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Title: | Nonlinear optical properties of p-(N,N-dimethylamino)dibenzylideneacetone doped polymer |
Authors: | Kiran, John A. Rai, N.S. Udayakumar, D. Chandrasekharan, K. Kalluraya, B. Philip, Reji Shashikala, H.D. Adhikari, A.V. |
Keywords: | Organic compounds Optical materials Polymers Optical properties |
Issue Date: | Mar-2008 |
Publisher: | Elsevier B.V. |
Citation: | Materials Research Bulletin, 2008, Vol.43, p707 |
Abstract: | A bis-chalcone derivative, p-(N,N-dimethylamino) dibenzylideneacetone was synthesized. Its third-order nonlinear susceptibility was determined to be as high as 10−12 esu by employing single beam Z-scan and degenerate four wave mixing techniques using Nd:YAG 7 ns laser pulses at 532 nm. The compound was doped in to poly(methylmethacrylate) matrix and the third-order nonlinearity was investigated by using Z-scan technique. The nonlinear refractive index of the doped polymer is found to be negative, and its magnitude is of the order of 10−10 esu. The results show that the compound exhibits strong reverse saturable absorption and a good optical limiting property and hence may be used as a promising dopant material. The study on concentration dependence of nonlinear optical parameters has been presented. |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/3653 |
ISSN: | 0025-5408 |
Alternative Location: | http://dx.doi.org/10.1016/j.materresbull.2007.03.030 |
Copyright: | 2007 Elsevier Ltd. |
Appears in Collections: | Research Papers (LAMP) |
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2008 Materials Research Bulletin Vol.43 p707-713.pdf Restricted Access | Restricted Access | 353.92 kB | Adobe PDF | View/Open Request a copy |
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