References:

S. Serak, and N. Tabiryan, Microwatt Power Optically Controlled Spatial Solitons in Azobenzene Liquid Crystals, Proc. SPIE vol. 6332, pp.63320Y1-63320Y13, 2006.

S. Serak, N. Tabiryan, S. Serak and N. Tabiryan, " Spatial Solitons in Azobenzene Liquid Crystals," in Nonlinear Optics: Materials, Fundamentals and Applications, OSA Technical Digest (CD) (Optical Society of America, 2007), paper WB7 [http://www.opticsinfobase.org/abstract.cfm?URI=NLO-2007-WB7]