摘要
通过求解量子系统的密度矩阵方程，采用迭代法计算了光泵腔式ＮＨ３分子远红外激光的输出功率密度。在此基础上，对光泵腔式远红外激光的工作气压进行了理论研究。结果表明最佳工作气压与腔的功率反射系数、样品管的长度以及泵功率密度等工作参数之间是相互制约的，同时与参与激光过程的能级有关。在实验上采用电感性金属栅网作为反射器，设计制作出长度分别为１００ｃｍ、２０ｃｍ和１０ｃｍ的Ｆａｂｒｙ－Ｐｅｒｏｔ腔式远红外激光器，然后和ＴＥＡ－ＣＯ２激光器作泵浦源，成功地获得光泵ＮＨ３分子远红外激光，测量结果表明理论计算与实验数据相符。
y solving the density matrix equations of quantum system, the output power density of optically pumped cavity NH3FIR laser was calculated by means of iteration method. Based on the calculations above, the optimum operating gas pressune of cavity NH3-OPFIRLS wore studied, theoretically. Experimental by using inductive metallic meshes as reflectors and coupler. The F-P Cavity FIR lasers with a sample tube of 10, 20 and 100cm in length respectively were designecl and constructed. Meanwhile, FIR laser emicssions of cavity NH3lasers pumped by TEA-CO2.10R(8) and 9R(16) were measured. The experimental results were in good agreemert with our calculation.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
1998年第1期34-40,共7页
Journal of Atomic and Molecular Physics
基金
湖北省教委重点科研基金
关键词
光泵
腔式
远红外激光
气压
F-P光学振腔
氨分子
Optically punped far-infrared laser The optimization of operating parameter Fabry-perot optical resonant cavvty.
