紫外激光激发下Er3+ ∶YAG晶体的荧光谱

紫外激光激发下Er³⁺ ∶YAG晶体的荧光谱

孙桂娟, 石涛, 戴振文

(吉林大学物理学院, 相干光与原子分子光谱教育部重点实验室, 长春 130021)

收稿日期:2005-09-21 修回日期:1900-01-01 出版日期:2005-11-26 发布日期:2005-11-26
通讯作者: 戴振文

Fluorescence Spectra of Er³⁺ ∶YAG under Ultraviolet Laser Excitation

SUN Gui-juan, SHI Tao, DAI Zhen-wen

(Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education, College of Physics, Jilin University, Changchun 130021, China)

Received:2005-09-21 Revised:1900-01-01 Online:2005-11-26 Published:2005-11-26
Contact: DAI Zhen-wen

摘要/Abstract

摘要： 利用时间分辨激光诱导荧光光谱技术, 用262 nm和276 nm紫外激光对原子数分数为x(Er³⁺)=10.5%和x(Er³⁺)=8.4%两种情况下Er³⁺ ∶YAG晶体的4D5/2和2H9/2能级分别共振激发, 记录了每种情况下的荧光发射谱, 对其中所有荧光谱峰对应的能级跃迁做了详细标定. 用Judd-Ofelt理论计算其辐射跃迁几率, 发现实验荧光强度比和理论辐射跃迁几率比基本一致.

关键词: Er³⁺∶YAG晶体, 荧光光谱, 紫外激发, 能级寿命

Abstract: By means of time-resolved laser-induced fluorescence spectroscopic technique, two samples of Er³⁺ ∶YAG with 10.5% and 8.4% (molecular fraction) concentrations were resonantly excited with ultraviolet lasers at 262 nm and 276 nm, and the fluorescence spectra were recorded and the peak transitions were assigned in detail. The corresponding radiative transition probabilities were calculated via Judd-Oflet theory. It has been found that the experimental fluorescence intensity ratio and the theoretical radiative transition probability ratio are in good agreement.

Key words: Er3³⁺∶YAG crystal, fluorescence spectrum, ultraviolet excitation, level lifetime

中图分类号:

O433

孙桂娟, 石涛, 戴振文. 紫外激光激发下Er³⁺ ∶YAG晶体的荧光谱[J]. J4, 2005, 43(06): 818-821.

SUN Gui-juan, SHI Tao, DAI Zhen-wen. Fluorescence Spectra of Er³⁺ ∶YAG under Ultraviolet Laser Excitation[J]. J4, 2005, 43(06): 818-821.

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紫外激光激发下Er³⁺ ∶YAG晶体的荧光谱

Fluorescence Spectra of Er³⁺ ∶YAG under Ultraviolet Laser Excitation

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