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

Mohammad H. Majles Ara; C. V. Vijayan; Nandigana K. Krishna Mohan; Mahendra P. Kothiyal; Rajpal S. Sirohi

doi:10.1117/12.346779

29 April 1999 Experimental characterization of photorefractive beam coupling in BaTiO3 crystal at multiple wavelengths

Mohammad H. Majles Ara, C. V. Vijayan, Nandigana K. Krishna Mohan, Mahendra P. Kothiyal, Rajpal S. Sirohi

Proceedings Volume 3729, Selected Papers from International Conference on Optics and Optoelectronics '98; (1999) https://doi.org/10.1117/12.346779
Event: Selected Papers from the International Conference on Optics and Optoelectronics, 1998, Dehradun, India

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.

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Mohammad H. Majles Ara, C. V. Vijayan, Nandigana K. Krishna Mohan, Mahendra P. Kothiyal, and Rajpal S. Sirohi "Experimental characterization of photorefractive beam coupling in BaTiO3 crystal at multiple wavelengths", Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); https://doi.org/10.1117/12.346779

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