Light-induced absorption in pure and doped Bi 12 TiO 20 monocrystals by using high-intensity laser pulses
Zdravka I. AnevaInstitute of Solid State Physics (Bulgaria)Zahari PeshevAtanaska D. DelevaE. P. Vidolova-AngelovaInstitute of Solid State Physics (Bulgaria)Dimitar AngelovInstitute of Solid State Physics (Bulgaria)
2001en
ABI
Abstract
Light-induced absorption in pure B<SUB>12</SUB>TiO<SUB>20</SUB> crystal and crystals doped with Nd, Mo, W, and V was investigated using the pump-probe method. Q-switched frequency-doubled (532 nm) YAG:Nd laser with pulse duration approximately 20 ns was applied for sample irradiation. Investigation of pump-induced transmission was carried out by means of a tunable dye laser radiation at (lambda) <SUB>1</SUB> equals 568 nm and (lambda) <SUB>2</SUB> equals 698 nm. The dependence of the light-induced absorption coefficient on the pump beam intensity and probe wavelengths was determined. The two-center model was used to explain the observed results.
Identifiers
Citations and references
Cited by 20 references