Room Temperature Operation of a Radiofrequency Diamond Magnetometer near the Shot Noise Limit

We operate a nitrogen vacancy (NV-) diamond magnetometer at ambient temperatures and study the dependence of its bandwidth on experimental parameters including optical and microwave excitation powers. We introduce an analytical theory that yields an explicit formula for the response of an ensemble o...

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Bibliographic Details
Published in:arXiv.org 2012-01
Main Authors: Shin, Chang S, Avalos, Claudia E, Butler, Mark C, Trease, David R, Seltzer, Scott J, Mustonen, J Peter, Kennedy, Daniel J, Acosta, Victor M, Budker, Dmitry, Pines, Alexander, Bajaj, Vikram S
Format: Article
Language:English
Subjects:
Dependence
Diamonds
NMR
Nuclear magnetic resonance
Radio frequency
Room temperature
Shot noise
Online Access:Get full text
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Summary:We operate a nitrogen vacancy (NV-) diamond magnetometer at ambient temperatures and study the dependence of its bandwidth on experimental parameters including optical and microwave excitation powers. We introduce an analytical theory that yields an explicit formula for the response of an ensemble of NV- spins to an oscillating magnetic field, such as in NMR applications. We measure a detection bandwidth of 1.6 MHz and a sensitivity of 4.6 nT/Hz^(1/2), unprecedented in a detector with this active volume and close to the photon shot noise limit of our experiment.
ISSN:2331-8422
DOI:10.48550/arxiv.1201.3152