Title :
Spatial soliton all-optical logic gates
Author :
Serak, Svetlana V. ; Tabiryan, Nelson V. ; Peccianti, Marco ; Assanto, Gaetano
Author_Institution :
Beam Eng. for Adv. Meas. Corp., Winter Park, FL
fDate :
6/1/2006 12:00:00 AM
Abstract :
We demonstrate some basic all-optical (electrically unbiased) logic gates in azobenzene liquid crystalline cells, exploiting their large nonlinearity for light localization and the trans-cis photoisomerization for all-optical external control. Spatial solitons were excited at microwatt power levels at 632.8 nm, whereas gating and switching were achieved with milliwatt beams at 409 nm
Keywords :
isomerisation; liquid crystals; logic gates; optical control; optical logic; optical solitons; photochemistry; 409 nm; 632.8 nm; all-optical external control; all-optical logic gates; azobenzene liquid crystalline cells; nonlinearity; spatial soliton; trans-cis photoisomerization; Computational Intelligence Society; Geometrical optics; Liquid crystals; Logic gates; Nonlinear optics; Optical beams; Optical refraction; Optical solitons; Optical variables control; Refractive index; All-optical processing; angular steering; light self-localization; liquid crystals; spatial solitons;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.875318
