Optimizing Diamond for Application to Laser Threshold Magnetometry
Abstract
This proposal aims to enable a new class of room-temperature ultra-sensitive magnetometers based on our newly discovered approach: laser threshold magnetometry (LTM). By using nitrogen-vacancy colour centres in diamond we predict that these magnetometers will demonstrate at least femto-Tesla per root Hertz sensitivity with millimeter size detectors, and have the potential to replace cryogenic SQUID magnetometers. Our preliminary modeling and experimental studies have developed the concept of LTM, and the first verified stimulated emission from ensembles of nitrogen-vacancy colour centres in diamond. This proposal is to explore and optimize the diamond material for laser applications. In particular we need to understand and optimize the ratio of nitrogen to nitrogen-vacancy in synthetic diamond, as residual nitrogen acts as a weak absorber, and optimize the alignment of the nitrogen-vacancy centres.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 19, 2018
- Source ID
- FA23861814056
Entities
People
- Andrew D Greentree
Organizations
- Air Force Office of Scientific Research
- RMIT University
- United States Air Force