Plasma generation in air by intense laser pulses with various pulse durations

被引：1

作者：

Qin, YD ^{[1
]}

Yang, H ^{[1
]}

Wang, SF ^{[1
]}

Zhu, CJ ^{[1
]}

Gong, QH ^{[1
]}

机构：

[1] Peking Univ, Dept Phys, Mesoscop Phys Lab, Beijing 100871, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 1999年 / 16卷 / 08期

关键词：

D O I：

10.1088/0256-307X/16/8/013

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the plasma generation through collecting the charged particles produced in laser-induced breakdown in atmospheric air. This breakdown is produced by ultrashort laser pulses with various durations ranging from 200 fs to 2 ps at a fixed pulse energy of 8 mJ. We found that the plasma yield increases first with the increment of pulse duration and then: reaches a plateau at a duration longer than 500 fs The generated plasma temperature is estimated to be higher than 5 x 10(5) K.

引用

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页码：580 / 582

页数：3

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