Er,Ce:Y3Al5O12 crystal properties under UV, VIS and IR radiation exposure

Pavel H. Muzhikyan; Vahan G. Babajanyan; Radik B. Kostanyan; Ashot G. Petrosyan

doi:10.1117/12.2005079

11 March 2013 Er,Ce:Y₃Al₅O₁₂ crystal properties under UV, VIS, and IR radiation exposure

Pavel H. Muzhikyan, Vahan G. Babajanyan, Radik B. Kostanyan, Ashot G. Petrosyan

Proceedings Volume 8621, Optical Components and Materials X; 86210A (2013) https://doi.org/10.1117/12.2005079
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

Spectral and kinetic properties of Er,Ce:Y₃Al₅O₁₂ crystals with various concentrations of impurities are investigated under optical excitations at 445, 457, 532, 808 and 980 nm wavelengths. An essential contribution of Ce³⁺ sensitizer ions in the process of population inversion formation between the ⁴I_13/2 and ⁴I_15/2 levels of Er³⁺ ions in YAG matrix is revealed due to the fact that their dipole-allowed interconfigurational f-d transitions have intense absorption UV bands and there are effective channels of optical excitation energy nonradiative transfer to the Er³⁺ ions. As a result, significant increase in the optical excitation efficiency near 445 nm wavelength is achieved which is important precondition for generation realization near 1.5 μm.

Citation Download Citation

Pavel H. Muzhikyan, Vahan G. Babajanyan, Radik B. Kostanyan, and Ashot G. Petrosyan "Er,Ce:Y₃Al₅O₁₂ crystal properties under UV, VIS, and IR radiation exposure", Proc. SPIE 8621, Optical Components and Materials X, 86210A (11 March 2013); https://doi.org/10.1117/12.2005079

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