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高功率激光驱动器光束匀滑技术的研究进展 被引量:8

Research Progress of Beam Smoothing in High Power Laser Driver
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摘要 改善激光在靶面的辐照均匀性,一直是惯性约束聚变(ICF)驱动器中非常关键的课题,在过去的30多年里已经发展了多种光束匀滑技术。其中空间匀滑技术可以控制焦斑的包络形状并改善大空间尺度的辐照均匀性,时间匀滑技术则可消除焦斑内部高空间频率的强度调制。综述了国内外现有的各种光束匀滑技术及其进展,并对"神光Ⅱ"激光装置的光束匀滑要求、拟采用的光束匀滑路线及其中关键技术单元的研究进展做简单介绍。 The improvement of the uniformity of on-target irradiation has long been a critical task for Inertial confinement fusion(ICF)laser driver.A number of smoothing techniques have been developed in the past decades.Spatial techniques can control the target spot envelope and improve the irradiation uniformity of large spatial scale,while temporal techniques can smooth the beam by eliminating intensity modulation of short wavelength inside the spot.A comprehensive review on this field is made,and a brief introduction of the smoothing requirements for the facility "SG Ⅱ" is given,as well as the development of smoothing techniques used in it.
出处 《激光与光电子学进展》 CSCD 北大核心 2010年第9期22-29,共8页 Laser & Optoelectronics Progress
基金 广东工业大学博士启动基金(073053)资助课题
关键词 激光光学 惯性约束聚变 高功率激光驱动器 靶面均匀辐照 空间匀滑 时间匀滑 laser optics inertial confinement fusion high power laser driver uniform on-target irradiation spatial smoothing temporal smoothing
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