Program

O.21 -- Oral, NCTP-42

Date: Wednesday, 2 August 2017

Time: 14h40 - 15h00

Retrieval of target structure information from laser-induced photoelectrons and high-harmonic generation by few-cycle bicircular laser field

Van-Hung Hoang (1, 2), Van-Hoang Le (1), Anh-Thu Le (2)

(1) Department of Physics, Ho Chi Minh City University of Pedagogy, 280 An Duong Vuong Street, District 5, Ho Chi Minh City, Vietnam (2) Department of Physics, Cardwell Hall, Kansas State University, Manhattan, Kansas 66506, USA

Photoelectron momentum and high-harmonic generation for atoms in few-cycle bicircular laser pulses are obtained by solving time-dependent Schrodinger equation numerically. We show that high-energy photoelectron momentum spectra can be used to extract accurate elastic scattering differential cross sections of the target ion with free electrons. We also show that high harmonic generation can be understood within the quantitative rescattering theory. Our results are in a good agreement with recent experiments from Baykusheva et al (ETH). We further show that HHG yield and phase are not sensitive with respect to macroscopic propagation condition. This offers a potentially powerful tool for more accurate HHG spectroscopy in the future.

Presenter: Hoàng Văn Hưng