skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Minimum Spectral Bandwidth in Echo Seeded Free Electron Lasers

Abstract

This paper examines the impact of non-linear longitudinal phase distortions on the spectral bandwidth in echo seeded free electron lasers (FELs). It extends the existing theory developed in Hemsing for echo-enabled harmonic generation (EEHG) to include finite laser pulse durations. An analytic expression for the shape of the optimized longitudinal bunching envelope is derived, and is used to determine the laser and electron beam pulse durations that minimize the seeded bandwidth in the presence of arbitrary phase distortions. The time-bandwidth product (TBP) is also derived, and is shown that the TBP and the bandwidth increase by no more than 2–√ from their transform-limited values when the bandwidth is minimized.

Authors:
 [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1528827
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Frontiers in Physics
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2296-424X
Publisher:
Frontiers Research Foundation
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Hemsing, Erik. Minimum Spectral Bandwidth in Echo Seeded Free Electron Lasers. United States: N. p., 2019. Web. doi:10.3389/fphy.2019.00035.
Hemsing, Erik. Minimum Spectral Bandwidth in Echo Seeded Free Electron Lasers. United States. doi:10.3389/fphy.2019.00035.
Hemsing, Erik. Fri . "Minimum Spectral Bandwidth in Echo Seeded Free Electron Lasers". United States. doi:10.3389/fphy.2019.00035. https://www.osti.gov/servlets/purl/1528827.
@article{osti_1528827,
title = {Minimum Spectral Bandwidth in Echo Seeded Free Electron Lasers},
author = {Hemsing, Erik},
abstractNote = {This paper examines the impact of non-linear longitudinal phase distortions on the spectral bandwidth in echo seeded free electron lasers (FELs). It extends the existing theory developed in Hemsing for echo-enabled harmonic generation (EEHG) to include finite laser pulse durations. An analytic expression for the shape of the optimized longitudinal bunching envelope is derived, and is used to determine the laser and electron beam pulse durations that minimize the seeded bandwidth in the presence of arbitrary phase distortions. The time-bandwidth product (TBP) is also derived, and is shown that the TBP and the bandwidth increase by no more than 2–√ from their transform-limited values when the bandwidth is minimized.},
doi = {10.3389/fphy.2019.00035},
journal = {Frontiers in Physics},
number = ,
volume = 7,
place = {United States},
year = {2019},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Bunching phase and constraints on echo enabled harmonic generation
journal, May 2018


Highly coherent and stable pulses from the FERMI seeded free-electron laser in the extreme ultraviolet
journal, September 2012


Two-stage seeded soft-X-ray free-electron laser
journal, October 2013


Spectrotemporal Shaping of Seeded Free-Electron Laser Pulses
journal, September 2015


Pulse Splitting in Short Wavelength Seeded Free Electron Lasers
journal, December 2009


Generation of Phase-Locked Pulses from a Seeded Free-Electron Laser
journal, January 2016


Two-Color Radiation Generated in a Seeded Free-Electron Laser with Two Electron Beams
journal, June 2015


Multicolor High-Gain Free-Electron Laser Driven by Seeded Microbunching Instability
journal, November 2015


Beam by design: Laser manipulation of electrons in modern accelerators
journal, July 2014


Using the Beam-Echo Effect for Generation of Short-Wavelength Radiation
journal, February 2009


Echo-enabled harmonic generation free electron laser
journal, March 2009


Laser phase errors in seeded free electron lasers
journal, March 2012


First lasing of an echo-enabled harmonic generation free-electron laser
journal, May 2012


Stable, coherent free-electron laser pulses using echo-enabled harmonic generation
journal, November 2014


Echo-Enabled Harmonic Generation Studies for the FERMI Free-Electron Laser
journal, March 2017


Sensitivity of echo enabled harmonic generation to sinusoidal electron beam energy structure
journal, June 2017


Bivariate Instantaneous Frequency and Bandwidth
journal, February 2010


FERMI: Present and Future Challenges
journal, June 2017

  • Giannessi, Luca; Masciovecchio, Claudio
  • Applied Sciences, Vol. 7, Issue 6
  • DOI: 10.3390/app7060640

Generating Single-Spike Hard X-Ray Pulses with Nonlinear Bunch Compression in Free-Electron Lasers
journal, October 2017