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Camera-based wide-field quantum noise spectroscopy (QNS) with nitrogen-vacancy (NV) center spins in diamond can be used to extract DC and AC magnetic field noise with sub-micrometer spatial resolution, but its realization is currently…

Quantum Physics · Physics 2025-09-16 Jiahui Chen , Qilong Wu , Huihui Yu , Yi-Dan Qu , Yuan Zhang , Xun Yang , Chong-Xin Shan

We studied the dynamic nuclear spin polarization of nitrogen in negatively charged nitrogen-vacancy (NV) centers in diamond both experimentally and theoretically over a wide range of magnetic fields from 0 to 1100 G covering both the…

Quantum Physics · Physics 2021-01-04 Laima Busaite , Reinis Lazda , Andris Berzins , Marcis Auzinsh , Ruvin Ferber , Florian Gahbauer

The negatively charged nitrogen-vacancy center (NV) presents remarkable spin-dependent optical properties that make it an interesting tool for magnetic field sensing. In this paper we exploit the polarization properties of the NV center…

Quantum Physics · Physics 2023-01-31 Simone Magaletti , Ludovic Mayer , Xuan Phuc Le , Thierry Debuisschert

The photophysics and charge state dynamics of the nitrogen vacancy (NV) center in diamond has been extensively investigated but is still not fully understood. In contrast to previous work, we find that NV$^{0}$ converts to NV$^{-}$ under…

Materials Science · Physics 2016-07-13 Peng Ji , M. V. Gurudev Dutt

We report on a mathematical model of the photoelectric response of NV colour centres in diamond, that can be employed for sensing and quantum science information applications. Although the model applies to NV centre in diamond, it can be…

Quantum Physics · Physics 2026-01-15 Josef Soucek , Michael Petrov , Michal Gulka , Emilie Bourgeois , Milos Nesladek

Shallow nitrogen-vacancy (NV) centers in diamond offer unique opportunities for studying photochemical reactions at the single-molecule level, such as the photogeneration of radical pairs in proximal molecules. A prerequesite for such…

The electrical conductivity of a material can feature subtle, nontrivial, and spatially-varying signatures with critical insight into the material's underlying physics. Here we demonstrate a conductivity imaging technique based on the…

Mesoscale and Nanoscale Physics · Physics 2018-06-26 Amila Ariyaratne , Dolev Bluvstein , Bryan A. Myers , Ania C. Bleszynski Jayich

Sensing of signals from biological processes, such as action potential propagation in nerves, are essential for clinical diagnosis and basic understanding of physiology. Sensing can be performed electrically by placing sensor probes near or…

Nitrogen vacancy (NV) centers in diamond are at the heart of many emerging quantum technologies, all of which require control over the NV charge state. Hence, methods for quantification of the relative photoluminescence (PL) intensities of…

The positively charged nitrogen vacancy (NV+) centre in diamond has been traditionally treated as a dark state due to the experimental lack of an optical signature. Recent computational studies have shown that it is possible for the NV+…

Mesoscale and Nanoscale Physics · Physics 2022-01-05 Akib Karim , Igor Lyskov , Salvy P. Russo , Alberto Peruzzo

Nitrogen-vacancy (NV) centers in diamond are versatile candidates for many quantum information processing tasks, ranging from quantum imaging and sensing through to quantum communication and fault-tolerant quantum computers. Critical to…

Quantum Physics · Physics 2017-12-13 Michael Hanks , Michael Trupke , Jörg Schmiedmayer , William J. Munro , Kae Nemoto

Spin waves, the fundamental excitations in magnetic materials, are promising candidates for realizing low-dissipation information processing in spintronics. The ability to visualize and manipulate coherent spin-wave transport is crucial for…

Mesoscale and Nanoscale Physics · Physics 2024-05-06 Carolina Lüthi , Lukas Colombo , Franz Vilsmeier , Christian Back

Precision sensing and imaging of weak static magnetic fields are crucial for a variety of emerging nanoscale applications. While nitrogen-vacancy (NV) centers in diamond provide exceptional AC magnetic field sensitivity with nanoscale…

We propose an all-optical scheme to prolong the quantum coherence of a negatively charged nitrogen-vacancy (NV) center in diamond. Optical control of the NV spin suppresses energy fluctuations of the $^{3}\text{A}_{2}$ ground states and…

Quantum Physics · Physics 2014-08-18 Zhen-Yu Wang , Jian-Ming Cai , Alex Retzker , Martin B. Plenio

Nitrogen-vacancy (NV) centers are defects in diamonds, which, due to their electronic structure, have been extensively studied as magnetic field sensors. Such field detection applications usually employ the NV centers to detect field…

Quantum Physics · Physics 2016-06-07 Shonali Dhingra , Brian D'Urso

Diamonds with nitrogen-vacancy (NV) center ensembles are one of the most promising solid-state quantum platforms for various sensing applications. The combination of a long spin dephasing time ($T_2^*$) and a high NV center concentration is…

The nitrogen vacancy (NV) center in diamond is a sensitive probe of magnetic field and a promising qubit candidate for quantum information processing. The performance of many NV-based devices improves by aligning the NV(s) parallel to a…

Other Condensed Matter · Physics 2015-06-19 Todd Karin , Scott Dunham , Kai-Mei Fu

The Nitrogen-Vacancy (NV) defect in diamond is a unique quantum system that offers precision sensing of nanoscale physical quantities beyond the current state-of-the-art. Here we present a method to controllably encode the interactions in…

Ensembles of nitrogen-vacancy (NV) centers in diamond are versatile quantum sensors with broad applications in the physical and life sciences. The concentration of neutral substitutional nitrogen ([N$_\text{s}^0$]) strongly influences…

We report a study of the magnetic field dependence of photoluminescence of NV$^-$ centers (negatively charged nitrogen-vacancy centers) in diamond single crystals. In such a magnetic field dependence characteristic sharp features are…

Quantum Physics · Physics 2017-09-27 Sergei V. Anishchik , Konstantin L. Ivanov