期刊
PHYSICS OF THE SOLID STATE
卷 59, 期 1, 页码 120-125出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063783417010103
关键词
-
Crystals of the composition Ca1-xErxF2+x (0 < x <= 0.02) have been grown from the melt by the Bridgman method. The absorption, luminescence excitation, and photoluminescence spectra of this material in the case of the Stokes and anti-Stokes mechanisms of the optical excitation from two radiation sources simultaneously have been analyzed. It has been found that the visible luminescence manifests itself upon sequential absorption of two resonance infrared photons with different energies. This effect is associated with the fact that, in this material, there are metastable states of the excited levels I-4(11/2) of the Er3+ ions, from which transitions to higher energy levels occur due to the absorption of infrared photons.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据