Proton acceleration to 40 MeV using a high intensity, high contrast optical parametric chirped-pulse amplification/Ti:sapphire hybrid laser system

Koichi Ogura; Mamiko Nishiuchi; Alexander S Pirozhkov; Tsuyoshi Tanimoto; Akito Sagisaka; Timur Zh Esirkepov; Masaki Kando; Toshiyuki Shizuma; Takehito Hayakawa; Hiromitsu Kiriyama; Takuya Shimomura; Shyuji Kondo; Shuhei Kanazawa; Yoshiki Nakai; Hajime Sasao; Fumitaka Sasao; Yuji Fukuda; Hironao Sakaki; Masato Kanasaki; Akifumi Yogo; Sergei V Bulanov; Paul R Bolton; Kiminori Kondo

doi:10.1364/OL.37.002868

Proton acceleration to 40 MeV using a high intensity, high contrast optical parametric chirped-pulse amplification/Ti:sapphire hybrid laser system

Opt Lett. 2012 Jul 15;37(14):2868-70. doi: 10.1364/OL.37.002868.

Affiliation

¹ Japan Atomic Energy Agency, Kansai Photon Science Institute, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan. ogura.koichi@jaea.go.jp

PMID: 22825161
DOI: 10.1364/OL.37.002868

Abstract

Using a high-contrast (10(10):1) and high-intensity (10(21) W/cm(2)) laser pulse with the duration of 40 fs from an optical parametric chirped-pulse amplification/Ti:sapphire laser, a 40 MeV proton bunch is obtained, which is a record for laser pulse with energy less than 10 J. The efficiency for generation of protons with kinetic energy above 15 MeV is 0.1%.