Single-Shot Electro-Optic Sampling on the Temporal Structure of Laser Wakefield Accelerated Electrons
Kai Huang,
Hideyuki Kotaki,
Michiaki Mori,
Yukio Hayashi,
Nobuhiko Nakanii,
Masaki Kando
Affiliations
Kai Huang
Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa-City, Kyoto 619-0215, Japan
Hideyuki Kotaki
Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa-City, Kyoto 619-0215, Japan
Michiaki Mori
Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa-City, Kyoto 619-0215, Japan
Yukio Hayashi
Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa-City, Kyoto 619-0215, Japan
Nobuhiko Nakanii
Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa-City, Kyoto 619-0215, Japan
Masaki Kando
Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa-City, Kyoto 619-0215, Japan
Particle acceleration driven by a high power Ti: sapphire laser has invoked great interest worldwide because of the ultrahigh acceleration gradient. For the aspect of electron acceleration, electron beams with energies over GeV have been generated using the laser wakefield acceleration mechanism. For the optimization of the electron generation process, real-time electron parameter monitors are necessary. One of the key parameters of a high energy particle beam is the temporal distribution, which is closely related with the timing resolution in a pump-probe application. Here, we introduced the electro-optic sampling method to laser wakefield acceleration. Real-time multibunch structures were observed. Careful calculations on the physical processes of signal generation in an electro-optic crystal were performed. Discussions of the methodology are elaborated in detail.
