Results 1 to 10 of about 16,791 (189)

NV‐plasmonics: modifying optical emission of an NV ⁻ center via plasmonic metal nanoparticles [PDF]

Nanophotonics, 2022
Abstract The nitrogen-vacancy (NV) center in diamond is very sensitive to magnetic and electric fields, strain, and temperature. In addition, it is possible to optically interrogate individual defects, making it an ideal quantum-limited sensor with nanoscale resolution.
Harini Hapuarachchi, Francesco Campaioli, Jared H. Cole   +2 more
openalex   +4 more sources

Controlled Surface Modification to Revive Shallow NV^- Centers. [PDF]

Nano Lett, 2023
Near-surface negatively charged nitrogen vacancy (NV) centers hold excellent promise for nanoscale magnetic imaging and quantum sensing. However, they often experience charge-state instabilities, leading to strongly reduced fluorescence and NV coherence time, which negatively impact magnetic imaging sensitivity.
Neethirajan JN, Hache T, Paone D, Pinto D, Denisenko A, Stöhr R, Udvarhelyi P, Pershin A, Gali A, Wrachtrup J, Kern K, Singha A.   +11 more
europepmc   +3 more sources

Relaxometry with Nitrogen Vacancy (NV) Centers in Diamond. [PDF]

Acc Chem Res, 2022
Relaxometry is a technique which makes use of a specific crystal lattice defect in diamond, the so-called NV center. This defect consists of a nitrogen atom, which replaces a carbon atom in the diamond lattice, and an adjacent vacancy. NV centers allow converting magnetic noise into optical signals, which dramatically increases the sensitivity of the ...
Mzyk A, Sigaeva A, Schirhagl R.
europepmc   +4 more sources

Photonic Quantum Networks formed from NV(-) centers. [PDF]

Sci Rep, 2016
AbstractIn this article we present a simple repeater scheme based on the negatively-charged nitrogen vacancy centre in diamond. Each repeater node is built from modules comprising an optical cavity containing a single NV−, with one nuclear spin from 15N as quantum memory.
Nemoto K, Trupke M, Devitt SJ, Scharfenberger B, Buczak K, Schmiedmayer J, Munro WJ.   +6 more
europepmc   +5 more sources

Detecting Single Microwave Photons with NV Centers in Diamond. [PDF]

Materials (Basel), 2023
We propose a scheme for detecting single microwave photons using dipole-induced transparency (DIT) in an optical cavity resonantly coupled to a spin-selective transition of a negatively charged nitrogen-vacancy (NV−) defect in diamond crystal lattices.
Woodman O, Pasharavesh A, Wilson C, Bajcsy M.   +3 more
europepmc   +3 more sources

Atomic-scale imaging and charge state manipulation of NV centers by scanning tunneling microscopy [PDF]

Nature Communications
Nitrogen-vacancy (NV) centers in diamond are among the most promising solid-state qubit candidates, owing to their exceptionally long spin coherence times, efficient spin-photon coupling, room-temperature operation, and steadily advancing fabrication and
Arjun Raghavan, Seokjin Bae, Nazar Delegan, F. Joseph Heremans, Vidya Madhavan   +4 more
doaj   +2 more sources

Surface coupling of NV centers over nanoscale lengths [PDF]

Nano Letters
Shallow nitrogen-vacancy (NV-) centers in diamond are among the most promising quantum sensors, offering high sensitivity and nanoscale spatial resolution. These systems are, however, prone to decoherence due to coupling with surface states. Here, we study sub-surface NV- centers embedded into large diamond slabs (8 nm) using various surface ...
Arsineh Apelian, Mariya Romanova, Vojtěch Vlček   +2 more
openalex   +3 more sources

Fluorescence modulation of nanodiamond NV^- centers for neurochemical detection. [PDF]

MRS Adv, 2022
Nanodiamond (ND) with nitrogen vacancy (NV-) color centers has emerged as an important material for quantum sensing and imaging. Fluorescent, carboxylated ND (140 nm) is investigated for the detection of dopamine (DA), caffeine (CA), and ascorbic acid (AA). Over a 200 nM range, DA and CA quenched the ND fluorescence by 7.1 and 9.8%, respectively.
Rashwan MS, Anwar ZM, Baskaran H, Martin HB.   +3 more
europepmc   +3 more sources

A coherence-protection scheme for quantum sensors based on ultra-shallow single nitrogen-vacancy centers in diamond [PDF]

Nature Communications
High spatial resolution quantum sensing of near-surface nitrogen vacancy (NV) centers in diamond has enabled detection of magnetic, electrical, and thermal signals at the nanoscale.
Anton Pershin, András Tárkányi, Vladimir Verkhovlyuk, Viktor Ivády, Adam Gali   +4 more
doaj   +2 more sources

Scalable nanoscale positioning of highly coherent color centers in prefabricated diamond nanostructures [PDF]

Nature Communications
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 remains a ...
Sunghoon Kim, Paz London, Daipeng Yang, Lillian B. Hughes, Jeffrey Ahlers, Simon Meynell, William J. Mitchell, Kunal Mukherjee, Ania C. Bleszynski Jayich   +8 more
doaj   +2 more sources