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|Title:||Nonlinear optical studies of a newly synthesized copolymer containing oxadiazole and substituted thiophenes|
|Authors:||John, Kiran, A.|
|Citation:||Optics Communications, 2007, Vol.271, 1, pp.236-240|
|Abstract:||We investigated the third-order nonlinear optical properties of a newly synthesized soluble copolymer containing oxadiazole and thiophene units using Z-scan and Degenerate Four Wave Mixing (DFWM) techniques. The measurements were performed at 532 nm with 7 ns pulses from a Nd:YAG laser. We found a good agreement between the values of ?(3) determined from both experiments. Z-scan results indicate a negative nonlinear refractive index, n2, whose magnitude is of the order of 10-10 esu. The copolymer exhibits strong nonlinear absorption and good optical limiting properties at 532 nm, and hence may be a potential material for optical limiting applications. 2006 Elsevier B.V. All rights reserved.|
|Appears in Collections:||1. Journal Articles|
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