Attosecond pulse generation from two-electron harmonic emission spectrum

In this paper, we theoretically investigate the high-order harmonic generation and attosecond pulse generation when a two-electron He atom is exposed to the intense laser pulse. It shows that due to the two-electron double recombination mechanism, an extended plateau beyond the classical single-elec...

Full description

Saved in:
Bibliographic Details
Published in:Chinese physics B 2015-03, Vol.24 (3), p.189-193
Main Author: 冯立强 刘航
Format: Article
Language:English
Subjects:
Attosecond pulses
Emission
Exposure
Extreme values
Harmonic generations
Harmonics
Lasers
Ultraviolet
单电子
发射光谱
强激光脉冲
扩展方案
脉冲生成
重组机制
阿秒脉冲
高次谐波
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, we theoretically investigate the high-order harmonic generation and attosecond pulse generation when a two-electron He atom is exposed to the intense laser pulse. It shows that due to the two-electron double recombination mechanism, an extended plateau beyond the classical single-electron harmonic has been obtained on the two-electron harmonic spectrum. Further by using this two-electron harmonic extension scheme combined with the two-color field, two supercontinuum bandwidths with 200 e V have been obtained. As a result, a series of sub-60 as extreme ultraviolet（XUV）pulses have been directly generated.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/3/034206