Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Laser seeded electron beam filamentation in high intensity laser wakefield acceleration
AU - Vargas, M.
AU - Schumaker, W.
AU - Cummings, P.
AU - Chvykov, V.
AU - Yanovsky, V.
AU - Maksimchuk, A.
AU - Krushelnick, Karl
AU - Thomas, Alexander George Roy
PY - 2012/12
Y1 - 2012/12
N2 - In previous laser wakefield acceleration experiments, electron beam filamentation was observed due to the current filamentation instability, which occurred in laser-plasma interaction lengths greater than the laser depletion length [1]. Recent experiments using the HERCULES laser, with approximately 160TW, also showed the appearance of multiple electron beams observed consistently. Due to the laser's high intensity, and astigmatism in the focusing optics, localized hot spots in the laser profile before and after focus resulted in multiple wakefield generation. Through self-focusing in the wakefields, the laser pulse broke into individual filaments, which lead to the acceleration of multiple beamlets.
AB - In previous laser wakefield acceleration experiments, electron beam filamentation was observed due to the current filamentation instability, which occurred in laser-plasma interaction lengths greater than the laser depletion length [1]. Recent experiments using the HERCULES laser, with approximately 160TW, also showed the appearance of multiple electron beams observed consistently. Due to the laser's high intensity, and astigmatism in the focusing optics, localized hot spots in the laser profile before and after focus resulted in multiple wakefield generation. Through self-focusing in the wakefields, the laser pulse broke into individual filaments, which lead to the acceleration of multiple beamlets.
U2 - 10.1063/1.4773718
DO - 10.1063/1.4773718
M3 - Journal article
VL - 1507
SP - 336
EP - 340
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
SN - 0094-243X
IS - 1
ER -