摘要
实验测量了新型无机闪烁体材料LaCl3和LaBr3单晶在不同温度下不同表面的拉曼光谱,得到了LaCl3晶体全部6个拉曼峰中的5个以及LaBr3晶体全部6个拉曼峰。随着温度的升高,晶体拉曼频移有减小的趋势,并近似呈线性变化。在拉曼出射光后加偏振片的结果表明,与c轴垂直表面的拉曼光谱形状不受偏振片的影响,c轴所在平面的拉曼光谱则受到偏振片的显著影响。
The Raman spectrums of new scintillation materials LaCl3 and LaBr3 single crystals in different temperatures for different surfaces are measured.Five of all six peaks of LaCl3 crystal and all six peaks of LaBr3 crystal are obtained.The Raman shift becomes smaller while temperature rises,and approximately can be fit to a linearity result.A polarizer is placed on the path of Raman scattering light,and no change can be observed while light propagates parallel to c-axis,while remarkable changes can be observed when light propagates perpendicular to c-axis.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2010年第7期2053-2059,共7页
Acta Optica Sinica
