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아래 세미나는 취소 되었습니다.

[세미나: 12월 12일(목), 오전 10시 30분] Prof. Laura Kim, Electrical & Computer Engineering, University of Florida

Title

Nanophotonic Interfaces to Control Plasmons and Spins for Next-Generation Quantum Technologies

Speaker

Prof. Laura Kim, Assistant Professor, Electrical & Computer Engineering, University of Florida

Biography

Laura Kim is an assistant professor in the Electrical and Computer Engineering Department at the University of Florida (UF). Before joining UF this summer, she served as an assistant professor in the Materials Science and Engineering Department at UCLA in 22-24. Prior to her appointment, she completed her IC Postdoctoral Fellowship in the Quantum Photonics Laboratory at the Massachusetts Institute of Technology. She received her B.S. and Ph.D. degrees from the California Institute of Technology. She was named a 2020 EECS Rising Star and a recipient of the 2023 Nanophotonics Early Career Award, UCLA Faculty Career Development Award, IC Postdoctoral Fellowship, Gary Malouf Foundation Award, and National Science Foundation Graduate Research Fellowship. She serves on the Early Career Editorial Advisory Board of Applied Physics Letters. Her current research interests include extreme light-matter interactions in 2D systems and solid-state spin-qubit materials and devices for nanoscale quantum sensing technologies.

| Date | Thursday, December 12th, 2024

| Time | 10:30 ~ 12:00

| Venue | 33동 222호(동부 세미나실)

[Abstract]

Light-matter interactions mediated by photonic quasiparticles play a crucial role in unlocking 

phenomena that are not accessible with free-space photons and providing efficient interfaces for 

quantum systems. In the first part of the presentation, I will present the first experimental 

demonstration of a mid-infrared light-emitting mechanism originating from hot plasmon 

excitations in graphene. Such excitations exhibit non-Planckian emission characteristics due to 

the atom-level confinement of the electromagnetic states, showing promise for ultrabright, 

ultrafast on-chip mid-infrared sources for various medical and defense applications. This 

mechanism is projected to outperform conventional mid-infrared light sources in brightness, 

speed and overall footprint. In the second part of the presentation, I will discuss an optical 

diamond metasurface coupled to nitrogen-vacancy (NV) spin ensembles that enables magnetic 

field sensing and imaging down to a 1 nT detection limit at room temperature. This quantum 

metasurface coherently encodes local magnetic field on spin-dependent phase and amplitude 

changes of near-telecom light. I will discuss how nanophotonic strategies provide opportunities 

to achieve near-unity optical spin readout fidelity for absorption-based readout, as opposed to 

conventional fluorescence detection. The projected performance makes the studied quantum 

imaging metasurface appealing for the most demanding applications such as imaging through 

scattering tissues and spatially resolved chemical NMR detection. This quantum optical imaging 

system paves the way for a new type of quantum micro(nano)scopy. 

| Host | 이태우 교수 (02-880-8021)