| 强场下的Li-like氖复合机制X光激光的数值模拟 |
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| 引用本文： | 邵云峰,Rose S J,Djaoui A. 强场下的Li-like氖复合机制X光激光的数值模拟[J]. 计算物理, 1996, 13(4): 454-458 |
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| 作者姓名： | 邵云峰 Rose S J Djaoui A |
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| 作者单位： | 1. 北京应用物理与计算数学研究所 100088;2. 英国卢瑟福实验室 |
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| 摘 要： | 论述了隧道电离和阈上电离加热过程。并把此二过程加到一个non-LTE平均原子模型,用此模型来研究强场下光致电离类锂氖复合机制X射线激光。计算结果表明,当驱动激光脉冲为100fs、波长为0.248μm、功率密度为2×1017Wcm-2,氖气的密度为10-3gcm-3时,类锂氖精细结构跃迁3d5/2→2p3/2(λ=98Å)的最大增益系数约为100cm-1,其维持时间约为1.5ps。
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| 关 键 词： | 隧道电离 阈上电离加热 增益 复合机制X射线激光 |
| 收稿时间： | 1995-07-13 |
NUMERICAL SIMULATION OF OPTICALLY IONISED LI-LIKE NEON PLASMA RECOMBINATION X-RAY LASERS |
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| Y F Shao,S J Rose,A Djaoui. NUMERICAL SIMULATION OF OPTICALLY IONISED LI-LIKE NEON PLASMA RECOMBINATION X-RAY LASERS[J]. Chinese Journal of Computational Physics, 1996, 13(4): 454-458 |
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| Authors: | Y F Shao S J Rose A Djaoui |
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| Affiliation: | 1. Institute of Applied Physics and Com putational Mathematics, P O Box 8009, Beijing 100088, P R China;2. Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX110QX, UK |
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| Abstract: | A non-LTE average atom model which has been modified to include tunnel ionisation and ATI heating is presented, and the model is applied to study the optically ionised Li-like Ne recombination X-ray laser. Results from the calculation show that high gain in Li-like Ne at 9.8 nm can be produced with a 100 fsec duration, 0.248μm laser of intensity 2×10-17Wcm-2 and the gas density of 10-3gcm-3. The duration of X-ray lasing is about 1.5 psec. |
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| Keywords: | Tunnel Ionisation Above Threshold Ionisation Game and Recombination X-ray lasers |
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