Photoluminescence at the ground state level anticrossing of the nitrogen-vacancy center in diamond

Abstract

The nitrogen-vacancy center (NV center) in diamond at magnetic fields corresponding to the ground state level anticrossing (GSLAC) region gives rise to rich photoluminescence (PL) signals due to the vanishing energy gap between the electron spin states, which enables to have an effect on the NV center's luminescence for a broad variety of environmental couplings. In this article we report on the GSLAC photoluminescence signature of NV ensembles in different spin environments at various external fields. We investigate the effects of transverse electric and magnetic fields, P1 centers, NV centers, and the ${}^{13}$C nuclear spins, each of which gives rise to a unique PL signature at the GSLAC. The comprehensive analysis of the couplings and related optical signal at the GSLAC provides a solid ground for advancing various microwave-free applications at the GSLAC, including but not limited to magnetometry, spectroscopy, dynamic nuclear polarization (DNP), and nuclear magnetic resonance (NMR) detection. We demonstrate that not only the most abundant ${}^{14}$NV center but the ${}^{15}$NV can also be utilized in such applications and that nuclear spins coupled to P1 centers can be polarized directly by the NV center at the GSLAC, through a giant effective nuclear $g$-factor arising from the NV center-P1 center-nuclear spin coupling. We report on new alternative for measuring defect concentration in the vicinity of NV centers and on the optical signatures of interacting, mutually aligned NV centers.

References in corpus (5)

• Dynamic polarization of single nuclear spins by optical pumping of NV color centers in diamond at room temperature
• Resolved sidebands in a strain-coupled hybrid spin-oscillator system
• Spin dynamics of diamond nitrogen-vacancy centres at the ground state level anti-crossing and all-optical low frequency magnetic field sensing
• Longitudinal spin relaxation model applied to point defect qubit systems
• Two-electron-spin ratchets as a platform for microwave-free dynamic nuclear polarization of arbitrary material targets

Cited by in corpus (13)

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• Interplay between charge and spin noise in the near-surface theory of decoherence and relaxation of $C_{3v}$ symmetry qutrit spin-1 centers
• Electrical readout microwave-free sensing with diamond
• Efficient and all-carbon electrical readout of a NV based quantum sensor
• Low-field microwave-free sensors using dipolar spin relaxation of quartet spin states in silicon carbide
• Material Platforms for Defect Qubits and Single Photon Emitters
• Dynamical nuclear polarization for dissipation-induced entanglement in NV centers
• Digital Twin Simulations Toolbox of the Nitrogen-Vacancy Center in Diamond
• Energy exchange statistics and fluctuation theorem for non-thermal asymptotic states