Keywords
RABBITT, Attosecond Physics, Time Delays, Interferometric techniques
Abstract
In this thesis we propose an interferometric scheme to retrieve the dynamics of an electron wave packet emitted from two distinct residual photo-ion channels in the ionization of an atom by an ultra-short UV pulse. EPAS (Entangled-Photoelectron Attosecond Spectroscopy) works by having a non-overlapping UV and few-cycle IR pulse, where the IR is tuned near the transition frequency between two electronic bound states of the photo-ion. Using a time-dependent simulation based on a two-channel atomic model, supported by a perturbative approach, we were able to compute the resulting interference in the angular distribution of the photoelectron and retrieve the energy-dependent scattering phase between the two channels. This technique enables the determination of the difference in scattering phases between two channels without measurement induced effects, allowing us to gather information on a broad electron energy range, including the low-electron energy dynamics.
Thesis Completion Year
2025
Thesis Completion Semester
Fall
Thesis Chair
Douguet, Nicolas
College
College of Sciences
Department
Physics
Thesis Discipline
Physics
Language
English
Access Status
Open Access
Length of Campus Access
None
Campus Location
Orlando (Main) Campus
Subjects
Photoelectron spectroscopy; Time-resolved spectroscopy; Electron spectroscopy; Quantum optics--Technique; Multiphoton ionization
STARS Citation
Sar-Shalom, Jonathan, "Entangled Photoelectron Attosecond Spectroscopy" (2025). Honors Undergraduate Theses. 456.
https://stars.library.ucf.edu/hut2024/456
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