Accepted author manuscript, 4.57 MB, PDF document
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Acceleration of relativistic beams using laser-generated terahertz pulses
AU - Hibberd, Morgan T
AU - Healy, Alisa L
AU - Lake, Daniel S
AU - Georgiadis, Vasileios
AU - Smith, Elliott JH
AU - Finlay, Oliver J
AU - Pacey, Thomas H
AU - Jones, James K
AU - Saveliev, Yuri
AU - Walsh, David A
AU - Sneddon, Edward W.
AU - Appleby, Robert B.
AU - Burt, Graeme
AU - Graham, Darren M.
AU - Jamison, Steven
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Particle accelerators driven by laser-generated terahertz (THz) pulses promise unprecedented control over the energy–time phase space of particle bunches compared with conventional radiofrequency technology. Here we demonstrate acceleration of a relativistic electron beam in a THz-driven linear accelerator. Narrowband THz pulses were tuned to the phase-velocity-matched operating frequency of a rectangular dielectric-lined waveguide for extended collinear interaction with 35 MeV, 60 pC electron bunches, imparting multicycle energy modulation to chirped (6 ps) bunches and injection phase-dependent energy gain (up to 10 keV) to subcycle (2 ps) bunches. These proof-of-principle results establish a route to whole-bunch linear acceleration of subpicosecond particle beams, directly applicable to scaled-up and multistaged concepts capable of preserving beam quality, thus marking a key milestone for future THz-driven acceleration of relativistic beams
AB - Particle accelerators driven by laser-generated terahertz (THz) pulses promise unprecedented control over the energy–time phase space of particle bunches compared with conventional radiofrequency technology. Here we demonstrate acceleration of a relativistic electron beam in a THz-driven linear accelerator. Narrowband THz pulses were tuned to the phase-velocity-matched operating frequency of a rectangular dielectric-lined waveguide for extended collinear interaction with 35 MeV, 60 pC electron bunches, imparting multicycle energy modulation to chirped (6 ps) bunches and injection phase-dependent energy gain (up to 10 keV) to subcycle (2 ps) bunches. These proof-of-principle results establish a route to whole-bunch linear acceleration of subpicosecond particle beams, directly applicable to scaled-up and multistaged concepts capable of preserving beam quality, thus marking a key milestone for future THz-driven acceleration of relativistic beams
U2 - 10.1038/s41566-020-0674-1
DO - 10.1038/s41566-020-0674-1
M3 - Journal article
VL - 14
SP - 755
EP - 759
JO - Nature Photonics
JF - Nature Photonics
SN - 1749-4885
ER -