Cerenkov radiation diagnostics of hot electrons generated by fs-laser interaction with solid targets

被引：25

作者：

Brandl, F

Pretzler, G

Habs, D

Fill, E

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[2] Univ Munich, D-85748 Garching, Germany

来源：

EUROPHYSICS LETTERS | 2003年 / 61卷 / 05期

关键词：

D O I：

10.1209/epl/i2003-00118-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new method of diagnostics of hot electrons from a laser-produced plasma is experimentally demonstrated. Titanium-sapphire laser pulses (1 J/130 fs) irradiate copper foils backed by a dielectric. The energy distribution and direction of the hot electrons generated is determined by recording visible Cerenkov radiation with spatial resolution. The results demonstrate a change in the electron generation mechanism at relativistic intensities.

引用

收藏

页码：632 / 638

页数：7

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