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Proceedings Paper

Characterization of GRIIRA properties in LiNbO3 and LiTaO3 with different compositions and doping
Author(s): J. Hirohashi; T. Tago; O. Nakamura; A. Miyamoto; Y. Furukawa
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Paper Abstract

Green-induced infrared absorption (GRIIRA) properties were characterized for LiNbO3 (LN) and LiTaO3 (LT) single crystals. GRIIRA was measured using a photothermal common-path interferometer. Several LN and LT with different concentrations and doping materials were investigated. Mg-doped near-stoichiometric LT (Mg-SLT) had the lowest IR absorption. In addition, no GRIIRA was observed only in MgSLT. Therefore, Mg-SLT could be the most suitable material for high power green generation. In LN crystals, higher GRIIRA was observed in non-doped congruent LN (CLN) which has low photorefractive damage threshold. The 1.3 mol% Mg doped SLN had the lowest GRIIRA within the investigated LN crystals. Even in the materials with low GRIIRA, two different characteristics were observed; initially high IR absorption and slow relaxation time of GRIIRA. The first characteristic was observed for Mg doped LN which has a higher number of scattering centers. The second was strongly observed in Mg doped LN which has a higher level of absorption in the UV region.

Paper Details

Date Published: 13 February 2008
PDF: 8 pages
Proc. SPIE 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 687516 (13 February 2008); doi: 10.1117/12.773742
Show Author Affiliations
J. Hirohashi, Oxide Corp. (Japan)
T. Tago, Oxide Corp. (Japan)
O. Nakamura, Oxide Corp. (Japan)
A. Miyamoto, Oxide Corp. (Japan)
Y. Furukawa, Oxide Corp. (Japan)

Published in SPIE Proceedings Vol. 6875:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII
Peter E. Powers, Editor(s)

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