Three-dimensional write-read-erase memory bits by femtosecond laser pulses in photorefractive LiNbO3 crystals Conference Paper uri icon


  • We report on a three-dimensional single-shot optical recording by 150 fs pulses at 800 nm wavelength in Fe-doped and stoichiometric undoped LiNbO 3 . The highest refractive index modulation of 10 -3 per single pulse has been achieved at close to the dielectric breakdown irradiance of TW/cm 2 , and was found to be independent of polarization of the writing beam. The quasi-permanent and rewritable bits have been demonstrated in Fe-doped LiNbO 3 . Recording in undoped stoichiometric LiNbO 3 was of transient nature with full optical contrast recovery on a 0.1-1 s scale. The observed refractive index modulation is explainable by the photovoltaic effect in LiNbO 3 . 2007 Elsevier B.V. All rights reserved.

published proceedings


author list (cited authors)

  • Gamaly, E. G., Juodkazis, S., Mizeikis, V., Misawa, H., Rode, A. V., Krolikowski, W. Z., & Kitamura, K.

citation count

  • 11

complete list of authors

  • Gamaly, Eugene G||Juodkazis, Saulius||Mizeikis, Vygantas||Misawa, Hiroaki||Rode, Andrei V||Krolikowski, Wieslaw Z||Kitamura, Kenji

publication date

  • May 2008