Title :
Creation of a hollow laser beam using self-phase modulation in a nematic liquid crystal
Author :
Shevchchko, A. ; Buchter, S.C. ; Kaivola, M. ; Tabiryan, N.V.
Author_Institution :
Dept. of Eng. Phys. & Math., Helsinki Univ., Finland
Abstract :
We present a simple method to convert a Gaussian laser beam into an annular beam with sub-millimeter diameter and a width of a few tens of microns using a homeotropically oriented nematic liquid crystal.
Keywords :
laser beams; liquid crystal devices; nematic liquid crystals; self-phase modulation; Gaussian laser beam; annular beam; hollow laser beam; homeotropically oriented liquid crystal; nematic liquid crystal; self-phase modulation; submillimeter diameter beam;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
