High-frequency and high-field optically detected magnetic resonance of nitrogen-vacancy centers in diamond
Viktor Stepanov, Franklin H. Cho, Chathuranga Abeywardana and, Susumu Takahashi
TL;DR
This paper introduces a high-frequency, high-field ODMR system for studying single nitrogen-vacancy centers in diamond, enabling detailed magnetic resonance measurements at fields up to 8 Tesla.
Contribution
The development of a novel ODMR system capable of operating at 115 GHz and high magnetic fields for single defect analysis in solids.
Findings
Demonstrated 115 GHz ODMR of a single NV center at 4.2 Tesla.
Investigated the field dependence of NV centers' relaxation time ($T_1$) up to 8 Tesla.
Abstract
We present the development of an optically detected magnetic resonance (ODMR) system, which enables us to perform the ODMR measurements of a single defect in solids at high frequencies and high magnetic fields. Using the high-frequency and high-field ODMR system, we demonstrate 115 GHz continuous-wave and pulsed ODMR measurements of a single nitrogen-vacancy (NV) center in a diamond crystal at the magnetic field of 4.2 Tesla as well as investigation of field dependence ( Tesla) of the longitudinal relaxation time () of NV centers in nanodiamonds.
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