AVS 62nd International Symposium & Exhibition
    Nanometer-scale Science and Technology Wednesday Sessions
       Session NS-WeM

Invited Paper NS-WeM10
Quantum Sensing in Biology using the Nitrogen-Vacancy Centre in Diamond

Wednesday, October 21, 2015, 11:00 am, Room 212B

Session: Nanodiamond for Optical and Biomedical Applications
Presenter: David Simpson, University of Melbourne, Australia
Authors: L.J. Hollenberg, University of Melbourne, Australia
D. Simpson, University of Melbourne, Australia
Correspondent: Click to Email
The nitrogen-vacancy (NV) defect centre in diamond can be used as a single spin quantum probe for nanoscale magnetometry. Optically, it possesses a broad absorption band from 512-560 nm, sustained fluorescence from 630-750 nm, is chemically inert and bio-compatible, making it ideal for room-temperature applications. The populations in the spin-1 sublevels of the NV ground state, which are sensitive to local magnetic fields, can be measured and polarised optically, and controlled via resonant microwave fields (~ 3 GHz). Through various quantum control schemes the NV centre has been used to detect static (DC), sinusoidal (AC) and fluctuating (FC) magnetic fields. This talk will briefly review some of the overall progress and applications of the NV centre in the detection of electronic and nuclear spins at the nanoscale, including our own work on the quantum measurement of nanodiamond-NV centres in a living cell, detection of Gd spin labels in a lipid bi-layer, and T1-based electron spin resonance techniques for the non-invasive detection of magnetic species.