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Two-photon recording of microholograms in undoped lithium tantalate
Ilya Sh Steinberg1, Yuri A Shepetkin
1Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia. steinberg@iae.nsk.su
Applied Optics
|December 25, 2007
Abstract:
Two-photon recording of microholograms was demonstrated in undoped congruent lithium tantalate crystal with high holographic sensitivity, large refractive index change, and fast hologram writing time. Nonvolatile heterodyne readout was carried out at a wavelength of 660 nm. Recording of a 3 x 3 x 3 matrix of microholograms was realized and it showed the cross-talk effect was negligibly small.
