Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interaction
In this paper, the effects of the pulse rise-time in the performance of the electron heating in the interaction of intense laser pulse with under-dense plasma have been investigated using the particle-in-cell (PIC) simulation code. In this way, two laser pulses with a length of 200 fs and different...
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| Format: | Article |
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Nuclear Science and Technology Research Institute
2021-04-01
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| Series: | مجله علوم و فنون هستهای |
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| Online Access: | https://jonsat.nstri.ir/article_1190_c19b3d6713b73db673f5319f56664d0a.pdf |
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| author | E. Khalilzadeh A. Chakhmachi J. Yazdanpanah |
| author_facet | E. Khalilzadeh A. Chakhmachi J. Yazdanpanah |
| author_sort | E. Khalilzadeh |
| collection | DOAJ |
| description | In this paper, the effects of the pulse rise-time in the performance of the electron heating in the interaction of intense laser pulse with under-dense plasma have been investigated using the particle-in-cell (PIC) simulation code. In this way, two laser pulses with a length of 200 fs and different pulse rise-time of 80 fs and 40 fs have been selected. The laser intensity and the plasma density are I=1018 w/cm2 and n=0.02 ncr (ncr is the plasma critical density), respectively. To correctly characterize the local plasma temperature in different regions of plasma, the stress tensor elements have been used. Our results show that the electron heating and the temperature of the electrons are strongly dependent on the laser pulse rise-time and increase significantly with decreasing the pulse rise-time. In other words, when the pulse rise-time is initially smooth (80 fs), the scattering fields can provide the necessary condition for stochastic heating. Whereas, in the quickly rising pulses (40 fs), the electron heating is initiated by the wave breaking. In the following, the effect of increasing the laser pulse intensity on the electron heating is investigated for the pulses with different rise-times, hence these effects are more severe for the pulses with the short rise-time. |
| first_indexed | 2024-04-09T14:52:51Z |
| format | Article |
| id | doaj.art-26b8f0f24b86454fb357a02988472cf7 |
| institution | Directory Open Access Journal |
| issn | 1735-1871 2676-5861 |
| language | fas |
| last_indexed | 2024-04-09T14:52:51Z |
| publishDate | 2021-04-01 |
| publisher | Nuclear Science and Technology Research Institute |
| record_format | Article |
| series | مجله علوم و فنون هستهای |
| spelling | doaj.art-26b8f0f24b86454fb357a02988472cf72023-05-02T09:06:29ZfasNuclear Science and Technology Research Instituteمجله علوم و فنون هستهای1735-18712676-58612021-04-014219810610.24200/nst.2021.11901190Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interactionE. Khalilzadeh0A. Chakhmachi1J. Yazdanpanah2Plasma and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute, AEOI, P.O. Box: 14399-51113, Tehran, IranPlasma and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute, AEOI, P.O. Box: 14399-51113, Tehran, IranPlasma and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute, AEOI, P.O. Box: 14399-51113, Tehran, IranIn this paper, the effects of the pulse rise-time in the performance of the electron heating in the interaction of intense laser pulse with under-dense plasma have been investigated using the particle-in-cell (PIC) simulation code. In this way, two laser pulses with a length of 200 fs and different pulse rise-time of 80 fs and 40 fs have been selected. The laser intensity and the plasma density are I=1018 w/cm2 and n=0.02 ncr (ncr is the plasma critical density), respectively. To correctly characterize the local plasma temperature in different regions of plasma, the stress tensor elements have been used. Our results show that the electron heating and the temperature of the electrons are strongly dependent on the laser pulse rise-time and increase significantly with decreasing the pulse rise-time. In other words, when the pulse rise-time is initially smooth (80 fs), the scattering fields can provide the necessary condition for stochastic heating. Whereas, in the quickly rising pulses (40 fs), the electron heating is initiated by the wave breaking. In the following, the effect of increasing the laser pulse intensity on the electron heating is investigated for the pulses with different rise-times, hence these effects are more severe for the pulses with the short rise-time.https://jonsat.nstri.ir/article_1190_c19b3d6713b73db673f5319f56664d0a.pdfelectron heatinglaser-plasma interactionparticle simulationpulse rise-timestress tensor element |
| spellingShingle | E. Khalilzadeh A. Chakhmachi J. Yazdanpanah Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interaction مجله علوم و فنون هستهای electron heating laser-plasma interaction particle simulation pulse rise-time stress tensor element |
| title | Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interaction |
| title_full | Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interaction |
| title_fullStr | Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interaction |
| title_full_unstemmed | Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interaction |
| title_short | Dependency of the stochastic heating of electrons on the pulse rise-time in intense laser-plasma interaction |
| title_sort | dependency of the stochastic heating of electrons on the pulse rise time in intense laser plasma interaction |
| topic | electron heating laser-plasma interaction particle simulation pulse rise-time stress tensor element |
| url | https://jonsat.nstri.ir/article_1190_c19b3d6713b73db673f5319f56664d0a.pdf |
| work_keys_str_mv | AT ekhalilzadeh dependencyofthestochasticheatingofelectronsonthepulserisetimeinintenselaserplasmainteraction AT achakhmachi dependencyofthestochasticheatingofelectronsonthepulserisetimeinintenselaserplasmainteraction AT jyazdanpanah dependencyofthestochasticheatingofelectronsonthepulserisetimeinintenselaserplasmainteraction |