报告题目

Time-dependency in Photoelectron Circular Dichroism: from femtosecond scale to attosecond

报 告 人

Valérie Blanchet， Université de Bordeaux-CNRS-CEA, France

报告地点

物理中楼211会议室

报告时间

2019年12月20日 (星期五) 10:00-11:30

联 系 人

吴成印 (Tel: 62754986)

报告摘要

报告摘要: Life is a chiral puzzle based on the stereochemistry of chiral molecules and chiral receptors. Tackling this chiral recognition at the atomic scale by taking into account the electronic cloud is one of the Grails of chemical physics. PhotoElectron Circular Dichroism (PECD) is an important method for chiral recognition. In this talk, time-resolved PECD [J. Phys. Chem. Lett., 7, 4514 (2016)] will be presented to answer the question that is there a temporal correspondence between the interference nature of PECD and the photoemission times of these electrons by using two different experimental setups : a RABBIT (Reconstruction of Attosecond Beatings By Interference of Two-photon transitions) ionization technique with chiral light (circularly polarized) to which we refer to as CHABBIT [Science, 358, 1288 (2017)] and a two-color ionization scheme leading to an Enantiosensitive Sub-Cycle Antisymmetric Response Gated by electric-field rOTation (ESCARGOT) [Phys. Rev. X, 9, 031004 (2019].

报告人简介：Prof.Valérie Blanchet is a research director in the Centre d'études des laser intenses et applications in the group Harmonique (Bordeaux). She obtained her PhD from Université de Toulouse. Her present research interest lies in Ultrafast phenomena in molecules and solids.