Analyses of the thermal shifts of spectral lines in Nd3+-doped LiYF4 laser crystal

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	Analyses of the thermal shifts of spectral lines in Nd3+-doped LiYF4 laser crystal
	W. C. Zheng; P. Su; H. G. Liu; G. Y. Feng
	2012
发表期刊	Applied Physics B-Lasers and Optics
ISSN	0946-2171
卷号	109 期号:1 页码:43-46
摘要	The red-shift of spectral line E-1(R-1 -> Y-2) and blue-shift of line E-2(R-1 -> X-5) with temperature in Nd3+-doped LiYF4 laser crystal are studied by considering both the static contribution due to lattice thermal expansion and vibrational contribution due to electron-phonon interaction. The study is based on the analyses of pressure and temperature dependences of these spectral lines. It is found that for both lines, the static and vibrational contributions result in the blue- and red-shift, respectively. So, the observed red-shift of line E-1 and blue-shift of line E-2 are due respectively to the static contribution being smaller and larger than the vibrational one. Also, we infer that the thermal shifts of lines E-3(R-1 -> Y-5) and E-4(R-2 -> Y-5) are very small because both contributions may be approximately canceled. When both the contributions are contained, whether the red-shift or blue-shift of a spectral line can be fitted with the almost same theoretical expression as that by including only the vibrational contribution used in red-shift in the previous papers if we change the expression concerning electron-phonon interaction coefficient.
部门归属	[zheng, w. c.; su, p.; liu, h. g.] sichuan univ, dept mat sci, chengdu 610064, peoples r china. [zheng, w. c.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [feng, g. y.] sichuan univ, coll elect informat, chengdu 610064, peoples r china.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china.;zhengwc1@163.com
关键词	Trivalent Neodymium Ions Energy-levels Emission-lines Nd-ylf Temperature Linewidths Transitions Host Gain
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60508
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Zheng,P. Su,H. G. Liu,et al. Analyses of the thermal shifts of spectral lines in Nd3+-doped LiYF4 laser crystal[J]. Applied Physics B-Lasers and Optics,2012,109(1):43-46.
APA	W. C. Zheng,P. Su,H. G. Liu,&G. Y. Feng.(2012).Analyses of the thermal shifts of spectral lines in Nd3+-doped LiYF4 laser crystal.Applied Physics B-Lasers and Optics,109(1),43-46.
MLA	W. C. Zheng,et al."Analyses of the thermal shifts of spectral lines in Nd3+-doped LiYF4 laser crystal".Applied Physics B-Lasers and Optics 109.1(2012):43-46.