Time-resolved luminescence spectroscopy of LiF(U) crystals

被引：0

作者：

V. Yu. Yakovlev

A. V. Moiseeva

机构：

[1] National Research Tomsk Polytechnic University,

来源：

Optics and Spectroscopy | 2011年 / 110卷

关键词：

Decay Time Constant; Thermal Activation Energy; Short Wavelength Range; Electric Level; Magnetic Level;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We studied the luminescence spectra and decay kinetics of LiF(U) crystals excited by pulsed laser radiation (λ = 337 nm) in temperature range of 15–300 K. Two groups of lines with different exponential decay times are revealed in spectra. Based on comparative analysis of fast and slowly decaying luminescence spectra, temperature dependences of decay time constants, and line intensities, we conclude that electronic transitions from radiation levels of the impurity luminescence center can occur, not only in a vibrationally relaxed state, but also in a state with an excited high-frequency mode in O-U-O bonds.

引用

页码：734 / 739

页数：5