Attosecond pulse generation from two-electron harmonic emission spectrum

doi:10.1088/1674-1056/24/3/034206

中国物理B ›› 2015, Vol. 24 ›› Issue (3): 34206-034206.doi: 10.1088/1674-1056/24/3/034206

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Attosecond pulse generation from two-electron harmonic emission spectrum

冯立强^{a b}, 刘航^c

a College of Science, Liaoning University of Technology, Jinzhou 121000, China;
b State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
c School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121000, China

收稿日期:2014-08-25 修回日期:2014-09-26 出版日期:2015-03-05 发布日期:2015-03-05
基金资助:
Project supported by the Scientific Research Fund of Liaoning Provincial Education Department, China (No. L2014242) and the Scientific Research Fund of Liaoning University of Technology, China (Grant Nos. X201319 and X201312).

Attosecond pulse generation from two-electron harmonic emission spectrum

Feng Li-Qiang (冯立强)^{a b}, Liu Hang (刘航)^c

a College of Science, Liaoning University of Technology, Jinzhou 121000, China;
b State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
c School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121000, China

Received:2014-08-25 Revised:2014-09-26 Online:2015-03-05 Published:2015-03-05
Contact: Feng Li-Qiang, Liu Hang E-mail:lqfeng_lngy@126.com;liuhang20@126.com
Supported by:
Project supported by the Scientific Research Fund of Liaoning Provincial Education Department, China (No. L2014242) and the Scientific Research Fund of Liaoning University of Technology, China (Grant Nos. X201319 and X201312).

摘要/Abstract

摘要：

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 eV have been obtained. As a result, a series of sub-60 as extreme ultraviolet (XUV) pulses have been directly generated.

关键词: high-order harmonic generation, attosecond extreme ultraviolet pulse, two-electron model

Abstract:

Key words: high-order harmonic generation, attosecond extreme ultraviolet pulse, two-electron model

中图分类号: (Frequency conversion; harmonic generation, including higher-order harmonic generation)

42.65.Ky

42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 32.80.Fb (Photoionization of atoms and ions)

冯立强, 刘航. Attosecond pulse generation from two-electron harmonic emission spectrum[J]. 中国物理B, 2015, 24(3): 34206-034206.

Feng Li-Qiang (冯立强), Liu Hang (刘航). Attosecond pulse generation from two-electron harmonic emission spectrum[J]. Chin. Phys. B, 2015, 24(3): 34206-034206.

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Attosecond pulse generation from two-electron harmonic emission spectrum

Attosecond pulse generation from two-electron harmonic emission spectrum

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