Fast surface reorientation induced by a single 4-ns low-energy laser pulse in dye-doped liquid crystals is reported. The reorientation is due to light-induced modification of the surface anisotropy, which affects the liquid crystal’s director through the appearance of a preferred direction on the irradiated surface. The detected signals can be interpreted as being the result of light-induced desorption and adsorption of dye molecules.
© 2003 Optical Society of America
(160.3710) Materials : Liquid crystals
L. Lucchetti, D. Fedorenko, O. Francescangeli, Y. Reznikov, and F. Simoni, "Surface reorientation induced by short light pulses in doped liquid crystals," Opt. Lett. 28, 1621-1623 (2003)