强激光与粒子束, 2004, 16 (5): 593, 网络出版: 2006-05-15
飞秒激光与固体靶相互作用中自生磁场的测量
Measurement of spontaneous magnetic field in the interactionsof femtosecond laser with solid targets
自生磁场 OMA谱仪 2倍频谐波 飞秒激光等离子体 Spontaneous magnetic field OMA spectrometry 2 doubling harmonics Femtosecond laser-plasma
摘要
利用OMA光学多道分析谱仪,分别在激光镜反方向和接近靶面法线方向测量了2倍频谐波的精细结构.在激光功率密度为5×1017W/cm2的条件下,通过散射光2倍频谐波谱的精细结构,回推出激光与等离子体相互作用中产生的自生磁场达100T量级.
Abstract
The experiment measured the fine spectrum structure of 2 doubling harmonic at near normal direction of target and reflection direction of laser wave, employing OMA optical multi-channel spectrometer. Under the intensity of 5×1017W/cm2, the result of measurement indicates that spontaneous magnetic field was up to 102T level by analyzing the fine structure of 2 doubling harmonics in laser-plasma interaction.
焦春晔, 谷渝秋, 张保汉, 郑志坚, 杨向东, 蔡达峰, 周维民, 温天舒, 王光昶, 陈豪. 飞秒激光与固体靶相互作用中自生磁场的测量[J]. 强激光与粒子束, 2004, 16(5): 593. JIAO Chun-ye, GU Yu-qiu, ZHANG Bao-han, ZHENG Zhi-jian, YANG Xiang-dong, CAI Da-feng, ZHOU Wei-min, WEN Tian-shu, WANG Guang-chang, CHEN Hao. Measurement of spontaneous magnetic field in the interactionsof femtosecond laser with solid targets[J]. High Power Laser and Particle Beams, 2004, 16(5): 593.
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