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15 May 1994 Evaluation of |β| of stilbazolium p-toluenesulfonates by the hyper Rayleigh scattering method
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Abstract
The hyper Rayleigh scattering (HRS) method was applied to determine the absolute value of second-order hyperpolarizabilities ((beta) ) of stilbazolium p-toluenesulfonates and related ionic species in methanol. In general, the (beta) values of stilbazolium derivatives become large with increasing wavelength of absorption maximum and are 1.1 X 10-28 - 3.9 X 10-28 esu, i.e., 3 - 10 times larger than (beta) of p-nitroaniline. By way of exception, halogenated stilbazoliums showed rather larger (beta) compared with the unsubstituted stilbazolium having almost the same absorption cutoff and maximum. The calculated d value of hydroxystilbazolium p-toluenesulfonate obtained using the present (beta) and the known crystal structure agreed well with the experimental d value by the Maker fringe method.
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Xuan-Ming Duan, Shuji Okada, Hachiro Nakanishi, Akira Watanabe, Minoru Matsuda, Koen J. Clays, Andre P. Persoons, and Hiro Matsuda "Evaluation of |β| of stilbazolium p-toluenesulfonates by the hyper Rayleigh scattering method", Proc. SPIE 2143, Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications, (15 May 1994); https://doi.org/10.1117/12.173833
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