Self-focusing of intense laser pulses in a clustered gas

被引:82
作者
Alexeev, I [1 ]
Antonsen, TM
Kim, KY
Milchberg, HM
机构
[1] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA
[2] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA
关键词
D O I
10.1103/PhysRevLett.90.103402
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report the self-focusing of intense laser pulses in gases composed of atomic clusters. This is in strong contrast to beam spreading owing to ionization-induced refraction commonly observed in nonclustered gases. The effect is explained in terms of the ensemble average transient polarizability of the heated clusters as they explode in response to the intense pulse.
引用
收藏
页码:4 / 103402
页数:4
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