类锂硅离子软X射线激光研究  

The Study for Soft-X-Ray Laser in Li-Like Silicon Ion

作　　者：范文慧[1] 王永昌[1] 袁萍[1] 

机构地区：[1]西安交通大学物理系,西北师范大学物理系

出　　处：《光学学报》1995年第2期161-165,共5页Acta Optica Sinica

摘　　要：在激光等离子体典型参数条件下，利用磁撞－辐射模型计算了类锂硅离子５ｆ－３ｄ和４ｆ－３ｄ跃迁的粒子数反转比率和激光增益系数。讨论了不同热带条件和不同冷却速度下，激光增益系数的变化。计算结果表明，高功率、短脉冲激光产生的高温等离子体在快速冷却条件下能产生软Ｘ射线激光增益。Under the typical parameter conditions of laser-produced plasma, thepopulation inversion-ratio values and gain coefficients for transitions 5f-3d and 4f-3din Li-like silicon ion are calculated by using the collisional-radiative model. We havediscussed the effects of different thermal band selections and cooling velocity on thecalctilated laser gain c,JefficientS. The calculated resultS show that, when the temperatureof the hot plasma is very rapidly lowered after the short driving laser pulse, there aregains ill the 4f-3d and 5f-3d transitions.

关 键 词：激光 软X射线 类锂硅离子 

分 类 号：TN241[电子电信—物理电子学]