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We demonstrate a highly sensitive real-time magnetometry method at two measurement points. This magnetometry method is based on the frequency-division multiplexing of continuous-wave optically detected magnetic resonance. We use two…

We experimentally demonstrate magnetic steganography using wide field quantum microscopy based on diamond nitrogen vacancy centers. The method offers magnetic imaging capable of revealing concealed information otherwise invisible with…

Quantum Physics · Physics 2024-11-20 Jungbae Yoon , Jugyeong Jeong , Hyunjun Jang , Jinsu Jung , Yuhan Lee , Chulki Kim , Nojoon Myoung , Donghun Lee

A sensitive vector magnetometry with high spatial resolution is important for various practical applications, such as magnetocardiography, magnetoencephalography, explosive materials detection and many others. We propose a magnetometer…

Applied Physics · Physics 2021-07-07 D. O. Ignatyeva , G. A. Knyazev , A. N. Kalish , A. I. Chernov , V. I. Belotelov

Solid state spins in diamond, in particular negatively charged nitrogen-vacancy centers (NV), are leading contenders in the field of quantum sensing. While addressing of single NVs offers nanoscale spatial resolution, many implementations…

Quantum Physics · Physics 2023-01-11 Yuchun Zhu , Elena Losero , Christophe Galland , Valentin Goblot

An experiment consisting of a network of sensors can endow several advantages over an experiment with a single sensor: improved sensitivity, error corrections, spatial resolution, etc. However, there is often a question of how to optimally…

Instrumentation and Detectors · Physics 2022-01-11 Joseph A. Smiga

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

Nitrogen-vacancy (NV) centers in nanodiamonds have emerged as a promising quantum sensing platform for biomedical imaging applications, yet random orientations of individual particles present significant challenges in large-scale sensor…

Quantum Physics · Physics 2025-07-09 Yizhou Wang , Haochen Shen , Zhongyuan Liu , Yue Yu , Shengwang Du , Chong Zu , Chuanwei Zhang

Recently there have been several theoretical and experimental studies of the prospects for magnetic field sensors based on crystal defects, especially nitrogen vacancy (NV) centres in diamond. Such systems could potentially be incorporated…

Materials Science · Physics 2011-11-15 Marcus Schaffry , Erik M. Gauger , John J. L. Morton , Simon C. Benjamin

New magnetometry techniques based on Nitrogen-Vacancy (NV) defects in diamond allow for the imaging of static (DC) and oscillatory (AC) nanoscopic magnetic systems. However, these techniques require accurate knowledge and control of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-26 Liam T. Hall , Charles D. Hill , Jared H. Cole , Lloyd C. L. Hollenberg

A Hall magnetometer with variable sensitivity is constructed to measure the magnetic properties of magnetic nanoparticles manufactured by different methods. This novel magnetometer can also be used to measure bulk materials and samples in…

Nanomagnetometry using the nitrogen-vacancy (NV) centre in diamond has attracted a great deal of interest because of the combined features of room temperature operation, nanoscale resolution and high sensitivity. One of the important goals…

We present a novel technique based on an ensemble of Nitrogen-Vacancy (NV) centers in diamond to perform Magnetic Current Imaging (MCI) on an Integrated Circuit (IC). NV centers in diamond allow measuring the three components of the…

Instrumentation and Detectors · Physics 2015-12-04 Antoine Nowodzinski , Mayeul Chipaux , Loïc Toraille , Vincent Jacques , Jean-François Roch , Thierry Debuisschert

Quantum technologies have seen a rapid developmental surge over the last couple of years. Though often overshadowed by quantum computation, quantum sensors show tremendous potential for widespread applications in chemistry and biology. One…

Quantum Physics · Physics 2022-05-30 Robin D. Allert , Karl D. Briegel , Dominik B. Bucher

Advances in sensing devices that utilize nitrogen-vacancy (NV) center ensembles in diamond are driving progress in microscale nuclear magnetic resonance spectroscopy. Utilizing quantum sensing techniques in the high-field regime…

Quantum Physics · Physics 2025-10-22 Ainitze Biteri-Uribarren , Ana Martin , Jorge Casanova

Solid-state spin systems including nitrogen-vacancy (NV) centers in diamond constitute an increasingly favored quantum sensing platform. However, present NV ensemble devices exhibit sensitivities orders of magnitude away from theoretical…

Quantum sensing exploits the strong sensitivity of quantum systems to measure small external signals. The nitrogen-vacancy (NV) center in diamond is one of the most promising platforms for real-world quantum sensing applications,…

Quantum Physics · Physics 2022-05-12 Ziwei Qiu , Uri Vool , Assaf Hamo , Amir Yacoby

Quantum sensing with solid-state spins offers the promise of high spatial resolution, bandwidth, and dynamic range at sensitivities comparable to more mature quantum sensing technologies, such as atomic vapor cells and superconducting…

Nitrogen-vacancy (NV) centers in diamond have shown promise as inherently localized electric-field sensors, capable of detecting individual charges with nanometer resolution. Working with NV ensembles, we demonstrate that a detailed…

Quantum Physics · Physics 2021-09-28 M. Block , B. Kobrin , A. Jarmola , S. Hsieh , C. Zu , N. L. Figueroa , V. M. Acosta , J. Minguzzi , J. R. Maze , D. Budker , N. Y. Yao

The nitrogen vacancy (NV) center in diamond has emerged as a leading solid-state quantum sensor for applications including magnetometry, electrometry, thermometry, and chemical sensing. However, an outstanding challenge for practical…

In this article we explore the requirements for enabling high quality optically detected magnetic resonance (ODMR) spectroscopy in a conventional gradient force optical tweezers using nanodiamonds containing nitrogen-vacancy (NV$^{-}$)…

Optics · Physics 2021-01-25 L. W. Russell , E. C. Dossetor , A. A. Wood , D. A. Simpson , P. J. Reece