Soft-x-ray emission from small-sized Ne clusters heated by intense, femtosecond laser pulses

被引：13
|
作者：
Mocek, T [1 ]
Kim, CM [1 ]
Shin, HJ [1 ]
Lee, DG [1 ]
Cha, YH [1 ]
Hong, KH [1 ]
Nam, CH [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Phys, Yusong Gu, Taejon 305701, South Korea
来源：
PHYSICAL REVIEW E | 2000年 / 62卷 / 03期
关键词：
D O I：
10.1103/PhysRevE.62.4461
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Soft-x-ray emission from a cryogenically cooled Ne jet irradiated; by intense, 25-fs laser pulses was measured. The Ne spectrum started to drastically change in emitting ions from Ne5+ to Ne7+ below the preexpansion temperature of - 120 degrees C. The significant change in the spectrum is attributed to the collisional heating of small-sized Ne clusters formed in the cooled jet. The increase of the laser pulse length from 25 fs to 100 fs resulted in further increase of x-ray emission from Ne7+ states.
引用
收藏
页码：4461 / 4464
页数：4
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