Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier

D J Dunning, B W J McNeil, N R Thompson, P H Williams

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A free electron laser (FEL) in a mode-locked optical klystron (MLOK) configuration is modelled using start-to-end simulations that simulate realistic electron beam acceleration and transport before input into a full three-dimensional FEL simulation code. These simulations demonstrate that the MLOK scheme is compatible with the present generation of radiofrequency accelerator designs. A train of few-optical cycle pulses is predicted with peak powers similar to those of the equivalent conventional FEL amplifier. The role of electron beam energy modulation in these results is explained and the limitations of some simulation codes discussed. It is shown how seeding the FEL interaction using a High Harmonic seed laser can improve the coherence properties of the output.
LanguageEnglish
Article number073104
Number of pages8
JournalPhysics of Plasmas
Volume18
Issue number7
Early online date21 Jul 2011
DOIs
Publication statusPublished - 2011

Fingerprint

free electron lasers
amplifiers
simulation
electron beams
inoculation
seeds
accelerators
harmonics
modulation
cycles
output
configurations
pulses
lasers
interactions
energy

Keywords

  • free electron laser
  • short laser pulses
  • attosecond pulse
  • mode locking

Cite this

@article{abd27a1783144c919e7479dad157ab21,
title = "Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier",
abstract = "A free electron laser (FEL) in a mode-locked optical klystron (MLOK) configuration is modelled using start-to-end simulations that simulate realistic electron beam acceleration and transport before input into a full three-dimensional FEL simulation code. These simulations demonstrate that the MLOK scheme is compatible with the present generation of radiofrequency accelerator designs. A train of few-optical cycle pulses is predicted with peak powers similar to those of the equivalent conventional FEL amplifier. The role of electron beam energy modulation in these results is explained and the limitations of some simulation codes discussed. It is shown how seeding the FEL interaction using a High Harmonic seed laser can improve the coherence properties of the output.",
keywords = "free electron laser, short laser pulses, attosecond pulse, mode locking",
author = "Dunning, {D J} and McNeil, {B W J} and Thompson, {N R} and Williams, {P H}",
note = "Selected to appear in Virtual Journal of Ultrafast Science, August 2011 The Virtual Journal, which is published by the American Physical Society and the American Institute of Physics in cooperation with numerous other societies and publishers, is an edited compilation of links to articles from participating publishers, covering a focused area of frontier research.",
year = "2011",
doi = "10.1063/1.3605027",
language = "English",
volume = "18",
journal = "Physics of Plasmas",
issn = "1070-664X",
number = "7",

}

Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier. / Dunning, D J; McNeil, B W J; Thompson, N R; Williams, P H.

In: Physics of Plasmas, Vol. 18, No. 7, 073104, 2011.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier

AU - Dunning, D J

AU - McNeil, B W J

AU - Thompson, N R

AU - Williams, P H

N1 - Selected to appear in Virtual Journal of Ultrafast Science, August 2011 The Virtual Journal, which is published by the American Physical Society and the American Institute of Physics in cooperation with numerous other societies and publishers, is an edited compilation of links to articles from participating publishers, covering a focused area of frontier research.

PY - 2011

Y1 - 2011

N2 - A free electron laser (FEL) in a mode-locked optical klystron (MLOK) configuration is modelled using start-to-end simulations that simulate realistic electron beam acceleration and transport before input into a full three-dimensional FEL simulation code. These simulations demonstrate that the MLOK scheme is compatible with the present generation of radiofrequency accelerator designs. A train of few-optical cycle pulses is predicted with peak powers similar to those of the equivalent conventional FEL amplifier. The role of electron beam energy modulation in these results is explained and the limitations of some simulation codes discussed. It is shown how seeding the FEL interaction using a High Harmonic seed laser can improve the coherence properties of the output.

AB - A free electron laser (FEL) in a mode-locked optical klystron (MLOK) configuration is modelled using start-to-end simulations that simulate realistic electron beam acceleration and transport before input into a full three-dimensional FEL simulation code. These simulations demonstrate that the MLOK scheme is compatible with the present generation of radiofrequency accelerator designs. A train of few-optical cycle pulses is predicted with peak powers similar to those of the equivalent conventional FEL amplifier. The role of electron beam energy modulation in these results is explained and the limitations of some simulation codes discussed. It is shown how seeding the FEL interaction using a High Harmonic seed laser can improve the coherence properties of the output.

KW - free electron laser

KW - short laser pulses

KW - attosecond pulse

KW - mode locking

UR - http://www.scopus.com/inward/record.url?scp=79961148294&partnerID=8YFLogxK

U2 - 10.1063/1.3605027

DO - 10.1063/1.3605027

M3 - Article

VL - 18

JO - Physics of Plasmas

T2 - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 7

M1 - 073104

ER -