Isolated short attosecond pulse generation by a spatially inhomogeneous combined field-Reference-Cited by-同舟云学术

Isolated short attosecond pulse generation by a spatially inhomogeneous combined field

Published:2022-07-11 Issue:10 Volume:77 Page:949-961
ISSN:0932-0784
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Hu Yueqiang¹,Zhang Gangtai¹²^ORCID,Bai Tingting³,Wu Junxiao¹,Song Yunmei¹,Wang Ziqi¹,Yang Zhihuai¹,Wang Yuxing¹,Zhang Qian¹,Zhao Xi⁴

Affiliation:

1. Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences , Baoji 721016 , China

2. Collaborative Innovation Center of Rare-Earth Optical Functional Materials and Devices Development , Baoji University of Arts and Sciences , Baoji 721016 , China

3. School of Mathematics and Information Science , Baoji University of Arts and Sciences , Baoji 721013 , China

4. School of Physics and Information Technology , Shaanxi Normal University , Xian 66506 , China

Abstract

Abstract We present a theoretical investigation of high-order harmonics and isolated short attosecond pulse generation by a spatially inhomogeneous combined field. The calculation results show that this spatiotemporally synthesized field can not only extend the spectral cutoff but also realize the quantum path control, whereupon an ultrawide supercontinuum with a smooth and regular structure is generated. By filtering a wide range of continuous harmonics around the cutoff region, an isolated 17.6 as pulse with a bandwidth of 279 eV is directly obtained without any phase compensation. Moreover, we also investigate the influence of the CEP, time delay, spatial nonhomogeneity, and laser intensity on the harmonic spectrum.

Funder

Scientific Research Program Funded by Shaanxi Provincial Education Department

College Student Innovation Training Plan of Baoji University of Arts and Sciences

Science and Technology Plan Project of Baoji

National Undergraduate Training Program for Innovation and Entrepreneurship

National Natural Science Foundation of China

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-2022-0047/pdf

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