Characterizing 86-attosecond isolated pulses based on amplitude gating of high harmonic generation [Invited]
Shiyang Zhong, Hao Teng, Xiaoxian Zhu, Yitan Gao, Kejian Wang, Xianzhi Wang, Yiming Wang, Suyu Yu, Kun Zhao, Zhiyi Wei
Abstract
Isolated attosecond pulses (IAPs) are generated via applying amplitude gating on high-order harmonic generation driven by carrier-envelope phase stabilized 5.2 fs pulses with 0.5 mJ pulse energy at 770 nm central wavelength at the Synergetic Extreme Condition User Facility. A continuum ranging from 70 to 100 eV that supports sub-100-attosecond pulse is extracted by Zr foil and Mo/Si multilayer mirror. We demonstrate the characterization of the IAP. The retrieved pulse duration is 86 attoseconds. The developed attosecond laser beamline with repetition rate up to 10 kHz is available for users to conduct attosecond photoelectron spectroscopy researches with a capability of coincidence measurement.