Wakefield generation by chirped super- Gaussian laser pulse in inhomogeneous plasma

Zhengwei YAO (姚征伟); Lihong CHENG (成丽红); Rongan TANG (唐荣安); Jukui XUE (薛具奎)

doi:10.1088/2058-6272/aacbbf

Plasma Science and Technology > 2018 > 20(11): 115002. > DOI: 10.1088/2058-6272/aacbbf

Zhengwei YAO (姚征伟), Lihong CHENG (成丽红), Rongan TANG (唐荣安), Jukui XUE (薛具奎). Wakefield generation by chirped super- Gaussian laser pulse in inhomogeneous plasma[J]. Plasma Science and Technology, 2018, 20(11): 115002. DOI: 10.1088/2058-6272/aacbbf

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Wakefield generation by chirped super- Gaussian laser pulse in inhomogeneous plasma

College of Physics and Electronics Engineering, Northwest Normal University, Lanzhou 730070, People’s Republic of China

Funds: This work is supported by National Natural Science Foun- dation of China (Nos. 11765017, 11764039, 11475027, 11274255 and 11305132), the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20136203110001) and the Scientific Research Project of Gansu Higher Education (No. 2016A-005).

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Received Date: March 11, 2018

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Abstract

Abstract

We study the effect of nonlinearly chirped super-Gaussian (SG) laser pulse on wakefield generation in an inhomogeneous plasma. The different types of nonlinearly chirped pulse are employed, and different kinds of inhomogeneous plasma density are used. The maximum wakefield amplitude as the function of nonlinearly chirped laser pulse and inhomogeneous plasma density in parameter space are obtained. Moreover, the dependence of the maximum wakefield amplitude on the SG laser pulse index is discussed. This shows that a larger wakefield can be obtained when the chirped pulse and inhomogeneous density are in the critical regions. Wakefield generation can be controlled by adjusting the chirped SG pulse and inhomogeneous plasma density parameters. That is, we provide an efficient way for the controlled generation of the wakefield.
- laser-plasma interaction,
- inhomogeneous plasma,
- plasma wakefield

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References (52)

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