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/Advisor
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
Recommended Citation
Ghomashi, Bejan M., "Resonant Anisotropic Emission in RABBITT Spectroscopy" (2018). Honors Undergraduate Theses. 451.
https://stars.library.ucf.edu/honorstheses/451