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Please use this identifier to cite or link to this item: https://elib.bsu.by/handle/123456789/109321
Title: Investigation of photo-induced absorption in a Bi12TiO20 crystal
Authors: Matusevich, A.
Tolstik, A.
Kisteneva, M.
Shandarov, S.
Matusevich, V.
Kiessling, A.
Kowarschik, R.
Issue Date: 2008
Publisher: Springer-Verlag
Citation: Investigation of photo-induced absorption in a Bi12TiO20 crystal. Appl. Phys. B 92, 219–224 (2008)
Abstract: ABSTRACT A photorefractive Bi12TiO20 (BTO) crystal is exposed with high intensity pulsed-laser beams 532 nm (the average intensity of the laser was 110mW/cm2, the average intensity per pulse was 2MW/cm2), and the photo-induced dynamics of the absorption between 480 and 900 nm are studied and explained by two long-lived energy levels in the forbidden band. The relaxation times of the long-lived energy levels are experimentally found to be 104 and 105 s. The hysteresis character of the absorption coefficient is discussed. PACS 42.70.Mp; 42.70.Gi
URI: http://elib.bsu.by/handle/123456789/109321
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