Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session Z05: Nanoscale and Atomic Materials
11:30 AM–1:30 PM,
Friday, March 8, 2024
Room: L100E
Sponsoring
Unit:
DMP
Chair: Emily McGuinness, University of Minnesota
Abstract: Z05.00001 : Magnetic Field Enhancement from a Single Split Ring Resonator using Optically Detected Magnetic Resonance of the Nitrogen Vacancy Center in Diamond at 4.2 T and 115 GHz
11:30 AM–11:42 AM
Presenter:
Michael H Coumans
(University of Southern California)
Authors:
Michael H Coumans
(University of Southern California)
Dieter Suter
(TU Dortmund)
Anton Savitsky
(TU Dortmund)
Susumu Takahashi
(Univ of Southern California)
In this work, we report on the development and characterization of a planar metamaterial, the edge-coupled split-ring resonator (SRR), used to enhance the local magnetic field at 115 GHz on a microscopic scale. Electromagnetic field simulation show that a single resonator structure improves the transverse magnetic field strength by a factor of 11 with -15.11 dB absorptive coupling at 113.2 GHz and an unloaded Q factor of 43. Initial experiments agree with this very well. As a subsequent demonstration, we aim to show this magnetic field enhancement from a single SRR through Optically Detected Magnetic Resonance (ODMR) experiments of the Nitrogen Vacancy (NV) center in diamond at 4.2 T. We expect the MW pi pulse to be between 5-10 ns at 4.2 T based on the simulation results. Combining the MW enhancement of a planar resonator with the advantages ODMR of the NV-center at high magnetic fields[2] may offer further improvements in sensitivity and resolution and help realize highly interesting studies of 2-dimensional materials and spin-limited samples on the micro- and nano-scale.
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