报告题目：Visualized Low-Energy Interference Structure with Attosecond Temporal Resolution

报告人：杨玮枫 教授

汕头大学

时间：2016年5月27日（星期五） 下午4:00

地点：理论物理所报告厅

Abstract: We develop a generalized quantum-trajectory Monte Carlo method which could apply to arbitrary values of the Keldysh parameter. Our simulations agree well with both the experimental and TDSE results. It provides an efficient way to probe the low-energy interference structures and the underlying electronic dynamics in photoelectron momentum distribution.

(i) we report both experimentally and theoretically the observation of a novel but universal interference structure that related to Coulomb-field-driven transverse backward-scattering.

(ii) we clarify that the low-energy interference structure is a ultrafast dynamic imaging on interference of electron wave packets launched within a 1/20 laser-cycle atomic time scale, enabling photoelectron spectroscopy with a time resolution of 10-as in our experiments.