Title :
Transverse cumulative effects in pulsed laser irradiation of nematic liquid crystals: 2-10-Hz pulse-repetition rate, nanosecond mode
Author :
Lukishova, S.G. ; Schmid, A.W.
Author_Institution :
IRE-SL, Honeoye Falls, NV, USA
Abstract :
Summary form only given. In response to 6-10-ns laser irradiation of nonabsorbing planar nematic liquid-crystal (LC) layers, unusual/spl sim/several second build-up time, far-field, elliptical diffraction ring pattern in a 532-nm, linearly polarized, Gaussian beam, self-organizes through stages of chaotic scattering and interference at 2-10-Hz pulse-repetition rate. This pattern is observed under experimental conditions excluding ordinary orientational spatial self-phase modulation, for a geometry in which incident light polarization is parallel to the director of LC molecules.
Keywords :
high-speed optical techniques; laser beam effects; light polarisation; liquid crystal devices; nematic liquid crystals; optical films; 532 nm; 6 to 10 ns; LC molecules; chaotic scattering; far-field elliptical diffraction ring pattern; light polarization; linearly polarized Gaussian beam; nanosecond mode; nematic liquid crystals; nonabsorbing planar nematic liquid-crystal layers; ns laser irradiation; ordinary orientational spatial self-phase modulation; pulse-repetition rate; pulsed laser irradiation; self-organizes; transverse cumulative effects; Chaos; Diffraction; Interference; Laser beams; Laser modes; Light scattering; Liquid crystals; Optical polarization; Optical pulses; Ring lasers;
Conference_Titel :
Quantum Electronics Conference, 2000. Conference Digest. 2000 International
Conference_Location :
Nice, France
Print_ISBN :
0-7803-6318-3
DOI :
10.1109/IQEC.2000.908104
