| 短脉冲激光在实验室天体物理方面的研究进展 |
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| 引用本文： | 孙嘉宁,袁大伟,王菲鹿.短脉冲激光在实验室天体物理方面的研究进展[J].天文研究与技术,2021(2):248-254. |
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| 作者姓名： | 孙嘉宁 袁大伟 王菲鹿 |
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| 作者单位： | 中国科学院光学天文重点实验室（国家天文台）;中国科学院大学天文与空间科学学院 |
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| 基金项目： | 国家自然科学基金(11573040,11873061);科学挑战计划(TZ2016005)资助. |
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| 摘 要： | 随着啁啾脉冲放大技术(Chirped Pulse Amplification,CPA)的飞速发展,激光功率密度实现了飞跃式的提升,利用短脉冲激光开展实验室天体物理研究的条件日趋成熟。短脉冲激光与靶相互作用可以产生相对论粒子(正负电子、质子、中子等)和高能电磁辐射(X射线、γ射线),这些粒子和辐射的产生过程与天体中的某些物理现象相对应。介绍了利用短脉冲激光开展实验室天体物理的研究进展,重点介绍了核天体物理、空心离子光谱学、相对论无碰撞冲击波以及等离子体状态诊断等。
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| 关 键 词： | 实验室天体物理 核天体物理 空心离子光谱学 相对论无碰撞冲击波 等离子体诊断 |
Research Progress of Laboratory Astrophysics by Taking Advantage of Short Pulse Lasers |
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| Sun Jianing,Yuan Dawei,Wang Feilu.Research Progress of Laboratory Astrophysics by Taking Advantage of Short Pulse Lasers[J].Astronomical Research & Technology,2021(2):248-254. |
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| Authors: | Sun Jianing Yuan Dawei Wang Feilu |
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| Institution: | (CAS Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | With the development of Chirped Pulse Amplification(CPA),the laser power density has increased dramatically,which makes the conditions for using short-pulse lasers to conduct laboratory astrophysics research increasingly mature.A short pulse laser interacting with a target can produce relativistic particles(electrons,protons,neutrons)and intense radiation(X-ray,gamma-ray).These processes in experiments correspond to some extreme astronomical phenomena.The developments of laboratory astrophysics using short-pulse lasers are briefly introduced,such as(1)nuclear processes in astrophysical objects;(2)spectral studies of hollow ions;(3)collisionless shock waves;and(4)diagnostics.These developments demonstrate the potential of short-pulse lasers for performing a number of experiments in the realms of laboratory astrophysics. |
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| Keywords: | Laboratory astrophysics Nuclear astrophysics Spectral studies of hollow ions Collisionless shock waves Diagnostics |
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