title: High-contrast 1.16 PW Ti:sapphire laser system combined with a doubled chirped-pulse amplification scheme and a femtosecond optical-parametric amplifier.
abstract: Based on a combined scheme of doubled chirped-pulse amplification and a femtosecond noncollinear optical-parametric amplifier, a high-contrast femtosecond laser pulse with energy of up to 32.3 J has been generated by improving the gain efficiency and boosting the pump energy to 120 J in the final amplifier. Our measurements show that the contrast ratio of the main laser pulse is around 10(10) within the time scale of -400 ps and the duration of compressed pulse is 27.9 fs, corresponding to a peak power of 1.16 PW.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Zhaohua
authors.initials: Z
authors.lastname: Wang
authors.forename: Cheng
authors.initials: C
authors.lastname: Liu
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Shen
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhang
authors.forename: Hao
authors.initials: H
authors.lastname: Teng
authors.forename: Zhiyi
authors.initials: Z
authors.lastname: Wei