Simulation and experiments of the laser induced breakdown of air for femtosecond to nanosecond order pulses
Simulation and experiments of the laser induced breakdown of air for femtosecond to nanosecond order pulses
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飞秒至纳秒级脉冲激光诱导空气击穿的模拟与实验
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
K. Akihama
中科院分区：
文献类型：
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作者：
J. Koga;K. Moribayashi;Y. Fukuda;S. V. Bulanov;A. Sagisaka;K. Ogura;H. Daido;M. Yamagiwa;T. Kimura;T. Fujikawa;Masaki Ebina;K. Akihama
给出了激光诱导空气击穿的3D + 1维模拟和实验结果。模拟包括激光传输，多光子和碰撞电离和加热的电子使用精确的原子和分子数据。对于脉宽为100 fs ~ 1 ns的激光脉冲，根据脉冲宽度和强度，从光场电离到电子碰撞电离，提出了空气击穿的机理，击穿所需的激光能量与实验结果符合较好。
3D + 1 dimensional simulations and experimental results for the laser induced breakdown of air are presented. The simulations include the laser propagation, multi-photon and impact ionization and heating of the electrons using accurate atomic and molecular data. For laser pulses of duration from 100 fs to 1 ns mechanisms for the breakdown of air based on the pulse duration and intensity ranging from optical field ionization to electron impact ionization are found. The laser energies at which the breakdown occurs are found to be in good agreement with experimental results.