Interference between coherences established among the 5D5/2-5P3/2 and 5P3/2-5S1/2 energy levels within atomic rubidium

Coupling was observed between atomic coherences formed at 386.2 THz and 384.1 THz, corresponding respectively to the 5D_5/2-5P_3/2 and 5P_3/2-5S_1/2 energy differences in atomic Rb. These coherences were excited using ultrafast laser pulses, and their temporal dynamics observed through quantum beat spectroscopy. The coupling of these oscillators was observed as an interference window occurring in the spectral response of the pair's beat frequency. The spectral profile of these pairs was also observed to change with varying phase matching conditions. The profile was fit to a generalized Fano resonance to recover phase, which corresponds to degree of coupling between the states. The profile was also found to change with experimental parameters, giving control over the coupling parameters.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2022

Author dc:creator

• Reboli, Thomas

Contributors dc:contributor

• Eden, James G

• Quantum beat spectroscopy
• Terahertz quantum beats
• Ultrafast spectroscopy
• Alkali
• Vapor
• Rubidium
• Pump-probe
• Time-frequency resolved
• Wave packet
• Interference
• Coherent
• Superposition
• Controllability
• Oscillators

Statement dc:rights

• Copyright 2022 Thomas Reboli

Language dc:language

en, eng

Handle dc:identifier

https://hdl.handle.net/2142/115795

OAI record oai:identifier

https://www.ideals.illinois.edu/oai-pmh?verb=GetRecord&metadataPrefix=etdms&identifier=oai%3Awww.ideals.illinois.edu%3A2142%2F115795