Investigation of the photoionization of Ce3+ ions in YAG crystal by microwave resonant technique
V. V. Pavlov, V. V. Semashko, R. M. Rakhmatullin, V. N. Efimov, S. L. Korableva, L. A. Nurtdinova, M. A. Marisov, V. G. Gorieva
Kazan (Volga Region) Federal University, 420008 Kazan, Russia
Abstract
Kinetic and spectral characteristics of the complex dielectric
constant of Ce:YAG
crystal under laser irradiation in 250-275 nm spectral range are investigated. The
lifetimes of free charge carrier and charge carriers, localized at the lattice defects (color
centers), are estimated. It was established that photoconductivity signal of the sample is
essentially caused by one-photon ionization processes from the 2F5/2 ground
state of Ce3+ ions.