By using a simple optical geometry based on backward light scattering and employing a Sandercock-type tandem Fabry–Perot interferometer, we measure both the linear and the circular polarization dependences of Rayleigh-wing and Brillouin scattering in a sample of liquid-crystal 4-<i>n</i>-pentyl-4<sup>′</sup>-cyanobiphenyl. Observed polarization dependences are consistent with the third-order nonlinear susceptibilities, taking into account the traceless symmetric scattering tensor for Rayleigh-wing scattering and the isotropic scattering tensor for Brillouin scattering.
© 2004 Optical Society of America
Eriko Tatsu, Toshiaki Sonehara, Seigo Ohno, Satoshi Moriguchi, Akitoshi Koreeda, and Seishiro Saikan, "Measurement of polarization dependence of nonlinear susceptibility responsible for Rayleigh-wing and Brillouin scattering," Opt. Lett. 29, 2417-2419 (2004)