NEAR-INFRARED LUMINESCENCE PROPERTIES OF THE LASER MATERIAL CR-Y2SIO5

被引：48

作者：

HOMMERICH, U ^{[1
]}

EILERS, H ^{[1
]}

JACOBSEN, SM ^{[1
]}

YEN, WM ^{[1
]}

JIA, W ^{[1
]}

机构：

[1] UNIV PUERTO RICO,DEPT PHYS,MAYAGUEZ,PR 00680

来源：

JOURNAL OF LUMINESCENCE | 1993年 / 55卷 / 5-6期

关键词：

D O I：

10.1016/0022-2313(93)90025-I

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report spectroscopic investigations of the near infrared (NIR) laser center in chromium doped Y2SiO5 (YSO). A comprehensive study including polarized absorption and emission spectra, and the temperature dependence of the fluorescence decay time and the integrated emission intensity is presented. In addition, we performed high resolution excitation and emission measurements. The results are most consistent with the NIR center being attributed to Cr4+ in a distorted tetrahedral site. The assignment of the energy levels and the identification of the metastable level responsible for the NIR laser action will be discussed in detail. The measurements further show that Cr:YSO does not contain octahedrally coordinated Cr3+ which is in contrast to Cr:YAG and Cr:forsterite. In this sense, Cr:YSO can be regarded as a model system for studying the optical properties of the new NIR center.

引用

页码：293 / 301

页数：9

共 23 条

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[2] NEAR-INFRARED INTRACONFIGURATIONAL LUMINESCENCE SPECTROSCOPY OF THE MN5+ (3D2) ION IN CA2PO4CL, SR5(PO4)3CL, CA2VO4CL AND SR2VO4CL [J].