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Jennifer Choy

IQUIST Seminar: "Tackling interface challenges for near-surface quantum emitters in diamond," Jennifer Choy, University for Wisconsin - Madison

Event Type
Seminar/Symposium
Sponsor
IQUIST
Location
190 Engineering Sciences Building, 1101 W Springfield Ave, Urbana, IL 61801
Date
Sep 10, 2024   11:00 - 11:50 am  
Speaker
Jennifer Choy, Dugald C. Jackson Assistant Professor, Department of Electrical and Computer Engineering, University of Wisconsin - Madison
Contact
Stephanie Gilmore
E-Mail
stephg1@illinois.edu
Phone
217-244-9570
Views
53
Originating Calendar
IQUIST Seminar Series

Tackling interface challenges for near-surface quantum emitters in diamond

Abstract: Spin defects in wide-bandgap semiconductors, such as color centers in diamond, can be highly sensitive to local (nanoscale) changes in magnetic field, temperature, and strain. These solid-state quantum sensors have certain advantages over their atomic counterparts owing to their room-temperature operation without the need for vacuum components and the relative ease of photonic- and RF-component integration. However, near-surface quantum defects exhibit spin decoherence and most of the light emitted is trapped within the bulk crystal due total internal reflection at the interface. I will summarize our recent work towards better understanding and addressing these interface challenges, including the modeling and experimental characterization of radiative emission of near-surface emitters, implementation of nanophotonic components to improve light extraction, and surface analysis and chemical termination techniques aimed at improving spin coherence of emitters.

Bio: Jennifer Choy is a Dugald C. Jackson Assistant Professor at the Department of Electrical and Computer Engineering at UW–Madison, where she focuses on quantum magnetometry and inertial sensing using neutral atoms and color centers in diamond. She was previously a Principal Member of Technical Staff at Draper Laboratory. She received S.B. degrees in Physics and Nuclear Engineering from the Massachusetts Institute of Technology, and a Ph.D. in Applied Physics from Harvard University.

To watch online go to the IQUIST youtube channel:   https://www.youtube.com/channel/UCCzAySwQXF8J4kRolUzg2ww

For Zoom link you may check the IQUIST calendar weekly email or contact Stephanie Gilmore (stephg1@illinois.edu). To subscribe to our weekly email for event announcements, please go to https://lists.illinois.edu/lists/subscribe/iquist-announcements.

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