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 $660\text{\hspace{0.17em}nm}$. Recording of a $3\times 3\times 3$ matrix of microholograms was realized and it showed the cross-talk effect was negligibly small.

© 2007 Optical Society of America

Nonvolatile holographic storage in iron-doped lithium tantalate with continuous-wave laser light

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