Abstract

A variant of RABBITT pump-probe spectroscopy in which the attosecond pulse train comprises both even and odd harmonics of the fundamental IR probe frequency is explored to measure time-resolved photoelectron emission in systems that exhibit autoionizing states. It is shown that the group delay of both one-photon and two-photon resonant transitions is directly encoded in the energy-resolved photoelectron anisotropy as a function of the pump-probe time-delay. This principle is illustrated for a 1D model with symmetric zero-range potentials that supports both bound states and shape-resonances. The model is studied using both perturbation theory and solving the time-dependent Schodinger equation on a grid. Moreover, we study the case of a realistic atomic system, helium. In both cases, we demonstrate faithful reconstruction of the phase information for resonant photoemission.

Thesis Completion

2018

Semester

Summer

Thesis Chair

Argenti, Luca

Co-Chair

Douguet, Nicolas

Degree

Bachelor of Science (B.S.)

College

College of Sciences

Department

Physics

Degree Program

Computational Physics

Location

Orlando (Main) Campus

Language

English

Access Status

Open Access

Release Date

2-1-2019

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