Details

Autor(en) / Beteiligte

• Liu, J S
• Xia, C Q
• Wang, W T
• Lu, H Y
• Wang, Ch
• Deng, A H
• Li, W T
• Zhang, H
• Liang, X Y
• Leng, Y X
• Lu, X M
• Wang, C
• Wang, J Z
• Nakajima, K
• Li, R X
• Xu, Z Z

Titel

All-optical cascaded laser wakefield accelerator using ionization-induced injection

Ist Teil von

• Physical review letters, 2011-07, Vol.107 (3), p.035001-035001, Article 035001

Ort / Verlag

United States

Erscheinungsjahr

2011

Quelle

PROLA

Beschreibungen/Notizen

• We report on near-GeV electron beam generation from an all-optical cascaded laser wakefield accelerator (LWFA). Electron injection and acceleration are successfully separated and controlled in different LWFA stages by employing two gas cells filled with a He/O2 mixture and pure He gas, respectively. Electrons with a Maxwellian spectrum, generated from the first LWFA assisted by ionization-induced injection, were seeded into the second LWFA with a 3-mm-thick gas cell and accelerated to be a 0.8-GeV quasimonoenergetic electron beam, corresponding to an acceleration gradient of 187  GV/m. The demonstrated scheme paves the way towards the multi-GeV laser accelerators.