This paper presents measurements of light-induced near infrared absorption in Bi/sub 12/TiO/sub 20/ (BTO) crystals highly doped with Ru. According to the light-induced absorption dark decay measurements it is supposed that Ru creates two different levels: Ru/sup 3+/4+/ and Ru/sup 4+/5+/ located "more shallow" than the deep one with respect to the valence band. Each of these two levels has different contribution to the light-induced absorption and different thermal ionization rates /spl beta/, so the interaction between them can be neglected. After pump light illumination a redistribution of electrons from the deep into the shallow levels occurs and as a result absorption is changed, because the absorption cross-section is different for the deep and the shallow traps. On the basis of these preliminary experimental results the Ru-doped BTO crystal is proposed as a promising material for near-infrared photorefractive applications.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Light-induced infrared absorption in Ru-doped Bi/sub 12/TiO/sub 20/ single crystals


    Contributors:
    Marinova, V. (author) / Shiuan Huei Lin, (author) / Piquette, S. (author) / Gospodinov, M. (author) / Hsu, K.Y. (author)


    Publication date :

    2003-01-01


    Size :

    76738 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Light-induced infrared absorption in Ru-doped Bi~1~2TiO~2~0 single crystals

    Marinova, V. / Lin, S. H. / Piquette, S. et al. | British Library Conference Proceedings | 2003


    Light-induced absorption of Ru-doped Bi~1~2TiO~2~0 crystals

    Piquette, S. / Marinova, V. / Lin, S. H. et al. | British Library Conference Proceedings | 2003



    Light-induced domain patterning in magnesium-doped lithium niobate crystals

    Wengler, M.C. / Heinemeyer, U. / Buse, K. | IEEE | 2005


    Dynamics of green-light induced infrared absorption in KTP and PPKTP

    Wang, S. / Pasiskevicius, V. / Laurell, F. | IEEE | 2003