NagappaMahadeva, J.Somashekar, R.Yalemaggad, C.V.Umesh, G.Manjunatha, K.B.2026-02-062011Molecular Crystals and Liquid Crystals, 2011, Vol.540, , p. 88-9315421406https://doi.org/10.1080/15421406.2011.568341https://idr.nitk.ac.in/handle/123456789/33082We 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.Banana shaped liquid crystalnonlinear optical propertyQ-switchingZ-scan