Diffusion of photoexcited azo dye in a liquid-crystal host

• DOI: 10.1364/ol.23.000727
• Publication Date: 2008-05-07T19:26:03Z
• Authors: B. Saad; M. M. Denariez-Ro...; T. V. Galstyan
• Keywords: Diffraction efficiency; Crystal (programming language); Rotational diffusion

Dynamic holograms are created and studied in a D2 azo-dye-doped nematic liquid crystal. The dependence of diffraction on the excitation probe polarizations is observed. efficiency corresponding relaxation time depend also period orientation light-interference pattern with respect to initial molecular orientation. diffusion dye molecules suggested be origin these phenomena.