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

被引：0

作者：

Muzhikyan, Pavel H. ^{[1
]}

Babajanyan, Vahan G. ^{[1
]}

Kostanyan, Radik B. ^{[1
]}

Petrosyan, Ashot G. ^{[1
]}

机构：

[1] Inst Phys Res, Ashtarak 0203, Armenia

来源：

OPTICAL COMPONENTS AND MATERIALS X | 2013年 / 8621卷

关键词：

spectroscopy; YAG crystal; Er3+ and Ce3+ impurity ions; f-d transition; nonradiative energy transfer; optical excitation; luminescence kinetics; CE3+; ER3+; GLASSES;

D O I：

10.1117/12.2005079

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 I-4(13/2) and I-4(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 mu m.

引用

页数：8

共 21 条

[11] ENERGY LEVELS + CRYSTAL-FIELD CALCULATIONS OF ER3+ IN YTTRIUM ALUMINUM GARNET [J].