A Weak Magnetic Field Sensor Based on Nitrogen-Vacancy Color Centers in a Diamond Crystal
A. K. Vershovskiĭ, A. K. Dmitriev
Abstract
Abstract The effect of magnetically dependent absorption of radio-frequency high-frequency radiation detected by the method of optically detected magnetic resonance has been studied, and an explanation for it is proposed. A method of high-frequency excitation of optically detected magnetic resonance in nitrogen-vacancy color centers in a diamond crystal has been experimentally studied that provides magnetometric sensitivity at the level of units of nanoteslas in the 1-Hz band in zero and weak (<0.1 mT) magnetic fields. The method does not involve the use of microwave fields, which makes it attractive for biological and medical applications, primarily for tasks of invasive magnetoencephalography.
Topics & Concepts
DiamondExcitationMagnetic fieldMaterials scienceCrystal (programming language)Vacancy defectMicrowaveAbsorption (acoustics)MagnetometerNitrogenSensitivity (control systems)ParamagnetismOptoelectronicsNuclear magnetic resonanceAtomic physicsCondensed matter physicsPhysicsElectronic engineeringQuantum mechanicsProgramming languageEngineeringComputer scienceComposite materialMechanical and Optical ResonatorsAtomic and Subatomic Physics ResearchDiamond and Carbon-based Materials Research