Year: 2014
Type: article
Abstract: We experimentally investigate above-threshold ionization of xenon subject to chirped intense laser pulses. While for few-cycle laser pulses free of chirp, the Freeman resonance narrow peaks in the photoelectron spectra become strongly suppressed, they will re-emerge for laser pulses with a certain chirp. Moreover, the position of the resonant peaks exhibits a strong dependence on the direction of the chirp. The experimental features can be understood by a two-step ionization process; that is, a multi-photon excitation plus subsequent ionization process.
Source: Chinese Physics Letters
Authors: Chuan-Liang Wang, Ren-Ping Sun, Yong-Ju Chen, Cheng Gong, Xuan-Yang Lai, Hui-Peng Kang, Wei Quan, Xiao-Jun Liu
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2261849129