Quantum Optics and Francium Spectroscopy

Joint Quantum Institute , Department of Physics , University of Maryland

Luis A. Orozco, lorozco@umd.edu Dept. Physics, Joint Quantum Institute (JQI), The Atlantic 2201, University of Maryland, College Park, MD 20742-4111 USA
office phone: +1 (301) 405 9740; laboratory located at TRIUMF Fr trapping facility at ISAC 1 Hall (+1 604 222-1047) X 6774.

Welcome to the Atomic Molecular and Optical Physics pages of Prof. Emeritus Luis A. Orozco from the Joint Quantum Institute at the Department of Physics of UMD.

• Quantum Optics studies the coherence and statistical properties of light and how they change as it interacts with atoms. The experimental work has used two platforms: Cavity Quantum Electrodynamics (QED) and Optical Nanofibers. The work explores Quantum Feedback, Quantum Information, Quantum Optics, and Quantum Thermodynamics.
• Francium Spectroscopy probes the structure of the heaviest alkali metal atom using laser light and aims to understand better the weak interaction. We are members of the FrPNC collaboration (Prof. Gerald Gwinner, U. Manitoba, Spokesperson), the experiments are carried at the Fr trapping facility at TRIUMF in Vancouver, Canada.

The National Science Foundation, the Department of Energy, the National Institute of Standards and Technology, the JQI, and the Department of Physics at UMD have supported the work.

News from 2022 to 2025:

• Jeffrey Wack wins an NSF graduate fellowship Alumni Honored with NSF Fellowships.
• Dong Sheng and his group at USTC in Hefei China just published a paper highlighted with a viewpoint in Physics on Search for Spin-Dependent Gravitational Interactions at Earth Range .
• Deven Bowman, Physics in Florence alumni 2022 wins Goldwater Scholarship. JQI News .
• Jonathan Hoffman Heads Toward New Horizon in Navigation Science. JQI News .
• Jeffrey Wack, Recent Physics Graduate, Sees Many Roads Ahead. JQI News .
• Pablo Solano receives International Early-Carrer Award by the Canadian Institute for Advance Research (CIFAR). JQI News .
• See APS News January 2022 (Volume 31, Number 1) This Month in Physics History by Sophia Chen: January 7, 1939: The 83rd Anniversary of the Discovery of Francium .

Other news and video presentations:

• See the news about at the Department of Physics website: Physics in Florence Fall 2019 .
• Talk and dialogue with Mexican writer Juan Villoro (in Spanish) "De los experimentos imaginarios a la información cuántica ", El Colegio Nacional, México, June 2019.Video available at the YouTube Channel of El Colegio Nacional

Group Members. Includes CVs, collaborators, and past members with links to the dissertations of the former PhD students of the group.

Presentations and Courses from previous and current year: Includes talks, public lectures, and lectures.

Publications including the latest publications

The opinions and information in this Web Page are not those of UMD, TRIUMF, The University of Manitoba, the National Science Foundation, NIST, or any of the other funding agencies that support our work.

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Last modified July 21, 2025