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- Title
Two-photon induced photorefraction in undoped lithium tantalate crystals with different compositions.
- Authors
Steinberg, I. S.; Kalabin, I. E.; Tverdokhleb, P. E.
- Abstract
Two-photon interband photorefraction in undoped lithium tantalate crystals with composition ranging from 47.95 to 49.6 mol% of lithium oxide was demonstrated at the wavelength of 532 nm. The photorefractive properties were examined with holographic method. Two-photon holograms were recorded with high holographic sensitivity, large refractive index change, and fast hologram writing time. Permanent changes of the refractive index have been obtained. These holograms can be read nondestructively at the wavelength of 660 nm using heterodyne method. Holographic characteristics strongly depend on composition.
- Subjects
REFRACTION (Optics); SEMICONDUCTOR doping; LITHIUM tantalate; CRYSTALS; HOLOGRAPHY
- Publication
Applied Physics B: Lasers & Optics, 2009, Vol 95, Issue 3, p407
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-009-3417-z