Three-dimensional simulation of super-radiant Smith-Purcell radiation

doi:https://doi.org/10.1063/1.2204750

Title: Three-dimensional simulation of super-radiant Smith-Purcell radiation

Full Record
Other Related Research

Abstract

A simulation of coherent and super-radiant Smith-Purcell radiation is performed in the gigahertz regime using a three-dimensional particle-in-cell code. The simulation model supposes a rectangular grating to be driven by a single electron bunch and a train of periodic bunches, respectively. The true Smith-Purcell radiation is distinguished from the evanescent wave, which has an angle independent frequency lower than the minimum allowed Smith-Purcell frequency. We also find that the super-radiant radiations excited by periodic bunches are emitted at higher harmonics of the bunching frequency and at the corresponding Smith-Purcell angles.

Authors:

Li, D; Imasaki, K; Yang, Z; Park, Gun-Sik ^[1]

Institute for Laser Technology, 2-6 Yamada-oka, Suita, Osaka 565-0871 (Japan)

Publication Date:: 2006-05-15

OSTI Identifier:: 20779304

Resource Type:: Journal Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 88; Journal Issue: 20; Other Information: DOI: 10.1063/1.2204750; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAM BUNCHING; BEAM-PLASMA SYSTEMS; ELECTRON BEAMS; HARMONICS; PERIODICITY; PLASMA SIMULATION; THREE-DIMENSIONAL CALCULATIONS

Citation Formats


                    Li, D, Imasaki, K, Yang, Z, Park, Gun-Sik, Institute of High-Energy Electronics, University of Electronic Science and Technology of China, Chengdu 610054, and School of Physics, Seoul National University, Seoul 151-747. Three-dimensional simulation of super-radiant Smith-Purcell radiation.  United States: N. p., 2006. 
        Web.  doi:10.1063/1.2204750.

Copy to clipboard


                    Li, D, Imasaki, K, Yang, Z, Park, Gun-Sik, Institute of High-Energy Electronics, University of Electronic Science and Technology of China, Chengdu 610054, & School of Physics, Seoul National University, Seoul 151-747. Three-dimensional simulation of super-radiant Smith-Purcell radiation.  United States.  https://doi.org/10.1063/1.2204750

Copy to clipboard


                    Li, D, Imasaki, K, Yang, Z, Park, Gun-Sik, Institute of High-Energy Electronics, University of Electronic Science and Technology of China, Chengdu 610054, and School of Physics, Seoul National University, Seoul 151-747. Mon .  
        "Three-dimensional simulation of super-radiant Smith-Purcell radiation".  United States.  https://doi.org/10.1063/1.2204750.

Copy to clipboard


                    
@article{osti_20779304,

  title        = {Three-dimensional simulation of super-radiant Smith-Purcell radiation},

  author       = {Li, D and Imasaki, K and Yang, Z and Park, Gun-Sik and Institute of High-Energy Electronics, University of Electronic Science and Technology of China, Chengdu 610054 and School of Physics, Seoul National University, Seoul 151-747},

  abstractNote = {A simulation of coherent and super-radiant Smith-Purcell radiation is performed in the gigahertz regime using a three-dimensional particle-in-cell code. The simulation model supposes a rectangular grating to be driven by a single electron bunch and a train of periodic bunches, respectively. The true Smith-Purcell radiation is distinguished from the evanescent wave, which has an angle independent frequency lower than the minimum allowed Smith-Purcell frequency. We also find that the super-radiant radiations excited by periodic bunches are emitted at higher harmonics of the bunching frequency and at the corresponding Smith-Purcell angles.},

  doi          = {10.1063/1.2204750},

  url          = {https://www.osti.gov/biblio/20779304},
  journal      = {Applied Physics Letters},

  issn         = {0003-6951},

  number       = 20,

  volume       = 88,

  place        = {United States},

  year         = {2006},

  month        = {5}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1063/1.2204750

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Numerical modeling of a table-top tunable Smith-Purcell terahertz free-electron laser operating in the super-radiant regime

Journal Article Prokop, C ; Piot, P ; Accelerator Physics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 ; ... - Applied Physics Letters

Terahertz (THz) radiation occupies a very large portion of the electromagnetic spectrum and has generated much recent interest due to its ability to penetrate deep into many organic materials without the damage associated with ionizing radiation such as x-rays. One path for generating copious amount of tunable narrow-band THz radiation is based on the Smith-Purcell free-electron laser (SPFEL) effect. In this paper we propose a simple concept for a compact two-stage tunable SPFEL operating in the super-radiant regime capable of radiating at the fundamental bunching frequency. We demonstrate its capabilities and performances using the conformal finite-difference time-domain electromagnetic solver VORPAL.
https://doi.org/10.1063/1.3386543
Analysis of super-radiant Smith-Purcell emission

Journal Article Flory, Curt A - Journal of Applied Physics

Smith-Purcell emission is studied for a system with no incident field or electromagnetic feedback mechanism other than what is provided by the grating itself. A model is developed that analyzes the interaction between the electron beam and the grating electromagnetic modes. The system of equations is solved numerically, demonstrating linear emitted power versus current at low current levels and super-radiant power emission at higher currents. These results are compared to the previously published experimental data, and the model is used to gain some understanding of the physical mechanisms at work.
https://doi.org/10.1063/1.2178398
Simulation of a Smith-Purcell free-electron laser with sidewalls: Copious emission at the fundamental frequency

Journal Article Donohue, J T ; Gardelle, J - Applied Physics Letters

The two-dimensional theory of the Smith-Purcell free-electron laser of Andrews and Brau [H. L. Andrews and C. A. Brau, Phys. Rev. ST Accel. Beams 7, 070701 (2004)] predicts that coherent Smith-Purcell radiation can occur only at harmonics of the frequency of the evanescent wave that is resonant with the beam. A particle-in-cell simulation shows that in a three-dimensional context, where the lamellar grating has sidewalls, coherent Smith-Purcell radiation can be copiously emitted at the fundamental frequency, for a well-defined range of beam energy.
https://doi.org/10.1063/1.3641471
Start-to-end simulation of a Smith-Purcell free electron laser

Conference Prokop, C ; /Northern Illinois U. ; Piot, P ; ... - Conf.Proc.C100523:tupd075,2010

Terahertz (THz) radiation has generated much recent interest due to its ability to penetrate deep into many organic materials without the damage associated with ionizing radiations. Smith-Purcell free-electron lasers (SPFELs) offer a viable path toward generating copious amounts of narrow-band THz radiation. In this paper we present numerical simulations, performed with the conformal finite-difference time-domain electromagnetic solver VORPAL of a SPFEL operating in the superradiant regime. We first explore the standard (single grating) configuration and investigate the impact of incoming beamparameters. We also present a new concept based a double grating configuration to efficiently bunch the electron beam, followed bymore »« less
Full Text Available
Smith-Purcell radiation in the highly relativistic regime

Conference Walsh, J E ; Woods, K J ; Kirk, H G

An electron moving over the surface of a diffraction grating will transfer a part of its kinetic energy to radiation via a velocity synchronous coupling with a slow space harmonic component of the field. Since the phase velocity of a slow space harmonic is less than the speed of light, the slow components decay exponentially, or evanesce, with distance above the grating and the evanescence scale is determined by the product of the relative velocity, {beta}, the relative energy, {gamma}, and the wavelength {lambda}. Thus, in the relativistic regime, good electron - grating coupling can be maintained at beam heightsmore »« less
Full Text Available

Similar Records