Detection of phase transitions in liquid crystals using the mirage effect

K. Rajasree Physics Department, Cochin University of Science and Technology, Cochin, 682 022, Kerala, India

V. Vidyalal Physics Department, Cochin University of Science and Technology, Cochin, 682 022, Kerala, India

P. Radhakrishnan Physics Department, Cochin University of Science and Technology, Cochin, 682 022, Kerala, India

V. P. N. Nampoori Physics Department, Cochin University of Science and Technology, Cochin, 682 022, Kerala, India

C. P. G. Vallabhan Physics Department, Cochin University of Science and Technology, Cochin, 682 022, Kerala, India

A. K. George Physics Department, Sultan Qaboos University, P. O. Box 36, Postal Code 123, Muscat, Sultanate of Oman

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.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Detection of phase transitions in liquid crystals using the mirage effect

Information for

Open access

Opportunities

Help and information

Detection of phase transitions in liquid crystals using the mirage effect

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature