title: Nonlinear dynamics in laser polarization conversion by stimulated scattering in nematic liquid crystal films.
abstract: We present a study of the nonlinear dynamics of a coherent polarization conversion process in nematic liquid crystal films. This effect is mediated by two-beam coupling between the incident polarized laser and its orthogonally polarized (lower-frequency) noise component scattered by the director axis fluctuations. A complete model for the director dynamics derived from the basic equations is presented. The existence of complex, time-, and intensity-dependent dynamics of the director motion such as oscillations and various bifurcations including period doubling is revealed.
authors.affiliation: Department of Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
authors.forename: I C
authors.initials: IC
authors.lastname: Khoo
authors.forename: A
authors.initials: A
authors.lastname: Diaz