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

Research output: Contribution to journalArticlepeer-review


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 languageEnglish
Pages (from-to)167-169
Number of pages3
JournalLiquid Crystals
Issue number1
Publication statusPublished - Jan 1995

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics


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