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.

AB - 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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Detection of phase transitions in liquid crystals using the mirage effect

Abstract

ASJC Scopus subject areas

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