类锂-AI^(+10)离子4f-3d跃迁的软X射线ASE增益实验  

Experiments on soft X-ray ASE of Li-like Al^(+10) ions 4f-3d transition

作　　者：陈时胜[1] 徐至展[1] 林礼煌[1] 范品忠[1] 张正泉[1] 

机构地区：[1]中国科学院上海光学精密机械研究所

出　　处：《光学学报》1990年第9期769-774,共6页Acta Optica Sinica

基　　金：国家高技术;国家自然科学基金;中科院重大基金支持课题

摘　　要：在六路激光等离子体装置上已成功地进行了复合泵浦机制的软X射线自发发射放大(ASE)的演示实验.利用自制的针孔透射光栅谱仪,巳观测到激光产生的线状等离子体中,类理-Al^(+10)离子的4f-3d跃迁(154.7(?))的ASE增益放大.测量了一组不同长度线状等离子体的类锂-Al^(+10)离子4f-3跃迁线沿轴线发射的时间积分谱线强度.结果表明,该谱线发射强度随等离子体长度呈指数式增长,相应的增益系数为3.7±0.9cm^(-1),其最大增益长度积约为2.7.Experiments of soft X-ray amplified-spontareous-emission (ASE) based on recombination pumping scheme were successfully performed on the Six-beam high power Nd3+-glass laser facility of SIOM, Using a home-made pinhole transmission grating speotrography, ASE has been observed in Li-like Al+10 ions 4f-3d(154.7 A) transition in plasmas produced by irradiation of slab aluminum targets With line-focused laser light. Time integrated intensities of Li-like Al+10 ion spectral lines emitting along the axis of the plasmas were measured for a set of different plasma lengths. It is shown that the intensities of spectral lines of Li-like Al+10 4f-3d transition increase exponentially with increasing plasma lengths, and the correspon ding gain coefficient is 3.7±0.9cm-1. The maximum gain-length product being about 2.7.

关 键 词：软X射线 激光 增益系数 

分 类 号：TN241[电子电信—物理电子学]