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Proceedings Paper

Nonlinear optical responses of photorefractive crystals
Author(s): Richard C. Powell; Huimin Liu; Istvan Foldvari; Scott A. Holmstrom; Roger J. Reeves
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Paper Abstract

The nonlinear optical response of photorefractive oxide materials was investigated using four- wave-mixing (FWM) techniques with laser pulses having durations in the pico- and sub- picosecond range. The specific materials studied are KNbO3, KTaO3, KTa1-XNbXO3 (KTN), SrXBa1-XNb2O6, and Bi2TeO5. In each case there are several different physical processes that contribute to the nonlinear signals and their origins are analyzed in the context of time intervals within and after the cross-correlation time of the two write beams pulses. The role of the nonlinear absorption in the four-wave mixing (FWM) processes is compared for the different materials. Variation in the build-up of the electro-optic photorefractive effect is discussed.

Paper Details

Date Published: 17 June 1993
PDF: 13 pages
Proc. SPIE 1861, Ultrafast Pulse Generation and Spectroscopy, (17 June 1993); doi: 10.1117/12.147056
Show Author Affiliations
Richard C. Powell, Oklahoma State Univ. (United States)
Huimin Liu, Oklahoma State Univ. (United States)
Istvan Foldvari, Oklahoma State Univ. (Hungary)
Scott A. Holmstrom, Oklahoma State Univ. (United States)
Roger J. Reeves, Oklahoma State Univ. (United States)


Published in SPIE Proceedings Vol. 1861:
Ultrafast Pulse Generation and Spectroscopy
Timothy R. Gosnell; Antoinette J. Taylor; Keith A. Nelson; Michael C. Downer, Editor(s)

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