Research PaperNo Access

Acceleration characteristics of hot electrons resulted from magnetic reconnection process driven by double-beam intense laser pulses in near critical density plasmas

Strong-Field and Ultrafast Photonics Lab, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China

Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing University of Technology, Beijing 100124, China

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Ping Zhou

https://orcid.org/0000-0001-8773-8056

Beijing Institute of Astronautic System Engineering, Beijing 100076, China

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Haiying Song

https://orcid.org/0000-0001-7454-0542

Strong-Field and Ultrafast Photonics Lab, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China

Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing University of Technology, Beijing 100124, China

E-mail Address: hysong@bjut.edu.cn

Corresponding authors.

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Wei Zhang

https://orcid.org/0009-0005-4093-0311

Strong-Field and Ultrafast Photonics Lab, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China

Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing University of Technology, Beijing 100124, China

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Qianglin Hu

https://orcid.org/0009-0007-6719-8241

Department of Physics and Electronics Engineering, Tongren University, TongRen 554300, China

E-mail Address: hu_qianglin@163.com

Corresponding authors.

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Wenlong Zhang

https://orcid.org/0009-0004-3220-3221

Strong-Field and Ultrafast Photonics Lab, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China

Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing University of Technology, Beijing 100124, China

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Chuanjun Liao

https://orcid.org/0000-0003-2456-8576

Beijing Institute of Astronautic System Engineering, Beijing 100076, China

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, and

Shibing Liu

https://orcid.org/0000-0001-6383-5011

Strong-Field and Ultrafast Photonics Lab, School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China

Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing University of Technology, Beijing 100124, China

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https://doi.org/10.1142/S0217984924502117Cited by:0 (Source: Crossref)

Abstract

In this work, we investigated the magnetic annihilation and reconnection and the resulted hot electron acceleration driven by double-beam intense laser pulses in two-layer near critical density (NCD) plasma target. The results are obtained by performing two-dimensional (2D) particle-in-cell (PIC) simulations. It is found that a quasi-mono-energetic peak can be formed in the energy spectrum of electrons accelerated by the process of magnetic field annihilation (MA) at cutoff energy. Electron spectra feature depends on the length of the second low-density layer. This suggests that the process of relativistic magnetic annihilation may be controlled in experiments by target design.

Keywords:

PACS: 52.38.−r, 96.60.Iv, 94.20.wc

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