Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz

We demonstrate laser wakefield acceleration of quasimonoenergetic electron bunches up to 15 MeV at 1-kHz repetition rate with 2.5-pC charge per bunch and a core with <7-mrad beam divergence. Acceleration is driven by 5-fs, <2.7-mJ laser incident on a thin, near-critical-density hydrogen gas je...

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Autores principales:	F. Salehi, M. Le, L. Railing, M. Kolesik, H. M. Milchberg
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/d73c1d17201c4481855ac87be46e4eb1
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spelling	oai:doaj.org-article:d73c1d17201c4481855ac87be46e4eb12021-12-02T15:49:18ZLaser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz10.1103/PhysRevX.11.0210552160-3308https://doaj.org/article/d73c1d17201c4481855ac87be46e4eb12021-06-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.021055http://doi.org/10.1103/PhysRevX.11.021055https://doaj.org/toc/2160-3308We demonstrate laser wakefield acceleration of quasimonoenergetic electron bunches up to 15 MeV at 1-kHz repetition rate with 2.5-pC charge per bunch and a core with <7-mrad beam divergence. Acceleration is driven by 5-fs, <2.7-mJ laser incident on a thin, near-critical-density hydrogen gas jet. Low beam divergence is attributed to reduced sensitivity to laser carrier-envelope phase slip, achieved in two ways using gas jet positon control and laser polarization: (i) electron injection into the wake on the gas jet’s plasma density downramp and (ii) use of circularly polarized drive pulses. These results demonstrate the generation of high-quality electron beams from a few-cycle-pulse-driven laser plasma accelerator without the need for carrier-envelope phase stabilization.F. SalehiM. LeL. RailingM. KolesikH. M. MilchbergAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 2, p 021055 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 F. Salehi M. Le L. Railing M. Kolesik H. M. Milchberg Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz
description	We demonstrate laser wakefield acceleration of quasimonoenergetic electron bunches up to 15 MeV at 1-kHz repetition rate with 2.5-pC charge per bunch and a core with <7-mrad beam divergence. Acceleration is driven by 5-fs, <2.7-mJ laser incident on a thin, near-critical-density hydrogen gas jet. Low beam divergence is attributed to reduced sensitivity to laser carrier-envelope phase slip, achieved in two ways using gas jet positon control and laser polarization: (i) electron injection into the wake on the gas jet’s plasma density downramp and (ii) use of circularly polarized drive pulses. These results demonstrate the generation of high-quality electron beams from a few-cycle-pulse-driven laser plasma accelerator without the need for carrier-envelope phase stabilization.
format	article
author	F. Salehi M. Le L. Railing M. Kolesik H. M. Milchberg
author_facet	F. Salehi M. Le L. Railing M. Kolesik H. M. Milchberg
author_sort	F. Salehi
title	Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz
title_short	Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz
title_full	Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz
title_fullStr	Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz
title_full_unstemmed	Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz
title_sort	laser-accelerated, low-divergence 15-mev quasimonoenergetic electron bunches at 1 khz
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/d73c1d17201c4481855ac87be46e4eb1
work_keys_str_mv	AT fsalehi laseracceleratedlowdivergence15mevquasimonoenergeticelectronbunchesat1khz AT mle laseracceleratedlowdivergence15mevquasimonoenergeticelectronbunchesat1khz AT lrailing laseracceleratedlowdivergence15mevquasimonoenergeticelectronbunchesat1khz AT mkolesik laseracceleratedlowdivergence15mevquasimonoenergeticelectronbunchesat1khz AT hmmilchberg laseracceleratedlowdivergence15mevquasimonoenergeticelectronbunchesat1khz
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Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz

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