| 1.06μm连续与脉冲激光对GaAs材料的联合破坏效应 |
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| 引用本文： | 肖峻,吕百达.1.06μm连续与脉冲激光对GaAs材料的联合破坏效应[J].强激光与粒子束,1998,10(2):0-238. |
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| 作者姓名： | 肖峻 吕百达 |
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| 作者单位： | 1.国防科技大学应用物理系, 湖南长沙,41 0073 |
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| 基金项目： | 中物院高温高密度等离子体物理重点实验室基金,国家863惯性约束聚变领域资助 |
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| 摘 要： | 通过1.06μm连续激光和脉冲激光联合破坏GaAs材料的实验研究, 给出了GaAs材料在三种不同的连续激光功率密度辐照下, 所需脉冲激光的破坏阈值, 结果表明, 联合破坏时所需脉冲激光的破坏阈值小于单独使用脉冲激光的破坏阈值。根据轴对称二维热模型, 计算了三种情况下连续激光辐照时GaAs材料的表面温度分布曲线及表面辐照中心处温升随辐照时间的关系, 并估算了其后作用的脉冲激光对材料的温升, 对实验及计算结果进行了分析, 并着重比较了联合破坏方式和单独破坏方式的优缺点。
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| 关 键 词： | 连续激光 脉冲激光 GaAs材料 破坏效应 |
| 收稿时间： | 1900-01-01; |
OPTIMIZATION OF THE CONFIGURATION OF BEAMS FOR LASER DIRECT DRIVEN FUSION |
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| Xiao Jun,Lu Baida,Yuan Xiaodong and Feng Guoying Institute of Laser Physics and Chemistry,Sichuan University,Chengdu.OPTIMIZATION OF THE CONFIGURATION OF BEAMS FOR LASER DIRECT DRIVEN FUSION[J].High Power Laser and Particle Beams,1998,10(2):0-238. |
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| Authors: | Xiao Jun Lu Baida Yuan Xiaodong and Feng Guoying Institute of Laser Physics and Chemistry Sichuan University Chengdu |
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| Affiliation: | 1.Laboratory of Computational Physics,Institute of Applied Physics and Computational Mathematics,P.O.Box 8009,100088,Beijing |
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| Abstract: | In order to improve the irradiation uniformity of spherical target for laser direct driven sfsion, it is necessary optimizing the configuration of beams. By analyzing the geometrical factor of the spherical-harmonic modes, the general rules are proposed for optimizing the configuration of beams. According to the rules, one can obtain higher irradiation uniformity under the case of limited number of beams. Some typical examples that satisfy the rules are presented. |
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| Keywords: | laser direct driven fusion configuration of beams spherical-harmonic mode geometrical factor irradiation uniformity |
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