Bulk Photovoltaic Effect In Commercial Lithium Niobate Crystals

D . A. Bryan; Robert Gerson

doi:10.1117/12.934775

7 November 1983 Bulk Photovoltaic Effect In Commercial Lithium Niobate Crystals

D . A. Bryan, Robert Gerson

Proceedings Volume 0380, Los Alamos Conf on Optics '83; (1983) https://doi.org/10.1117/12.934775
Event: Los Alamos Conference on Optics, 1983, New Mexico, United States

Abstract

Glass, et al.,'¹ discovered the bulk photovoltaic effect in doped lithium niobate crystals, and described the effect by the equation J = KaI, where J = current density, K = a constant whose value depends on the dopant and the light wavelength, a = absorp-tion coefficient, and I =.light intensity. In subsequent studies it was shown that for iron - doped crystals K varies significantly with the Fe2+ concentration. We propose to extend the description of the photovoltaic effect for iron by using the equation J = K1+ I, where K1 depends on light wavelength, but is independent of concentration, and aFe2+ (the absorption coefficient for the ionization of Fe2+) is proportional to Fe2-1- concentration. Experimental procedures will be described for making bulk photovoltaic measurements and using the extended equation for the characterization of commercial lithium niobate, where Fez+ is a trace contaminant, and a fe2+<< at wavelengths of 400 - 500 nm.

Citation Download Citation

D . A. Bryan and Robert Gerson "Bulk Photovoltaic Effect In Commercial Lithium Niobate Crystals", Proc. SPIE 0380, Los Alamos Conf on Optics '83, (7 November 1983); https://doi.org/10.1117/12.934775

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