飞秒强激光经氩气和氩团簇的传播  

Propagation of Intense Femtosecond Laser Pulses in Ar Gas and Ar Clusters

作　　者：王向欣[1] 王成[1] 李邵辉[1] 倪国权[1] 徐至展[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光子学报》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

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.

关 键 词：非线性光学 飞秒激光 氩气 氩团簇 

分 类 号：O437[机械工程—光学工程]