11 March 2013 Er,Ce:Y3Al5O12 crystal properties under UV, VIS, and IR radiation exposure
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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
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 4I13/2 and 4I15/2 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.
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Pavel H. Muzhikyan, Vahan G. Babajanyan, Radik B. Kostanyan, 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); doi: 10.1117/12.2005079; https://doi.org/10.1117/12.2005079


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