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Proceedings Paper

Figure-of-merit parameter of photorefractive crystals
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Paper Abstract

A comparative study of the photorefractive response of some commonly used ferroelectric, nonferroelectric and semiconducting crystals is presented. The figure-of-merit parameters such as steady-state change in refractive index, response time and photorefractive sensitivity tare evaluated for crystals of BaTiO3, LiBnO3, BSO, GaAs and InP on the basis of Kukhtarev's theory, using input parameters form reported data. These parameters are calculated as a function of the grating period with and without an application of 10kV/cm electric field. The results indicate that the choice of the ideal material for a given application can be made only after a careful comparison of the figure-of-merit parameters as trade-offs exist among the various parameters for any material.

Paper Details

Date Published: 25 September 2001
PDF: 10 pages
Proc. SPIE 4417, Photonics 2000: International Conference on Fiber Optics and Photonics, (25 September 2001); doi: 10.1117/12.441336
Show Author Affiliations
Mohammad H. Majles Ara, Teacher Training Univ. (Iran)
C. V. Vijayan, Indian Institute of Technology Madras (India)
Rajpal S. Sirohi, Indian Institute of Technology Madras (India)


Published in SPIE Proceedings Vol. 4417:
Photonics 2000: International Conference on Fiber Optics and Photonics

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