Title :
Dynamics of Photo-induced Optical Nonlinearity Enhancement of Azo-benzene doped Liquid Crystals
Author :
Xu, Lei ; Liu, Xiu ; Ji, Liyong ; Yang, Pei ; Liu, Liying
Author_Institution :
Dept. of Opt. Sci. & Eng., Fudan Univ., Shanghai
Abstract :
Optical nonlinearity of azo-benzene doped liquid crystals can be significantly enhanced not only in liquid crystal phase, but also in isotropic liquid phase. We investigated both experimentally and theoretically the ultrafast dynamics of the enhancement, which reveals that the enhancement mainly comes from losing of anisotropic distribution of trans azo-benzene isomers after they are resonantly excited by linearly polarized light.
Keywords :
liquid crystals; nonlinear optics; organic compounds; anisotropic distribution; azo benzene doped liquid crystals; photo induced optical nonlinearity; trans azo benzene isomers; ultrafast dynamics; Geometrical optics; Liquid crystal devices; Liquid crystals; Nonlinear optics; Optical devices; Optical mixing; Optical polarization; Optical pumping; Photonic crystals; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391636
