6533b854fe1ef96bd12ae96a
RESEARCH PRODUCT
Level anti-crossing magnetometry with color centers in diamond
Georgios ChatzidrososRuvin FerberMarcis AuzinshAndris BerzinsArne WickenbrockReinis LazdaFlorian GahbauerHuijie ZhengLykourgos BougasDmitry Budkersubject
PhotoluminescenceMaterials scienceMagnetometerMagnetismchemistry.chemical_elementFOS: Physical sciences02 engineering and technologyengineering.material01 natural scienceslaw.inventionNuclear magnetic resonancelaw0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)010306 general physicsAbsorption (electromagnetic radiation)Quantum PhysicsCondensed Matter - Mesoscale and Nanoscale Physicsbusiness.industryDiamond021001 nanoscience & nanotechnologyMeitneriumLaserchemistryengineeringOptoelectronics0210 nano-technologybusinessQuantum Physics (quant-ph)Microwavedescription
Recent developments in magnetic field sensing with negatively charged nitrogen-vacancy centers (NV) in diamond employ magnetic-field (MF) dependent features in the photoluminescence (PL) and eliminate the need for microwaves (MW). Here, we study two approaches towards improving the magnetometric sensitivity using the ground-state level anti-crossing (GSLAC) feature of the NV center at a background MF of 102.4\,mT. Following the first approach, we investigate the feature parameters for precise alignment in a dilute diamond sample; the second approach extends the sensing protocol into absorption via detection of the GSLAC in the diamond transmission of a 1042\,nm laser beam. This leads to an increase of GSLAC contrast and results in a magnetometer with a sensitivity of 0.45\,nT/$\sqrt{\text{Hz}}$ and a photon shot-noise limited sensitivity of 12.2 pT/$\sqrt{\rm{Hz}}$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 | Slow Light, Fast Light, and Opto-Atomic Precision Metrology X |