Title :
Light beam hysteresis in liquid crystals.
Author :
Piccardi, Armando ; Alberucci, Alessandro ; Kravets, Nina ; Assanto, Gaetano ; Buchnev, O. ; Kaczmarek, M.
Author_Institution :
NooEL - Nonlinear Opt. & Optoelectron. Lab., Univ. “Roma Tre”, Rome, Italy
Abstract :
We investigate optical bistability with light beams propagating in reorientational nematic liquid crystals. In a given interval of input powers, light beams can propagate in either diffracting or soliton states, depending on the “history” of the system. We use biased planar samples exhibiting an abrupt self-focusing response with threshold.
Keywords :
hysteresis; nematic liquid crystals; optical self-focusing; optical solitons; abrupt self-focusing response; biased planar samples; diffracting states; input powers; optical bistability; propagating light beam hysteresis; reorientational nematic liquid crystals; soliton states; Charge carrier processes; Magnetic confinement; Optical bistability; Optical diffraction; Optical propagation; Optical solitons; Optimized production technology; hysteresis; nematic liquid crystal; obtical bistability; spatial soliton;
Conference_Titel :
Photonics Technologies, 2014 Fotonica AEIT Italian Conference on
Conference_Location :
Naples
Print_ISBN :
978-8-8872-3718-4
DOI :
10.1109/Fotonica.2014.6843888
