High-power femtosecond-laser pulse propagation in silica

被引：0

作者：

Ishikawa, K ^{[1
]}

Kumagai, H ^{[1
]}

Midorikawa, K ^{[1
]}

机构：

[1] RIKEN, Inst Phys & Chem Res, Laser Technol Lab, Wako, Saitama 3510198, Japan

来源：

SCIENCE OF SUPERSTRONG FIELD INTERACTIONS | 2002年 / 634卷

关键词：

D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a numerical study,of the (2 + 1)-dimensional propagation dynamics of femtosecond laser pulses in silica. Pulses whose power is tens to hundreds of times higher than the threshold for self-focusing is split into multiple cones during its propagation. This new structure is formed as a result of the interplay of strong Kerr self-focusing and plasma defocusing. The number of cones increases with incident pulse energy. The uncertainty which may be contained in the evaluation of plasma response and multiphoton band-to-band transition cross section does not affect our results much.

引用

页码：203 / 210

页数：8

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