EPR and optical properties of LiNbO3:Yb, Pr single crystals

T. Bodziony; S. M. Kaczmarek; J. Hanuza

doi:10.1117/12.622510

11 October 2005 EPR and optical properties of LiNbO₃:Yb, Pr single crystals

T. Bodziony, S. M. Kaczmarek, J. Hanuza

Proceedings Volume 5958, Lasers and Applications; 59580A (2005) https://doi.org/10.1117/12.622510
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

Electron paramagnetic resonance (EPR) measurements of LiNbO₃: Yb, Pr (0.8wt.%, 0.1 wt.%) single crystals were analyzed for lattice sites of Yb in the crystal and also for the Yb³⁺ pairs arising. Parameters of the spin Hamiltonian were calculated using EPRNMR program. From the angular variations of the EPR spectra it results Yb³⁺ ions of C₁ symmetry arise in the crystal. Pr³⁺ ions change parameters of spin hamiltonian for Yb³⁺ ion. Some results of the absorption measurements were also analyzed for UV-VIS and IR giving evidence, together with EPR results, on Yb³⁺ location at Li⁺ sites and Pr³⁺ location at Nb⁵⁺ sites. For comparison absorption spectra of the LiNbO₃ doped with 0.5 wt. % Pr³⁺, 0.8 wt. % Yb³⁺ were analyzed. Low temperature absorption measurements have shown the presence of low energy phonons responsible for the intensity of the main Yb³⁺ absorption line in IR as a function of the temperature. Raman spectra confirmed the observation.

Citation Download Citation

T. Bodziony, S. M. Kaczmarek, and J. Hanuza "EPR and optical properties of LiNbO₃:Yb, Pr single crystals", Proc. SPIE 5958, Lasers and Applications, 59580A (11 October 2005); https://doi.org/10.1117/12.622510

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