Prediction and measurement of the size-dependent stability of fluorescence in diamond over the entire nanoscale.
Fluorescent defects in noncytotoxic diamond nanoparticles are candidates for qubits in quantum computing, optical labels in biomedical imaging, and sensors in magnetometry. For each application these defects need to be optically and thermodynamically stable and included in individual particles at suitable concentrations (singly or in large numbers). In this Letter, we combine simulations, theory, and experiment to provide the first comprehensive and generic prediction of the size, temperature, and nitrogen-concentration-dependent stability of optically active N-V defects in nanodiamonds.
Bradac
Carlo
C
Center for Quantum Science and Technology, Department of Physics, Macquarie University, Sydney, NSW 2109, Australia.
Gaebel
Torsten
T
Naidoo
Nishen
N
Rabeau
James R
JR
Barnard
Amanda S
AS