Title :
Feedback-free kaleidoscope of patterns from nanosecond laser irradiated nematic liquid crystals
Author :
Lukishova, S.G. ; Boyd, Robert W. ; Marshall, K.L.
Author_Institution :
Inst. of Opt., Rochester Univ., NY, USA
Abstract :
Summary form only given. The present paper is, to our knowledge, the first account of hexagon pattern formation under nanosecond laser irradiation in a single laser beam and without any feedback involved. In our experiment, regular structures in beam cross-section changed spontaneously from pulse to pulse from fringes and stripes to multiple hexagons of various scales.
Keywords :
laser beam effects; nematic liquid crystals; nonlinear optics; pattern formation; feedback-free kaleidoscope of patterns; hexagon pattern formation; multiple hexagons; multiple quasiperiodic drops; nanosecond laser irradiation; nearly Gaussian laser beam; nematic liquid crystals; nonlinear optical media; planar-aligned cell; scattering of laser light; single laser beam; unusual grating formation; Laser radiation effects; Liquid crystals; Nonlinear optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-708-3
DOI :
10.1109/QELS.2002.1031361
