Pulse shape and spectrum of coherent diffraction-limited transition radiation from electron beams-Reference-Cited by-同舟云学术

Pulse shape and spectrum of coherent diffraction-limited transition radiation from electron beams

Published:2004-10 Issue:4 Volume:22 Page:415-422
ISSN:0263-0346
Container-title:Laser and Particle Beams
language:en
Short-container-title:Laser Part. Beams

Author:

VAN TILBORG J.,SCHROEDER C.B.,ESAREY E.,LEEMANS W.P.

Abstract

The electric field in the temporal and spectral domain of coherent diffraction-limited transition radiation is studied. An electron bunch, with arbitrary longitudinal momentum distribution, propagating at normal incidence to a sharp metal-vacuum boundary with finite transverse dimension is considered. A general expression for the spatiotemporal electric field of the transition radiation is derived, and closed-form solutions for several special cases are given. The influence of parameters such as radial boundary size, electron momentum distribution, and angle of observation on the waveform (e.g., radiation pulse length and amplitude) are discussed. For a Gaussian electron bunch, the coherent radiation waveform is shown to have a single-cycle profile. Application to a novel THz source based on a laser-driven accelerator is discussed.

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics

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