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Proceedings Paper

Azimuthal rotation of nematic layer director under pulsed laser radiation
Author(s): Georgy L. Nekrasov; Tatiana A. Davidovich
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Paper Abstract

The result of experimental studies of thermal mechanism of optical response of a c.w. He-Ne laser probe beam when a dye-activated nematic layer is irradiated with free-lasing radiation of a ruby laser are analyzed. Experimental geometry is such that planar-oriented nematic laser is perpendicular to the direction of the acting ruby laser beam, the electric field vector of this radiation forming an angle of 45 degrees with the layer director. Analysis of experimental oscillograms shows that, besides thermal impact whose intensity is determined by the number of oscillations, there is also variation in the oscillating signal amplitude. Their amplitude is determined by an azimuthal angle between vector E of acting laser beam and layer director. This angle can be induced only with action of electrical field of radiation.

Paper Details

Date Published: 23 September 1998
PDF: 4 pages
Proc. SPIE 3488, Nonlinear Optics of Liquid and Photorefractive Crystals II, (23 September 1998); doi: 10.1117/12.323683
Show Author Affiliations
Georgy L. Nekrasov, Institute of Electronics (Belarus)
Tatiana A. Davidovich, Institute of Electronics (Belarus)

Published in SPIE Proceedings Vol. 3488:
Nonlinear Optics of Liquid and Photorefractive Crystals II
Gertruda V. Klimusheva, Editor(s)

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