Title :
Suppression of unwanted self-focusing effects in nonlinear optical experiments using liquid crystal
Author :
Kawachi, M. ; Kawasaki, B.S. ; Hill, K.O.
Author_Institution :
Communications Research Centre, Ottawa, Canada
Abstract :
It is demonstrated that undesired self-focusing of strong laser beams through a liquid crystal film can be suppressed by the application of an alternating voltage on the sample. Diffraction efficiencies greater than 10% for optically induced optical phase gratings in the liquid crystal are obtained when self-focusing has been suppressed.
Keywords :
liquid crystals; optical self-focusing; diffraction efficiency; liquid crystal; nonlinear optical experiments; optical phase gratings; self focusing suppression; strong laser beams; unwanted self-focusing effects;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820417
