绿宝石激光晶体的主折射率及其温度系数的精确测量  

Measurement of Principal Refractive Indices and Expression of Thermal Refractive Index Coefficients of Emerald Laser Crystal

作　　者：陈振强[1] 张戈[1] 沈鸿元[1] 黄呈辉[1] 刘文[1] 黄凌雄[1] 

机构地区：[1]中国科学院福建物质结构研究所,福建福州350002

出　　处：《中国激光》2003年第9期843-846,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金 (编号 :6 0 2 780 2 5 );中国科学院基础局重点项目 (2 0 0 2 86 );福建省青年创新基金 (2 0 0 1J0 14)资助课题

摘　　要：报道了用自准直法在 0 4 88μm ,0 5 3975 μm ,1 0 795 μm和 1 34 14μm激光波长上测量了含Cr3 + 离子浓度为 1 0 1at . %的Cr3 + ∶Be3 Al2 Si6O18晶体的主折射率及其温度系数 ,得到了该晶体的Sellmeier方程 ,用此结果反算了该晶体在上述 4种波长下不同温度的折射率 ,误差小于 1 0 9× 10 -4 ,最后对测量误差进行了讨论。The principal refractive indices and the thermal refractive index coefficients for Cr3+: Be3Al2Si6O18 crystal doped with 1.01 wt.-% Cr2O3 have been accurately measured by the auto-collimation method at the wavelengths of 0.488 μm, 0.53975 μm, 1.0795 μm and 1.3414 μm, at the temperature of 308.2 K, 328.6 K, 359.1 K and 395.4 K, respectively. The Sellmeier's equations and the thermal refractive index coefficients were obtained, and the result was certified to be accurate by error analysis.

关 键 词：人工晶体 CR3+ Be3Al2Si6O16晶体 折射率 温度系数 

分 类 号：O734[理学—晶体学]