Subradiant spontaneous undulator emission through collective suppression of shot noise

The phenomenon of Dicke’s subradiance, in which the collective properties of a system suppress radiation, has received broad interest in atomic physics. Recent theoretical papers in the field of relativistic electron beams have proposed schemes to achieve subradiance through suppression of shot nois...

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Main Authors: D. Ratner, E. Hemsing, A. Gover, A. Marinelli, A. Nause
Format: Article
Language:English
Published: American Physical Society 2015-05-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.18.050703
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author D. Ratner
E. Hemsing
A. Gover
A. Marinelli
A. Nause
author_facet D. Ratner
E. Hemsing
A. Gover
A. Marinelli
A. Nause
author_sort D. Ratner
collection DOAJ
description The phenomenon of Dicke’s subradiance, in which the collective properties of a system suppress radiation, has received broad interest in atomic physics. Recent theoretical papers in the field of relativistic electron beams have proposed schemes to achieve subradiance through suppression of shot noise current fluctuations. The resulting “quiet” beam generates less spontaneous radiation than emitted even by a shot noise beam when oscillating in an undulator. Quiet beams could have diverse accelerator applications, including lowering power requirements for seeded free-electron lasers and improving efficiency of hadron cooling. In this paper we present experimental observation of a strong reduction in undulator radiation, demonstrating the feasibility of noise suppression as a practical tool in accelerator physics.
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spelling doaj.art-a973c254fb4a489eb15b003ea24dec7b2022-12-22T02:20:45ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022015-05-0118505070310.1103/PhysRevSTAB.18.050703Subradiant spontaneous undulator emission through collective suppression of shot noiseD. RatnerE. HemsingA. GoverA. MarinelliA. NauseThe phenomenon of Dicke’s subradiance, in which the collective properties of a system suppress radiation, has received broad interest in atomic physics. Recent theoretical papers in the field of relativistic electron beams have proposed schemes to achieve subradiance through suppression of shot noise current fluctuations. The resulting “quiet” beam generates less spontaneous radiation than emitted even by a shot noise beam when oscillating in an undulator. Quiet beams could have diverse accelerator applications, including lowering power requirements for seeded free-electron lasers and improving efficiency of hadron cooling. In this paper we present experimental observation of a strong reduction in undulator radiation, demonstrating the feasibility of noise suppression as a practical tool in accelerator physics.http://doi.org/10.1103/PhysRevSTAB.18.050703
spellingShingle D. Ratner
E. Hemsing
A. Gover
A. Marinelli
A. Nause
Subradiant spontaneous undulator emission through collective suppression of shot noise
Physical Review Special Topics. Accelerators and Beams
title Subradiant spontaneous undulator emission through collective suppression of shot noise
title_full Subradiant spontaneous undulator emission through collective suppression of shot noise
title_fullStr Subradiant spontaneous undulator emission through collective suppression of shot noise
title_full_unstemmed Subradiant spontaneous undulator emission through collective suppression of shot noise
title_short Subradiant spontaneous undulator emission through collective suppression of shot noise
title_sort subradiant spontaneous undulator emission through collective suppression of shot noise
url http://doi.org/10.1103/PhysRevSTAB.18.050703
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AT amarinelli subradiantspontaneousundulatoremissionthroughcollectivesuppressionofshotnoise
AT anause subradiantspontaneousundulatoremissionthroughcollectivesuppressionofshotnoise