Energy spectra of the tunable laser crystal Gd3Ga5O12 : Cr3+ and their pressure-induced shifts

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	Energy spectra of the tunable laser crystal Gd3Ga5O12 : Cr3+ and their pressure-induced shifts
	Ma, DP
通讯作者	Ma, DP(maurice@mail.sc.cninfo.net)
	2004-01-15
发表期刊	COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN	0253-6102
卷号	41 期号:1 页码:141-150
摘要	By means of both the theory for pressure-induced shifts (PS) of energy spectra and the theory for shifts of energy spectra due to electron-phonon interaction (EPI), at 300 K, the 'pure electronic' contributions and the contributions from EPI to R-1 line, R-2 line, and U band of GGG:Cr3+ as well as their PS have been calculated, respectively. The total calculated results are in good agreement with all the experimental data. Their physical origins have been explained. It is found that the mixing-degree of \t(2)(2)(T-3(1))e(4)T(2)] and \t(2)(3 2)E] base-wavefunctions in the wavefunctions of R-1 level of GGG:Cr3+ is considerable under normal pressure, and the mixing-degree rapidly decreases with increasing pressure. The change of the mixing-degree with pressure plays a key role for PS of R-1 line or R-2 line. At 300 K, both the temperature-independent contribution to R-1 line (or R-2 line or U band) from EPI and the temperature-dependent one are important. The remarkable difference between pressure-dependent behaviors of PS of R-1 lines of GGG:Cr3+ and GSGG:Cr3+ results from the differences of their microscopic properties. The features of emission spectra of GGG:Cr3+ at various pressures have satisfactorily been explained.
关键词	high-pressure effect line shift spin-orbit interaction electron-phonon interaction d-orbital coupling between t(2)(2)(T-3(1))e(4)T(2) and t(2)(3) E-2 tunable laser crystal
收录类别	SCI
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000188439700029
出版者	INT ACADEMIC PUBL
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/81831
通讯作者	Ma, DP
作者单位	1.Sichuan Univ, Dept Appl Phys, Chengdu 610065, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Ma, DP. Energy spectra of the tunable laser crystal Gd3Ga5O12 : Cr3+ and their pressure-induced shifts[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2004,41(1):141-150.
APA	Ma, DP.(2004).Energy spectra of the tunable laser crystal Gd3Ga5O12 : Cr3+ and their pressure-induced shifts.COMMUNICATIONS IN THEORETICAL PHYSICS,41(1),141-150.
MLA	Ma, DP."Energy spectra of the tunable laser crystal Gd3Ga5O12 : Cr3+ and their pressure-induced shifts".COMMUNICATIONS IN THEORETICAL PHYSICS 41.1(2004):141-150.