摘要
通过数值求解三维电场传播方程,理论模拟了飞秒强激光脉冲(50fs,1016w/cm2)在氩气和中等尺寸氩团簇中的传播效应.结果表明,飞秒强激光脉冲经氩气传播将发生频谱蓝移展宽和光束发散;而经中等尺寸氩团簇传播,则存在一定程度的自聚焦效应.
The propagation of intense femtosecond laser pulses（50 fs, 10^16 w/cm^2） in Ar gas and middlesize Ar clusters is modelled by solving 3D propagation equation numerically. The results show that the intense femtosecond laser pulses propagating in Ar gas will experience ionization-induced modulations, including spectral blueshifting and beam refraction, while self-focusing may occur for the intense femtosecond laser pulses propagating in Ar clusters.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2005年第7期961-963,共3页
Acta Photonica Sinica
基金
国家自然科学基金(No.29890210)
上海科技基金(No.0159nm022)资助
关键词
非线性光学
飞秒激光
氩气
氩团簇
Nonlinear optics
Femtosecond laser pulse
Ar gas
Ar clusters
