Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session B49: Optically Active Spins - Dots, Silicon, and Diamond
11:30 AM–2:30 PM,
Monday, March 4, 2024
Room: 200G
Sponsoring
Units:
DQI GMAG
Chair: Arshag Danageozian, Virignia Tech
Abstract: B49.00008 : Quantum sensing of electric field distributions of liquid electrolytes with NV-centers in nanodiamonds
1:18 PM–1:30 PM
Presenter:
Maximilian Hollendonner
(Friedrich-Alexander University Erlangen-Nürnberg)
Authors:
Maximilian Hollendonner
(Friedrich-Alexander University Erlangen-Nürnberg)
Sanchar Sharma
(Max Planck Institute for Science of Light)
Shravan Parthasarathy
(Fraunhofer Institute for Integrated Systems and Device Technology (IISB), 91058 Erlangen, Germany)
Durga Dasari
(3. Physikalisches Institut, ZAQuant, University of Stuttgart, 70569 Stuttgart, Germany)
Amit Finkler
(Weizmann Institute of Science)
Silvia Viola Kusminskiy
(Institute for Theoretical Solid State Physics, RWTH Aachen University, 52074 Aachen, Germany)
Roland Nagy
(Group of Applied Quantum Technologies)
We propose to use nanodiamonds containing single NV-centers as label-free sensors [1] inside the liquid electrolyte of a battery [2]. From theoretical considerations we found out that variants of the Free-Induction-Decay (FID) allow to determine the mean electric field components, where we took into account how the electric field components act on the NV-centers ground state spin states. This allows us to derive three FID variations which have the ability to measure the mean electric field vector in the reference frame of the NV-center, if our pulse sequences are performed sequentially. In addition, we show that a specially designed pulse sequence based on three polarized π pulses enables to also measure the electric field fluctuations. Our proposed scheme therefore has the ability to fully reconstruct the electric field distribution inside the liquid electrolyte via nanodiamonds with a single NV-center. This not only allows to deduce local ionic concentrations but will also help to understand molecular processes inside the liquid electrolyte while the battery is being operated.
[1] R. P. Friedrich, M. Kappes, I. Cicha, R. Tietze, C. Braun, R. Schneider-Stock, R. Nagy, C. Alexiou, C. Janko, Optical Microscopy Systems for the Detection of Unlabeled Nanoparticles, International Journal of Nanomedicine 17, 2139-2163 (2022)
[2] M. Hollendonner. S. Sharma, S. K. Parthasarathy, D. B. R. Dasari, A. Finkler, S. V. Kusminskiy and R. Nagy, Quantum sensing of electric field distributions of liquid electrolytes with NV-centers in nanodiamonds, New J. Phys. 25 093008 (2023)
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