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Nitrogen-vacancy (NV) centers in diamond have been successfully coupled to various optical structures to enhance their radiation by the Purcell effect. The participation of many NV centers in these studies may naturally lead to cooperative…

Quantum Physics · Physics 2024-07-16 Yi-Dan Qu , Yuan Zhang , Peinan Ni , Chongxin Shan , Hunger David , Klaus Mølmer

Solid-state spins in diamond are promising building blocks for quantum computing and quantum sensing, both of which require precise nanoscale addressing of individual spins. To explore the resolution limit of this approach, we demonstrate…

Quantum Physics · Physics 2026-03-25 Peihan Lei , You Huang , Zhi Cheng , Fazhan Shi , Pengfei Wang

We studied the parameters to optimize the production of negatively-charged nitrogen-vacancy color centers (NV-) in type~1b single crystal diamond using proton irradiation followed by thermal annealing under vacuum. Several samples were…

Materials Science · Physics 2015-05-28 J. Botsoa , T. Sauvage , M. -P. Adam , P. Desgardin , E. Leoni , B. Courtois , F. Treussart , M. -F. Barthe

Deep defects in wide band gap semiconductors have emerged as leading qubit candidates for realizing quantum sensing and information applications. Due to the spatial localization of the defect states, these deep defects can be considered as…

Nitrogen vacancy (NV) centers in diamond have distinct promise as solid-state qubits. This is because of their large dipole moment, convenient level structure and very long room-temperature coherence times. In general, a combination of ion…

The current generation of quantum sensing technologies using color centers in diamond crystals is primarily based on the principle that the resonant microwave frequency of the luminescence between quantum levels of the nitrogen-vacancy (NV)…

Quantum Physics · Physics 2022-06-22 Ryosuke Sakurai , Yuta Kainuma , Toshu An , Hidemi Shigekawa , Muneaki Hase

The nitrogen-vacancy (NV) center is a well utilized system for quantum technology, in particular quantum sensing and microscopy. Fully employing the NV center's capabilities for metrology requires a strong understanding of the behavior of…

Mesoscale and Nanoscale Physics · Physics 2019-03-13 M. S. J. Barson , P. M. Reddy , S. Yang , N. B. Manson , J. Wrachtrup , M. W. Doherty

We present the controlled creation of single nitrogen-vacancy (NV) centers via ion implantation at the center of a photonic crystal cavity which is fabricated in an ultrapure, single crystal diamond membrane. High-resolution placement of NV…

As the ability to integrate single photon emitters into photonic architectures improves, so does the need to characterize and understand their interaction. Here, we use a scanning diamond nanocrystal to investigate the interplay between the…

Magnetometers based on nitrogen-vacancy (NV) centers in diamond have emerged as the most important solid-state quantum sensors. However, ensembles are limited in optical contrast to typically a few percent and high-sensitivity variants…

Negatively charged nitrogen-vacancy (NV) center in diamond is the representative solid state defect qubit for quantum information science, offering long coherence time at room temperature. To achieve high sensitivity and spatial resolution,…

Materials Science · Physics 2025-08-12 Pei Li , Guanjian Hu , Xiao Yu , Bing Huang , Song Li

Nanophotonic devices in color center-containing hosts provide efficient readout, control, and entanglement of the embedded emitters. Yet control over color center formation - in number, position, and coherence - in nanophotonic devices…

The nitrogen-vacancy (NV) center in diamond has been established as a prime building block for quantum networks. However, scaling beyond a few network nodes is currently limited by low spin-photon entanglement rates, resulting from the NV…

Quantum Physics · Physics 2021-02-24 Maximilian Ruf , Matthew J. Weaver , Suzanne B. van Dam , Ronald Hanson

The electronic spins of the nitrogen-vacancy centers (NV centers) in Chemical-Vapor-Deposition (CVD) grown diamonds form ideal probes of magnetic fields and temperature, as well as promising qu-bits for quantum information processing.…

Quantum Physics · Physics 2021-03-31 C. Pellet-Mary , P. Huillery , M. Perdriat , A. Tallaire , G. Hétet

Single charge detection with nanoscale spatial resolution in ambient conditions is a current frontier in metrology that has diverse interdisciplinary applications. Here, such single charge detection is demonstrated using two…

The use of diamond color centers such as the nitrogen-vacancy (NV) center is increasingly enabling quantum sensing and computing applications. Novel concepts like cavity coupling and readout, laser threshold magnetometry and multi-pass…

Quantum Physics · Physics 2023-03-15 T. Luo , F. A. Hahl , J. Langer , V. Cimalla , L. Lindner , X. Vidal , M. Haertelt , R. Blinder , S. Onoda , T. Ohshima , J. Jeske

As a point defect with unique spin and optical properties, nitrogen-vacancy (NV) center in diamond has attracted much attention in the fields of quantum sensing, quantum simulation, and quantum networks. The optical properties of an NV…

Silicon-vacancy color centers in nanodiamonds are promising as fluorescent labels for biological applications, with a narrow, non-bleaching emission line at 738\,nm. Two-photon excitation of this fluorescence offers the possibility of…

We demonstrate a technique to nanofabricate nitrogen vacancy (NV) centers in diamond based on broad-beam nitrogen implantation through apertures in electron beam lithography resist. This method enables high-throughput nanofabrication of…

Mesoscale and Nanoscale Physics · Physics 2010-08-02 David M. Toyli , Christoph D. Weis , Gregory D. Fuchs , Thomas Schenkel , David D. Awschalom

Nitrogen-vacancy (NV) centers in diamond can be used for nanoscale sensing with atomic resolution and sensitivity; however, it has been observed that their properties degrade as they approach the diamond surface. Here we report that in…