Transient and stable color centers in pure and Cu-doped LiNbO<SUB>3</SUB> by A. Matkovskii, P. Potera, D. Sugak, Ya. Zhydachevskii, V. Pankratov, D. Millers, L. Grigorjeva, I. Pracka, T. Lukasiewicz

Crystal Research and Technology

Cryst. Res. Technol. 38, 388 (2003) - Abstract -

Transient and stable color centers in pure and Cu-doped LiNbO₃

A. Matkovskii, P. Potera*, D. Sugak**, Ya. Zhydachevskii, V. Pankratov***, D. Millers***, L. Grigorjeva***, I. Pracka****, T. Lukasiewicz****

Lviv Polytechnic National University, 12 Bandera St., 79646 Lviv, Ukraine
*Institute of Physics, University of Rzeszow, 16A Rejtana St, 35310 Rzeszow, Poland
**Institute of Materials, SRC “Carat”, 202 Stryjska St., 79031 Lviv, Ukraine
***Institute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, Latvia
****Institute of Electronic Materials Technology, 133 Wolczynska St., 01919 Warsaw, Poland

Keywords LiNbO3:Cu, color centers, transient absorption

The present work is devoted to investigation of stable and transient color centers that are induced by radiation and temperature in pure and Cu-doped LiNbO₃ single crystals. The transient changes of absorption of the crystals induced by pulsed electron beam (E=0.25 MeV) are studied in 0-5000 ns time range, as well as stable changes of absorption induced by reducing annealing and irradiation with γ-quanta, high energy electrons or fast reactor neutrons.

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