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Study of transient photorefractive beam coupling in high- and low-molar-mass liquid crystal mixtures |
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| Authors: | H. Ono N. Kawatsuki |
| Affiliation: | (1) Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188, Japan (Fax: +81-258/47-9500, E-mail: onoh@nagaokaut.ac.jp), JP;(2) Department of Applied Chemistry, Himeji Institute of Technology, 2167 Shosha, Himeji 671-2201, Japan, JP |
| Abstract: | We observed transient signals of Bragg grating formation in high-performance photorefractive high- and low-molar-mass liquid crystal mixtures (HL-LCMs). These transient signals including oscillation-like behavior can be explained by a complex time constant in the case of a finite applied dc field. The time constant for the space-charge field to reach its steady state and the oscillation frequency are estimated. Received: 30 October 1998 / Revised version: 14 December 1998 / Published online: 24 February 1999 |
| Keywords: | PACS: 42.65.Hw 42.70.Df 42.70.Nq |
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