Use of mirage effect for the detection of phase transitions in liquid crystals

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

doi:10.1016/S0167-577X(98)00004-4

Use of mirage effect for the detection of phase transitions in liquid crystals

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

9 Citations (Scopus)

Abstract

The phenomenon of single beam mirage effect, otherwise known as photothermal deflection (PTD) effect using a He-Ne laser beam has been employed to detect phase transitions in some liquid crystals. It has been observed that anomalous changes in amplitude occur in the PTD signal level near the transition temperature. The experimental details and the results of measurements made in liquid crystals E₈, M₂₁ and M24 are given in this paper.

Original language	English
Pages (from-to)	76-80
Number of pages	5
Journal	Materials Letters
Volume	36
Issue number	1-4
DOIs	https://doi.org/10.1016/S0167-577X(98)00004-4
Publication status	Published - Jul 1998

Keywords

Liquid crystals
Mirage effect
Nematic and smectic phases
Photothermal deflection

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/S0167-577X(98)00004-4

Cite this

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title = "Use of mirage effect for the detection of phase transitions in liquid crystals",

abstract = "The phenomenon of single beam mirage effect, otherwise known as photothermal deflection (PTD) effect using a He-Ne laser beam has been employed to detect phase transitions in some liquid crystals. It has been observed that anomalous changes in amplitude occur in the PTD signal level near the transition temperature. The experimental details and the results of measurements made in liquid crystals E8, M21 and M24 are given in this paper.",

keywords = "Liquid crystals, Mirage effect, Nematic and smectic phases, Photothermal deflection",

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

note = "Funding Information: The authors are grateful to the Department of Science and Technology (GOI) and MHRD for financial assistance.",

year = "1998",

month = jul,

doi = "10.1016/S0167-577X(98)00004-4",

language = "English",

volume = "36",

pages = "76--80",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

number = "1-4",

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TY - JOUR

T1 - Use of mirage effect for the detection of phase transitions in liquid crystals

AU - Rajasree, K.

AU - Vidyalal, V.

AU - Radhakrishnan, P.

AU - Nampoori, V. P.N.

AU - Vallabhan, C. P.G.

AU - George, A. K.

N1 - Funding Information: The authors are grateful to the Department of Science and Technology (GOI) and MHRD for financial assistance.

PY - 1998/7

Y1 - 1998/7

N2 - The phenomenon of single beam mirage effect, otherwise known as photothermal deflection (PTD) effect using a He-Ne laser beam has been employed to detect phase transitions in some liquid crystals. It has been observed that anomalous changes in amplitude occur in the PTD signal level near the transition temperature. The experimental details and the results of measurements made in liquid crystals E8, M21 and M24 are given in this paper.

AB - The phenomenon of single beam mirage effect, otherwise known as photothermal deflection (PTD) effect using a He-Ne laser beam has been employed to detect phase transitions in some liquid crystals. It has been observed that anomalous changes in amplitude occur in the PTD signal level near the transition temperature. The experimental details and the results of measurements made in liquid crystals E8, M21 and M24 are given in this paper.

KW - Liquid crystals

KW - Mirage effect

KW - Nematic and smectic phases

KW - Photothermal deflection

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U2 - 10.1016/S0167-577X(98)00004-4

DO - 10.1016/S0167-577X(98)00004-4

M3 - Article

AN - SCOPUS:0032123248

SN - 0167-577X

VL - 36

SP - 76

EP - 80

JO - Materials Letters

JF - Materials Letters

IS - 1-4

ER -

Use of mirage effect for the detection of phase transitions in liquid crystals

Abstract

Keywords

ASJC Scopus subject areas

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