Chirp waveform control to produce broad harmonic plateau and single attosecond pulse-Reference-Cited by-同舟云学术

Chirp waveform control to produce broad harmonic plateau and single attosecond pulse

Published:2021-06-25 Issue:9 Volume:76 Page:747-755
ISSN:0932-0784
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Liu Hang¹,Xu Cui-Yan¹,Jing Xiao-Dan¹,Qiao Yan²,Feng Li-Qiang¹

Affiliation:

1. Laboratory of Molecular Reaction Dynamics , Liaoning University of Technology , Jinzhou , 121001 , China

2. Department of Pathophysiology , Basic Medical College of Zhengzhou University , Zhengzhou , 450001 , China

Abstract

Abstract Waveform control of three kinds of chirped pulses (i.e. βt, βt 2 and βt 3) to produce harmonic spectra and attosecond pulses has been investigated. It is found that by properly choosing the chirps, the chirp delays and the other laser parameters, not only the instantaneous frequency of some specific half profiles can be decreased, but also its intensity can be increased. As a result, the free electron can receive more energy when it accelerates in these regions, thus leading to the extension of the harmonic cutoff and harmonic plateau. Finally, through the Fourier transformation of the harmonic spectra and by superposing some harmonics, three single attosecond pulses with the durations of 30 as, 33 as and 39 as can be obtained.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-2021-0115/pdf

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