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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 (NV-) centre in diamond has many exciting applications in quantum nano-metrology, including magnetometry, electrometry, thermometry and piezometry. Indeed, it is possible for a single NV- centre to…

Substitutional nitrogen atoms in a diamond crystal (P1 centers) are, on one hand, a resource for creation of nitrogen-vacancy (NV) centers, that have been widely employed as nanoscale quantum sensors. On the other hand, P1's electron spin…

Enhancing the measurement signal from solid state quantum sensors such as the nitrogen-vacancy (NV) center in diamond is an important problem for sensing and imaging of condensed matter systems. Here we engineer diamond scanning probes with…

Mesoscale and Nanoscale Physics · Physics 2020-12-04 N. Hedrich , D. Rohner , M. Batzer , P. Maletinsky , B. J. Shields

The negatively-charged nitrogen-vacancy (NV) center in diamond is at the frontier of quantum nano-metrology and bio-sensing. Recent attention has focused on the application of high-sensitivity thermometry using the spin resonances of NV…

Quantum Physics · Physics 2015-02-26 Taras Plakhotnik , Marcus W. Doherty , Jared H. Cole , Robert Chapman , Neil B. Manson

Quantum sensing with spin defects in diamond, such as the nitrogen-vacancy (NV) center, enables the detection of various chemical species on the nanoscale. Molecules or ions with unpaired electronic spins are typically probed by their…

A broad effort is underway to improve the sensitivity of nuclear magnetic resonance through the use of dynamic nuclear polarization. Nitrogen-vacancy (NV) centers in diamond offer an appealing platform because these paramagnetic defects can…

We study the fluorescence of nanodiamond ensembles as a function of static external magnetic field and observe characteristic dip features close to the zero field with potential for magnetometry applications. We analyze the dependence of…

Nitrogen vacancy (NV) color centers in diamond have emerged as highly versatile optical emitters that exhibit room temperature spin properties. These characteristics make NV centers ideal for magnetometry, which plays an important role in…

Quantum Physics · Physics 2017-07-26 Kangmook Lim , Chad Ropp , Benjamin Shapiro , Jacob M. Taylor , Edo Waks

Solid-state spin defects are promising quantum sensors for a large variety of sensing targets. Some of these defects couple appreciably to strain in the host material. We propose to use this strain coupling for mechanically-mediated…

We demonstrate preferential orientation of nitrogen-vacancy (NV) color centers along two of four possible crystallographic axes in diamonds grown by chemical vapor deposition on the {100} face. We identify the relevant growth regime and…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 L. M. Pham , N. Bar-Gill , D. Le Sage , A. Stacey , M. Markham , D. J. Twitchen , M. D. Lukin , R. L. Walsworth

There has been much recent interest in extending the technique of magnetic resonance imaging (MRI) down to the level of single spins with sub-optical wavelength resolution. However, the signal to noise ratio for images of individual spins…

The nanoscale localization of individual paramagnetic defects near an electrical circuit is an important step for realizing hybrid quantum devices with strong spin-microwave photon coupling. Here, we demonstrate the fabrication of an array…

We present theoretical proposals for two-dimensional nuclear magnetic resonance spectroscopy protocols based on Nitrogen-vacancy (NV) centers in diamond that are strongly coupled to the target nuclei. Continuous microwave and…

Quantum Physics · Physics 2024-10-31 Matthias Kost , Jianming Cai , Martin B. Plenio

The dependence of the luminescence of diamonds with negatively charged nitrogen-vacancy centers (NV-) vs. applied magnetic field (magnetic spectrum) was studied. A narrow line in zero magnetic field was discovered. The properties of this…

Mesoscale and Nanoscale Physics · Physics 2014-07-04 S. V. Anishchik , V. G. Vins , A. P. Yelisseyev , N. N. Lukzen , N. L. Lavrik , V. A. Bagryansky

Symmetry considerations are used in presenting a model of the electronic structure and the associated dynamics of the nitrogen-vacancy center in diamond. The model accounts for the occurrence of optically induced spin polarization, for the…

Materials Science · Physics 2013-05-29 N. B. Manson , J. P. Harrison , M. J. Sellars

The localized spin triplet ground state of a nitrogen vacancy (NV) center in diamond can be used in atomic-scale detection of local magnetic fields. Here we present a technique using these defects in diamond to image fields around magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 B. J. Maertz , A. P. Wijnheijmer , G. D. Fuchs , M. E. Nowakowski , D. D. Awschalom

The ability to sensitively detect charges under ambient conditions would be a fascinating new tool benefitting a wide range of researchers across disciplines. However, most current techniques are limited to low-temperature methods like…

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

A dense layer of nitrogen-vacancy (NV) centers near the surface of a diamond can be interrogated in a widefield optical microscope to produce spatially resolved maps of local quantities such as magnetic field, electric field and lattice…