Coherent Terahertz synchrotron radiation ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Coherent Terahertz synchrotron radiation mastered by controlling the irregular dynamics of relativistic electron bunches
Author(s) :
Evain, C. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Szwaj, C. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Roussel, E. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Rodriguez, J. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Le Parquier, M. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Tordeux, M.A. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Ribeiro, F. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Labat, M. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Hubert, N. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Brubach, J.B. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Roy, P. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Bielawski, S. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Szwaj, C. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Roussel, E. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Rodriguez, J. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Le Parquier, M. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Tordeux, M.A. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Ribeiro, F. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Labat, M. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Hubert, N. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Brubach, J.B. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Roy, P. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Bielawski, S. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Journal title :
Nature Phys.
Pages :
635-639
Publication date :
2019
HAL domain(s) :
Physique [physics]/Physique [physics]/Physique des accélérateurs [physics.acc-ph]
English abstract : [en]
Relativistic electron bunches used in synchrotron light sources are complex media, in which patterns might form spontaneously. These spatial structures were studied over the past decades for very practical reasons. The ...
Show more >Relativistic electron bunches used in synchrotron light sources are complex media, in which patterns might form spontaneously. These spatial structures were studied over the past decades for very practical reasons. The patterns, which spontaneously appear during an instability, increase the terahertz radiation power by factors exceeding 10,000 1$^{,}$2 . However, their irregularity 1$^{–}$7 largely prevented applications of this powerful source. Here we show that principles from chaos control theory 8$^{–}$10 allow us to generate regular spatio-temporal patterns, stabilizing the emitted terahertz power. Regular unstable solutions are expected to coexist with the undesired irregular solutions, and may thus be controllable using feedback control. We demonstrate the stabilization of such regular solutions in the Synchrotron SOLEIL storage ring. Operation of these controlled unstable solutions enables new designs of high-charge and stable synchrotron radiation sources.Show less >
Show more >Relativistic electron bunches used in synchrotron light sources are complex media, in which patterns might form spontaneously. These spatial structures were studied over the past decades for very practical reasons. The patterns, which spontaneously appear during an instability, increase the terahertz radiation power by factors exceeding 10,000 1$^{,}$2 . However, their irregularity 1$^{–}$7 largely prevented applications of this powerful source. Here we show that principles from chaos control theory 8$^{–}$10 allow us to generate regular spatio-temporal patterns, stabilizing the emitted terahertz power. Regular unstable solutions are expected to coexist with the undesired irregular solutions, and may thus be controllable using feedback control. We demonstrate the stabilization of such regular solutions in the Synchrotron SOLEIL storage ring. Operation of these controlled unstable solutions enables new designs of high-charge and stable synchrotron radiation sources.Show less >
Language :
Anglais
Popular science :
Non
ANR Project :
Source :
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- http://arxiv.org/pdf/1810.11805
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- 1810.11805
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