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:
-
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), 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. https://doi.org/10.3389/fphy.2019.00035
Hemsing, Erik. Fri .
"Minimum Spectral Bandwidth in Echo Seeded Free Electron Lasers". United States. https://doi.org/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 = {Fri Mar 22 00:00:00 EDT 2019},
month = {Fri Mar 22 00:00:00 EDT 2019}
}
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Works referenced in this record:
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journal, May 2018
- Hemsing, E.
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journal, March 2017
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journal, June 2017
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Works referencing / citing this record:
Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II
journal, November 2019
- Hemsing, E.; Marcus, G.; Fawley, W. M.
- Physical Review Accelerators and Beams, Vol. 22, Issue 11
Spectrotemporal control of soft x-ray laser pulses
journal, June 2020
- Mirian, Najmeh S.; Allaria, Enrico; Bruchon, Niky
- Physical Review Accelerators and Beams, Vol. 23, Issue 6