Non linear optical properties of banana shaped liquid crystals

Nagappa and Mahadeva, J. and Somashekar, R. and Yalemaggad, C. V. and Umesh, G. and Manjunatha, K. B. (2011) Non linear optical properties of banana shaped liquid crystals. MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 540 (SI). pp. 88-93. ISSN 1542-1406

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Abstract

We report the nonlinear absorption and refraction of banana shaped liquid crystal, namely 1,3-phynelyne bis N-(2-hydroxy-4-n-decyloxy-benzylidene)-4'-aminobenzoate] using Z-scan technique. The measurements were carried out using a Q-switched, frequency doubled Nd:YAG laser producing 7 nanosecond laser pulses at 532 nm. The Z-scan result shows that the compound exhibits negative non-linearity. The nonlinear refractive index and nonlinear absorption coefficient of this compound were found to be -1.283 x 10(-11) esu and 2.232 cm/GW, respectively. The real and imaginary parts of the third-order nonlinear optical susceptibility were of the order of 10(-13) esu. The results suggest that these molecules are potential nonlinear optical materials for device applications.

Item Type:	Article
Additional Information:	23rd International Liquid Crystal Conference (ILCC 2010), Jagiellonian Univ, Krakow, POLAND, JUL 11-16, 2010
Uncontrolled Keywords:	Banana shaped liquid crystal; nonlinear optical property; Q-switching; Z-scan
Subjects:	D Physical Science > Physics
Divisions:	Department of > Physics
Depositing User:	Users 23 not found.
Date Deposited:	18 Jun 2019 10:12
Last Modified:	18 Jun 2019 10:12
URI:	http://eprints.uni-mysore.ac.in/id/eprint/2598

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