摘要
引进偶极矩的格林函数建立了计算晶体辐射吸收系数的理论模型,并用Recursion方法求解晶体偶极矩的格林函数,对β-Si_3N_4晶体的红外吸收系数作了理论计算,结果表明β-Si_3N_4晶体在红外波段7~30μm之间有选择吸收,与已有报道一致。
By using the recursion method, the Green function of electric dipole moment in β-Si_3N_4 crystal is calculated based on the theoretical model established in this paper, and the infrared absorption coefficient is obtained. The calculated result is in agreement with the preceding experiments, that is, selective absorptions in β-Si_3N_4 exist in the spectral range from 7 to 30μm.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第5期393-397,共5页
Journal of Infrared and Millimeter Waves
关键词
Si3N4晶体
格林函数
红外吸收系数
β-Si_3N_4 crystal, Green funotion, infrared absorption coefficient.