Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

The Japan Society of Applied Physics

Nitrogen impurity control for high sensitivity of diamond quantum sensor

Takaki Ashida, Kan Hayashi, Takashi Taniguchi, Hiroki Morishita, Masanori Fujiwara, Mutsuko Hatano, Norikazu Mizuochi

Published Jul 21, 2017• 0 citations
OpenAlex

Related papers

Study on electron spin control method for high-sensitivity diamond quantum sensor

Tomioka, Hiroyoshi, Yuji Hatano, T. Sekiguchi +6 more

Study on electron spin control method for high-sensitivity diamond quantum sensor

•Dec 8, 2021•0 citations

Study on electron spin control method for high-sensitivity diamond quantum sensor

寛凱 富岡, Hiroyoshi Tomioka, 雄治 波多野 +9 more

•Dec 1, 2021•0 citations

Growth of thick CVD diamond films containing aligned nitrogen-vacancy centers for high-sensitivity quantum sensors

赳行 辻, Takeyuki Tsuji, 孝之 岩崎 +3 more

•Nov 1, 2022•0 citations

Hands-on quantum sensing with NV centers in diamond

J. L. Sánchez Toural, Victor Marzoa, Ramón Bernardo Gavito +2 more

The physical properties of diamond crystals, such as color or electrical conductivity, can be controlled via impurities.In particular, when doped with nitrogen and under certain conditions, optically active nitrogen-vacany centers (NV) can be induced.The center is an outstanding quantum spin system that enables, under ambient conditions, optical initialization, readout, and coherent microwave control with applications in sensing and quantum information.Under optical and radio frequency excitation, the Zeeman splitting of the degenerate states allows the quantitative measurement of external magnetic fields with high sensitivity.This study provides a pedagogical introduction to the properties of the NV centers as well as a step-by-step process to develop and test, a simple magnetic quantum sensor based on color centers with large potential for the development of highly compact multi-sensor systems.

•Sep 12, 2022•0 citations

High-sensitivity Quantum Diamond Sensing and Applications

Keigo Arai

The Japan Society of Applied Physics•Jan 26, 2021•0 citations

On the Formation of Dense Arrays of Nitrogen–Vacancy Centers in Synthetic Single-Crystal Diamonds for Quantum Sensors

Сергей Александрович Тарелкин, Stepan V. Bolshedvorskii, С.Г. Буга +10 more

The dynamics of the formation of ensembles of nitrogen–vacancy color centers (NV centers) in single-crystal diamond plates after irradiation by high-energy (2 MeV) electrons and subsequent annealing is investigated. The concentration of the nitrogen impurity is determined from the infrared (IR) absorption spectrum to be 90 and 4 ppm for the diamond growth sectors {111} and {001}, respectively. The transverse relaxation times $$T_{2}^{*}$$ for the electron spin of NV centers are studied; they are found to amount to 200 and 900 ns for the {111} and {001} sectors, respectively, and are limited by the concentration of paramagnetic impurity defects in diamond. The sensitivity of quantum sensors based on the obtained ensembles of NV centers is estimated; the estimation shows feasibility of using denser ensembles in low-field magnetometry.

Nanobiotechnology Reports•Aug 1, 2022•1 citation
The physical properties of diamond crystals, such as color or electrical conductivity, can be controlled via impurities.In particular, when doped with nitrogen and under certain conditions, optically active nitrogen-vacany centers (NV) can be induced.The center is an outstanding quantum spin system that enables, under ambient conditions, optical initialization, readout, and coherent microwave control with applications in sensing and quantum information.Under optical and radio frequency excitation, the Zeeman splitting of the degenerate states allows the quantitative measurement of external magnetic fields with high sensitivity.This study provides a pedagogical introduction to the properties of the NV centers as well as a step-by-step process to develop and test, a simple magnetic quantum sensor based on color centers with large potential for the development of highly compact multi-sensor systems.
The dynamics of the formation of ensembles of nitrogen–vacancy color centers (NV centers) in single-crystal diamond plates after irradiation by high-energy (2 MeV) electrons and subsequent annealing is investigated. The concentration of the nitrogen impurity is determined from the infrared (IR) absorption spectrum to be 90 and 4 ppm for the diamond growth sectors {111} and {001}, respectively. The transverse relaxation times T2∗T_{2}^{*}T2∗​ for the electron spin of NV centers are studied; they are found to amount to 200 and 900 ns for the {111} and {001} sectors, respectively, and are limited by the concentration of paramagnetic impurity defects in diamond. The sensitivity of quantum sensors based on the obtained ensembles of NV centers is estimated; the estimation shows feasibility of using denser ensembles in low-field magnetometry.