Fast, broad-band magnetic resonance spectroscopy with diamond widefield
relaxometry
- URL: http://arxiv.org/abs/2212.06087v2
- Date: Tue, 13 Dec 2022 13:28:39 GMT
- Title: Fast, broad-band magnetic resonance spectroscopy with diamond widefield
relaxometry
- Authors: C. Mignon, A. R. Ortiz Moreno, H. Shirzad, S. K. Padamati, V. Damle,
Y. Ong, R. Schirhagl, M. Chipaux
- Abstract summary: We present an alternative to conventional Electron Paramagnetic Resonance spectroscopy equipment.
We use the photoluminescence of an ensemble of Nitrogen-Vacancy centers at the surface of a diamond.
Monitoring their relaxation time (or T1), we detected their cross-relaxation with the compound of interest.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We present an alternative to conventional Electron Paramagnetic Resonance
spectroscopy equipment. Avoiding the use of bulky magnets and magnetron
equipment, we use the photoluminescence of an ensemble of Nitrogen-Vacancy
centers at the surface of a diamond. Monitoring their relaxation time (or T1),
we detected their cross-relaxation with the compound of interest. In addition,
the EPR spectra is encoded through a localized magnetic field gradient. While
12 minutes was necessary to record each data point of the spectrum with
previous individual NV center's technics, we are able to reconstruct a full
spectrum at once in 3 seconds, over a range from 3 to 11 gauss. In term of
sensitivity, only 0.5 microliter of a hexaaquacopper (II) ion solution with 1
micromole per liter concentration was necessary.
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