半导体泵浦射流型亚稳态氩激光国际首次出光  

Demonstration of a diode pumped metastable argon laser in a plasma jet

作　　者：杨子宁 王蕊[1,2] 刘青山 孙健勇 袁茂辉 杨未强[1,3,4] 华卫红 韩凯[1,2,3] 王红岩 许晓军 Yang Zining;Wang Rui;Liu Qingshan;Sun Jianyong;Yuan Maohui;Yang Weiqiang;Hua Weihong;Han Kai;Wang Hongyan;Xu Xiaojun(College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China;Interdisciplinary Center for Quantum Information,National University of Defense Technology,Changsha 410073,China;State Key Laboratory of Pulsed Power Laser Technology,National University of Defense Technology,Changsha 410073,China;Hunan Provincial Key Laboratory of High Energy Laser Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学前沿交叉学科学院,长沙410073 [2]国防科技大学量子信息学科交叉中心,长沙410073 [3]脉冲功率激光技术国家重点实验室,长沙410073 [4]高能激光技术湖南省重点实验室,长沙410073

出　　处：《强激光与粒子束》2022年第2期1-2,共2页High Power Laser and Particle Beams

摘　　要：半导体泵浦亚稳态惰性原子激光是高能光泵浦气体激光领域具有潜力的新方案。已有报道均在约束的放电空间内产生亚稳态原子,功率放大受到多因素制约。为突破现有方案的局限,采用大气压等离子体射流方式在羽流区域产生高浓度亚稳态氩原子(1014 cm^(−3)量级),将放电和激光区域空间分离,利用811 nm窄线宽半导体激光器作为泵浦源,基于泵浦、激光和气流相互垂直的结构实现912 nm激光输出,有效拓展了该型激光体系的功率定标放大能力。Diode pumped metastable rare gas laser(DPRGL)is a potential candidate for single aperture scaled extremely high energy lasers.In the current studies,the metastable atoms were generated in confined discharge gaps,which limited the high power output.In this paper,a DPRGL in a plasma jet is firstly proposed and demonstrated.A high concentration of metastable argon atoms(about 1014 cm^(−3))is produced in the plume of an atmospheric plasma jet,which separates the discharge and gain regions.By using a 811 nm linewidth narrowed diode laser as pumping source,based on a“pump,laser and flow”mutually orthogonal configuration,the system realizes 912 nm laser output.The plasma jet type DPRGLs have the potential to break through the limitations of the existing schemes,and significantly improve the power scaling ability.

关 键 词：高能激光 光泵浦气体激光器 半导体激光器 亚稳态原子 等离子体射流 

分 类 号：O461.2[理学—电子物理学]