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Experimental characterization of photorefractive beam coupling in BaTiO3 crystal at multiple wavelengths
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Paper Abstract

Photorefractive beam coupling in barium titanate crystals is characterized experimentally by measuring the signal beam gain and the exponential gain coefficient at 440 nm, 632.8 nm and 780 nm. The figure of merit parameters such as the change in refractive index, the space charge field and the trap density are estimated using Kukhtarev's theory. A comparative study at multiple wavelengths is presented. The signal beam gain is found to be maximum at 440 nm.

Paper Details

Date Published: 29 April 1999
PDF: 4 pages
Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); doi: 10.1117/12.346779
Show Author Affiliations
Mohammad H. Majles Ara, Indian Institute of Technology/Madras and Teacher Training Univ. Tehran (Iran)
C. V. Vijayan, Indian Institute of Technology/Madras (India)
Nandigana K. Krishna Mohan, Indian Institute of Technology/Madras (India)
Mahendra P. Kothiyal, Indian Institute of Technology/Madras (India)
Rajpal S. Sirohi, Indian Institute of Technology/Madras (India)

Published in SPIE Proceedings Vol. 3729:
Selected Papers from International Conference on Optics and Optoelectronics '98
Kehar Singh; Om Prakash Nijhawan; Arun Kumar Gupta; A. K. Musla, Editor(s)

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