Energy spread inhibition of compact electron bunch driven by circularly polarized laser pulse

The problem of energy dispersion of a direct laser accelerated electron bunch emerging from a nano-meshed graphene target is investigated. To study the effects of the laser polarization state on the energy spread, numerical calculations and particle-in-cell simulations of evolving one-dimensional co...

Full description

Saved in:
Bibliographic Details
Published in:Physics of plasmas 2012-08, Vol.19 (8)
Main Authors: Wen, Meng, Wu, Haicheng, Jin, Luling, Lu, Yuanrong, Chen, Jiaer, Yan, Xueqing
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM BUNCHING
Circularity
Computer simulation
COULOMB ENERGY
Dispersions
ELECTRON BEAMS
GRAPHENE
LASER RADIATION
Lasers
Nanomaterials
Nanostructure
ONE-DIMENSIONAL CALCULATIONS
PARTICLE ACCELERATORS
PLASMA PRODUCTION
PLASMA SIMULATION
POLARIZATION
PULSES
Spreads
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The problem of energy dispersion of a direct laser accelerated electron bunch emerging from a nano-meshed graphene target is investigated. To study the effects of the laser polarization state on the energy spread, numerical calculations and particle-in-cell simulations of evolving one-dimensional confined electron bunch dynamics are performed. It is proved that a circularly polarized laser pulse can inhibit energy dispersion more efficiently than a linearly polarized laser pulse with the same laser and target parameters. That is because the Coulomb expansion of the electron bunch gets more attenuated for a circularly polarized laser pulse compared with a linearly polarized pulse due to the slowly varying temporal laser intensity.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4748572