Speaker
Josh Stackhouse
(Lawrence Berkeley National Laboratory)
Description
A pre-formed plasma channel can be used to maintain laser pulse intensity over the full dephasing/pump depletion length of a laser plasma accelerator and maximize electron beam energy for a given drive laser. In this talk we present recent results[1] that show high quality guiding of ~0.5PW (20J) laser pulses in a 30cm-long, hydrodynamic optical-field-ionized (HOFI) plasma channel. By varying the length of the plasma channel, we observed the transport of higher-order modes, quasimatched propagation, and the dark-current-free transfer of laser energy to the wake. By introducing a localized region of nitrogen dopant, electron beams were generated with energy up to ~10GeV.
[1] Picksley et al., Phys. Rev. Lett., 133, 255001 (2024).
Primary author
Josh Stackhouse
(Lawrence Berkeley National Laboratory)
Co-authors
Alex Picksley
(Lawrence Berkeley National Lab)
Anthony Gonsalves
(LBNL)
Bo Miao
(University of Maryland)
Cameron Geddes
(Lawrence Berkeley National Laboratory)
Carl Schroeder
(Lawrence Berkeley National Laboratory)
Carlo Benedetti
(LBNL)
Ela Rockafellow
(University of Maryland)
Eric Esarey
(Lawrence Berkeley National Laboratory)
Hai-En Tsai
(Lawrence Berkeley National Laboratory)
Howard Milchberg
(University of Maryland)
Jaron Schrock
(University of Maryland)
Jeroen van Tilborg
(LBNL)
Kei Nakamura
(Lawrence Berkeley National Laboratory)
Raymond Li
(Lawrence Berkeley National Laboratory)
