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钨酸钇钠晶体中Tm3+的光谱特性
引用本文:宋 峰,苏 静,谭 浩,商美茹,吴朝晖,田建国,张光寅,程振祥,陈焕矗. 钨酸钇钠晶体中Tm3+的光谱特性[J]. 物理学报, 2004, 53(10): 3591-3595
作者姓名:宋 峰  苏 静  谭 浩  商美茹  吴朝晖  田建国  张光寅  程振祥  陈焕矗
作者单位:南开大学光子学中心, 天津 300071;南开大学光子学中心, 天津 300071;南开大学光子学中心, 天津 300071;南开大学光子学中心, 天津 300071;南开大学光子学中心, 天津 300071;南开大学光子学中心, 天津 300071;南开大学光子学中心, 天津 300071;山东大学晶体研究所, 济南 250100;山东大学晶体研究所, 济南 250100
基金项目:国家自然科学基金(批准号:60377033,60025512)和教育部重点基金(批准号:01047)资助的课题
摘    要:测量了Tm3+:NaY(WO4)2晶体的吸收光谱、发射光谱和激发光谱,利用J_O理论计算了钨酸钇钠晶体的强度参数:Ω2=7.21304×10-20cm2,Ω4=0.504766×10-20cm2,Ω6=0.977784 ×10-20cm2,以及Tm3+光学参数包括各能级的荧光寿命和荧光分支

关 键 词:Tm3+:NaY(WO4)2晶体,吸收光谱, 激发光谱, 发射光谱
修稿时间:2004-01-09

Spectroscopic properties of Tm3+-doped NaY (WO4)2 crystals
Song Feng,Su Jing,Tan Hao,Shang Mei-Ru,Wu Zhao-Hui,Tian Jian-Guo,Zhang Guang-Yin,Cheng Zhen-Xiang and Chen Huan-Chu. Spectroscopic properties of Tm3+-doped NaY (WO4)2 crystals[J]. Acta Physica Sinica, 2004, 53(10): 3591-3595
Authors:Song Feng  Su Jing  Tan Hao  Shang Mei-Ru  Wu Zhao-Hui  Tian Jian-Guo  Zhang Guang-Yin  Cheng Zhen-Xiang  Chen Huan-Chu
Abstract:Z_scan experiments are performed on the azobenzene polymer (DR_13_PMMA) films with He_Ne laser. It is found that the relation between the cha nge of refractive index of the sample and the light intensity behaves like a sat u rable effect, whose relative parameters are alterable with light intensity. It i s also found that the change of refractive index induced by linearly polarized l ight is distinctly greater than that induced by circularly polarized light. The phenomena are explained by using the theory based on the effect of angular hole burning of photoisomerization.
Keywords:Z-scan   azobenzene polymer   photoisomer ization   angular hole burning
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