Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators

Peter J.M. Van Der Slot; Henry P. Freund

doi:10.3390/app11114978

Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators

Peter J.M. Van Der Slot^*, Henry P. Freund

^*Corresponding author for this work

Research output: Contribution to journal › Review article › Academic › peer-review

6 Citations (Scopus)

101 Downloads (Pure)

Abstract

Free-electron lasers (FELs) have been designed to operate over virtually the entire electromagnetic spectrum, from microwaves through to X-rays, and in a variety of configurations, including amplifiers and oscillators. Oscillators can operate in both the low and high gain regime and are typically used to improve the spatial and temporal coherence of the light generated. We will discuss various FEL oscillators, ranging from systems with high-quality resonators combined with low-gain undulators, to systems with a low-quality resonator combined with a high-gain undulator line. The FEL gain code MINERVA and wavefront propagation code OPC are used to model the FEL interaction within the undulator and the propagation in the remainder of the oscillator, respectively. We will not only include experimental data for the various systems for comparison when available, but also present, for selected cases, how the two codes can be used to study the effect of mirror aberrations and thermal mirror deformation on FEL performance.

Original language	English
Article number	4978
Journal	Applied Sciences
Volume	11
Issue number	11
DOIs	https://doi.org/10.3390/app11114978
Publication status	Published - 1 Jun 2021

Keywords

Free-electron laser
Oscillator
Regenerative amplifier
UT-Gold-D

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10.3390/app11114978Licence: CC BY

Van-der-slot-2021-Three-dimensional-time-dependent-anFinal published version, 1.5 MBLicence: CC BY

Cite this

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title = "Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators",

abstract = "Free-electron lasers (FELs) have been designed to operate over virtually the entire electromagnetic spectrum, from microwaves through to X-rays, and in a variety of configurations, including amplifiers and oscillators. Oscillators can operate in both the low and high gain regime and are typically used to improve the spatial and temporal coherence of the light generated. We will discuss various FEL oscillators, ranging from systems with high-quality resonators combined with low-gain undulators, to systems with a low-quality resonator combined with a high-gain undulator line. The FEL gain code MINERVA and wavefront propagation code OPC are used to model the FEL interaction within the undulator and the propagation in the remainder of the oscillator, respectively. We will not only include experimental data for the various systems for comparison when available, but also present, for selected cases, how the two codes can be used to study the effect of mirror aberrations and thermal mirror deformation on FEL performance.",

keywords = "Free-electron laser, Oscillator, Regenerative amplifier, UT-Gold-D",

author = "{Van Der Slot}, {Peter J.M.} and Freund, {Henry P.}",

note = "Funding Information: Funding: The work described was supported over the course of time by multiple contracts with the U.S. Office of Naval Research, the Department of Defense Joint Technology Office, and the Department of Energy. Funding Information: Acknowledgments: The authors would like to thank numerous staff members at JLab for many helpful discussions about the IR Demo and 10-kW Upgrade experiments. We would also like to thank Heinz-Dieter Nuhn and Paul Emma for providing assistance with understanding the data from the LCLS and thank Luca Giannessi for assistance concerning the SPARC data. The work described was supported over the course of time by multiple contracts with the U.S. Office of Naval Research, the Department of Defense High Energy Laser Joint Technology Office, and the Department of Energy. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

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AU - Van Der Slot, Peter J.M.

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N1 - Funding Information: Funding: The work described was supported over the course of time by multiple contracts with the U.S. Office of Naval Research, the Department of Defense Joint Technology Office, and the Department of Energy. Funding Information: Acknowledgments: The authors would like to thank numerous staff members at JLab for many helpful discussions about the IR Demo and 10-kW Upgrade experiments. We would also like to thank Heinz-Dieter Nuhn and Paul Emma for providing assistance with understanding the data from the LCLS and thank Luca Giannessi for assistance concerning the SPARC data. The work described was supported over the course of time by multiple contracts with the U.S. Office of Naval Research, the Department of Defense High Energy Laser Joint Technology Office, and the Department of Energy. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/6/1

Y1 - 2021/6/1

N2 - Free-electron lasers (FELs) have been designed to operate over virtually the entire electromagnetic spectrum, from microwaves through to X-rays, and in a variety of configurations, including amplifiers and oscillators. Oscillators can operate in both the low and high gain regime and are typically used to improve the spatial and temporal coherence of the light generated. We will discuss various FEL oscillators, ranging from systems with high-quality resonators combined with low-gain undulators, to systems with a low-quality resonator combined with a high-gain undulator line. The FEL gain code MINERVA and wavefront propagation code OPC are used to model the FEL interaction within the undulator and the propagation in the remainder of the oscillator, respectively. We will not only include experimental data for the various systems for comparison when available, but also present, for selected cases, how the two codes can be used to study the effect of mirror aberrations and thermal mirror deformation on FEL performance.

AB - Free-electron lasers (FELs) have been designed to operate over virtually the entire electromagnetic spectrum, from microwaves through to X-rays, and in a variety of configurations, including amplifiers and oscillators. Oscillators can operate in both the low and high gain regime and are typically used to improve the spatial and temporal coherence of the light generated. We will discuss various FEL oscillators, ranging from systems with high-quality resonators combined with low-gain undulators, to systems with a low-quality resonator combined with a high-gain undulator line. The FEL gain code MINERVA and wavefront propagation code OPC are used to model the FEL interaction within the undulator and the propagation in the remainder of the oscillator, respectively. We will not only include experimental data for the various systems for comparison when available, but also present, for selected cases, how the two codes can be used to study the effect of mirror aberrations and thermal mirror deformation on FEL performance.

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KW - UT-Gold-D

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Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators

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Keywords

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