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Title: Electron acceleration by a chirped Gaussian laser pulse in vacuum

Abstract

Electron acceleration by a chirped Gaussian laser pulse is investigated numerically. A linear and negative chirp is employed in this study. At first, a simple analytical description for the chirp effect on the electron acceleration in vacuum is provided in one-dimensional model. The chirp mechanism is then extended to the interaction of a femtosecond laser pulse and electron. The electron final energy is obtained as a function of laser beam waist, laser intensity, chirp parameter, and initial phase of the laser pulse. It is shown that the electron final energy depends strongly on the chirp parameter and the initial phase of the laser pulse. There is an optimal value for the chirp parameter in which the electron acceleration takes place effectively. The energy gain increases with laser beam waist and intensity. It is also shown that the electron is accelerated within a few degrees to the axial direction. Emphasis is on the important aspect of the chirp effect on the energy gained by an electron from the electromagnetic wave.

Authors:
; ;  [1]
  1. Physics Department, Science Faculty, Mazandaran University, Babolsar (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
20860460
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 13; Journal Issue: 12; Other Information: DOI: 10.1063/1.2405345; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 07 ISOTOPES AND RADIATION SOURCES; ACCELERATION; ELECTROMAGNETIC RADIATION; ELECTRONS; GAIN; LASERS; LIGHT TRANSMISSION; MODULATION; NUMERICAL ANALYSIS; PLASMA; PLASMA GUNS; PULSES

Citation Formats

Sohbatzadeh, F, Mirzanejhad, S, and Ghasemi, M. Electron acceleration by a chirped Gaussian laser pulse in vacuum. United States: N. p., 2006. Web. doi:10.1063/1.2405345.
Sohbatzadeh, F, Mirzanejhad, S, & Ghasemi, M. Electron acceleration by a chirped Gaussian laser pulse in vacuum. United States. https://doi.org/10.1063/1.2405345
Sohbatzadeh, F, Mirzanejhad, S, and Ghasemi, M. 2006. "Electron acceleration by a chirped Gaussian laser pulse in vacuum". United States. https://doi.org/10.1063/1.2405345.
@article{osti_20860460,
title = {Electron acceleration by a chirped Gaussian laser pulse in vacuum},
author = {Sohbatzadeh, F and Mirzanejhad, S and Ghasemi, M},
abstractNote = {Electron acceleration by a chirped Gaussian laser pulse is investigated numerically. A linear and negative chirp is employed in this study. At first, a simple analytical description for the chirp effect on the electron acceleration in vacuum is provided in one-dimensional model. The chirp mechanism is then extended to the interaction of a femtosecond laser pulse and electron. The electron final energy is obtained as a function of laser beam waist, laser intensity, chirp parameter, and initial phase of the laser pulse. It is shown that the electron final energy depends strongly on the chirp parameter and the initial phase of the laser pulse. There is an optimal value for the chirp parameter in which the electron acceleration takes place effectively. The energy gain increases with laser beam waist and intensity. It is also shown that the electron is accelerated within a few degrees to the axial direction. Emphasis is on the important aspect of the chirp effect on the energy gained by an electron from the electromagnetic wave.},
doi = {10.1063/1.2405345},
url = {https://www.osti.gov/biblio/20860460}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 12,
volume = 13,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}