双纵模光泵亚毫米波激光中的能量交换过程  

Energy Exchange Process in Two-longitudinal-mode Optically Pumped Terahertz Laser

作　　者：张萍[1] 梁奂晖[1] 张迅[1] 丘茹曼[1] 罗锡璋[1] 

机构地区：[1]中山大学电子与通信工程系∥超快速激光光谱学国家重点实验室,广东广州510275

出　　处：《中山大学学报（自然科学版）》2001年第6期11-15,共5页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省自然科学基金资助项目 (970 139;0 0 1173)

摘　　要：采用半经典密度矩阵理论与迭代数值计算模型求解了九能级NH3 分子系统激光介质的增益系数 ;研究了双纵模光泵亚毫米波激光器的能量交换过程 ;计算并讨论了有关参数如工作气压、腔长等条件对输出光强的影响 。Based on the semi-classical density matrix equations and numerical iteration calculation, the gain coefficient of nine-energy-level NH 3 molecular system was figured out. Energy exchange process in two-longitudinal-mode optically pumped submillimeter wave laser was studied in detail. Laser output intensity was calculated and discussed in case of different operating parameters such as operating gas pressure, length of laser cavity. Finally the optimization rules were concluded.

关 键 词：亚毫米波激光 双纵模泵浦 能量交换过程 转换效率 输出功率 增益系数 

分 类 号：TN245[电子电信—物理电子学]