NDLI: Generation of Compressed GeV-Electron Bunch by Intense Short Pulse Laser

Content Provider	IEEE Xplore Digital Library
Author	Miyazaki, S. Sakai, K. Sonobe, R. Hasumi, S. Kikuchi, T. Kawata, S.
Copyright Year	2005
Description	Author affiliation: Dept. of Mater. Sci. & Eng., Utsunomiya Univ. (Miyazaki, S.)
Abstract	Summary form only given. A purpose of this study is the generation of a high energy density and short size electron bunch by a focused intense short pulse laser of a TEM(1,0)+TEM(0,1) mode in vacuum. In our previous research, we presented that the TEM(1,0)+TEM(0,1) mode laser has a potential well in transverse and suppresses a transverse electron divergence by the transverse ponderomotive force. Therefore a low emittance electron bunch is produced near the laser axis after the interaction between the laser and the electrons. In this paper, we clarify the detail of the acceleration mechanism of the electrons and also present the electron bunch compression effect in our acceleration mechanism. The acceleration of the electron bunch confined comes from not the longitudinal ponderomotive force but the longitudinal electric field. In the case of the focused TEM(1,0)+TEM(0,1) mode laser, the longitudinal electric field has the maximum at the central axis. Consequently the electrons confined are mainly accelerated and compressed by the longitudinal electric field in the longitudinal direction. In our 3-dimensional particle simulations, the electrons are accelerated to the order of 0.5 GeV, and the normalized rms emittance is about $10^{-6}$ pimrad at the following parameter values: $a_{0}$ = 10 (here, $a_{0}$ is the dimensionless parameter of the laser intensity), the wavelength of lambda = 0.8 mum, the pulse length of 5lambda, the minimal spot size of 20lambda, and the initial energy of the electrons is 3.62 MeV. The electron bunch accelerated and confined is also compressed to the order of a few femtoseconds in the longitudinal direction. In this paper, we also found a scaling law for the maximum electron energy. Both the simulation and analytical estimation results show that the maximum electron energy is proportional to $a_{0}$ in a relativistic region
Sponsorship	Plasma Sci. Appl. Comm. IEEE Nucl. Plasma Sci. Soc.
Starting Page	132
Ending Page	132
File Size	1262079
Page Count	1
File Format	PDF
ISBN	0780393007
ISSN	07309244
DOI	10.1109/PLASMA.2005.359105
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical pulse generation Pulse compression methods Acceleration Protons Electron emission Laser modes Particle beams Optical pulses Power engineering and energy Laser beams
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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