A robust plasma-based laser amplifier via stimulated Brillouin scattering
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10071/23608 |
Resumo: | Brillouin amplification in plasma is more resilient to fluctuations in the laser and plasma parameters than Raman amplification, making it an attractive alternative to Raman amplification. In this work, we focus on high plasma densities, $n_0 \gt n_{cr}/4$, where stimulated Raman scattering is not possible and laser beam filamentation is the dominant competing process. Through analytic theory and multi-dimensional particle-in-cell simulations, we identify a parameter regime for which Brillouin amplification can be efficient while maintaining filamentation of the probe at a controlled level. We demonstrate pump-to-probe compression ratios of up to 72 and peak amplified probe fluences over 1 kJ cm^{−2} with ${\simeq}50\%$ efficiency. High pulse quality is maintained through control of parasitic filamentation, enabling operation at large beam diameters. Provided the pump and probe pulse diameters can be increased to $1$ mm, our results suggest that Brillouin amplification can be used to produce sub-picosecond pulses of petawatt power. |
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A robust plasma-based laser amplifier via stimulated Brillouin scatteringBrillouin amplificationHigh energy density physicsLaser-plasma interactionsParametric instabilitiesBrillouin amplification in plasma is more resilient to fluctuations in the laser and plasma parameters than Raman amplification, making it an attractive alternative to Raman amplification. In this work, we focus on high plasma densities, $n_0 \gt n_{cr}/4$, where stimulated Raman scattering is not possible and laser beam filamentation is the dominant competing process. Through analytic theory and multi-dimensional particle-in-cell simulations, we identify a parameter regime for which Brillouin amplification can be efficient while maintaining filamentation of the probe at a controlled level. We demonstrate pump-to-probe compression ratios of up to 72 and peak amplified probe fluences over 1 kJ cm^{−2} with ${\simeq}50\%$ efficiency. High pulse quality is maintained through control of parasitic filamentation, enabling operation at large beam diameters. Provided the pump and probe pulse diameters can be increased to $1$ mm, our results suggest that Brillouin amplification can be used to produce sub-picosecond pulses of petawatt power.IOP Publishing Ltd2021-11-30T16:38:23Z2021-01-01T00:00:00Z20212021-11-30T16:37:48Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/23608eng0741-333510.1088/1361-6587/ac2613Alves, E. P.Trines, R. M. G.Humphrey K. A.Bingham, R.Cairns, R. A.Fiuza, F.Fonseca, R. A.Silva, L. O.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:57:52Zoai:repositorio.iscte-iul.pt:10071/23608Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:29:57.893684Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A robust plasma-based laser amplifier via stimulated Brillouin scattering |
title |
A robust plasma-based laser amplifier via stimulated Brillouin scattering |
spellingShingle |
A robust plasma-based laser amplifier via stimulated Brillouin scattering Alves, E. P. Brillouin amplification High energy density physics Laser-plasma interactions Parametric instabilities |
title_short |
A robust plasma-based laser amplifier via stimulated Brillouin scattering |
title_full |
A robust plasma-based laser amplifier via stimulated Brillouin scattering |
title_fullStr |
A robust plasma-based laser amplifier via stimulated Brillouin scattering |
title_full_unstemmed |
A robust plasma-based laser amplifier via stimulated Brillouin scattering |
title_sort |
A robust plasma-based laser amplifier via stimulated Brillouin scattering |
author |
Alves, E. P. |
author_facet |
Alves, E. P. Trines, R. M. G. Humphrey K. A. Bingham, R. Cairns, R. A. Fiuza, F. Fonseca, R. A. Silva, L. O. |
author_role |
author |
author2 |
Trines, R. M. G. Humphrey K. A. Bingham, R. Cairns, R. A. Fiuza, F. Fonseca, R. A. Silva, L. O. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Alves, E. P. Trines, R. M. G. Humphrey K. A. Bingham, R. Cairns, R. A. Fiuza, F. Fonseca, R. A. Silva, L. O. |
dc.subject.por.fl_str_mv |
Brillouin amplification High energy density physics Laser-plasma interactions Parametric instabilities |
topic |
Brillouin amplification High energy density physics Laser-plasma interactions Parametric instabilities |
description |
Brillouin amplification in plasma is more resilient to fluctuations in the laser and plasma parameters than Raman amplification, making it an attractive alternative to Raman amplification. In this work, we focus on high plasma densities, $n_0 \gt n_{cr}/4$, where stimulated Raman scattering is not possible and laser beam filamentation is the dominant competing process. Through analytic theory and multi-dimensional particle-in-cell simulations, we identify a parameter regime for which Brillouin amplification can be efficient while maintaining filamentation of the probe at a controlled level. We demonstrate pump-to-probe compression ratios of up to 72 and peak amplified probe fluences over 1 kJ cm^{−2} with ${\simeq}50\%$ efficiency. High pulse quality is maintained through control of parasitic filamentation, enabling operation at large beam diameters. Provided the pump and probe pulse diameters can be increased to $1$ mm, our results suggest that Brillouin amplification can be used to produce sub-picosecond pulses of petawatt power. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-30T16:38:23Z 2021-01-01T00:00:00Z 2021 2021-11-30T16:37:48Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10071/23608 |
url |
http://hdl.handle.net/10071/23608 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0741-3335 10.1088/1361-6587/ac2613 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing Ltd |
publisher.none.fl_str_mv |
IOP Publishing Ltd |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134862059241472 |