光泵亚毫米波激光的喇曼过程相互作用

Interaction of Raman Processes in Optically Pumped Submillimeter Wave Laser

在小型光泵ＮＨ３分子亚毫米波激光器中，喇曼过程的相互作用变成一个重要的效应，它直接影响了激光器的输出强度和频谱特性。用大功率ＣＯ２－９Ｒ（１６）谱线泵浦ＮＨ３分子时，两个喇曼过程ｓ→ａＰ（７，０）和ｓ→ａＰ（７，１）相互作用导致彼此增强；而当ＣＯ２－９Ｒ（３０）谱线泵浦时，出现多个喇曼过程相互竞争的现象。

In miniature optically pumped NH_3 submillimeter wave lasers,interaction of Raman processes becomes an important effect,which dominates the laser output intensity and spectral characteristics. AsCO_2-9R (16) laser line pumps NH_3, two Raman processes s→a P ( 7,0 ) and s→a P (7,1)interact and enhance each other,while CO_2- 9R (30) line pumping , competrtion among the Raman processes appears.