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.
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页码：580 / 582
页数：3
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