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https://idr.l3.nitk.ac.in/jspui/handle/123456789/8567
Title: | Non linear optical properties of banana shaped liquid crystals |
Authors: | Nagappa Mahadeva, J. Somashekar, R. Yalemaggad, C.V. Umesh, G. Manjunatha, K.B. |
Issue Date: | 2011 |
Citation: | Molecular Crystals and Liquid Crystals, 2011, Vol.540, , pp.88-93 |
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 532nm. 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 � 10-11 esu and 2.232cm/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. Copyright � Taylor & Francis Group, LLC. |
URI: | http://idr.nitk.ac.in/jspui/handle/123456789/8567 |
Appears in Collections: | 2. Conference Papers |
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