72 citations · 211 across the 4 of their papers we have counts for
4 papers
Fiber-coupled Diamond Magnetometry with an Unshielded 30 pT/ Sensitivity
S. M. Graham, A. T. M. A. Rahman, L. Munn +9
Ensembles of nitrogen vacancy centres (NVCs) in diamond can be employed for sensitive magnetometry. In this work we present a fiber-coupled NVC magnetometer with an unshielded sens…
Imaging damage in steel using a diamond magnetometer
L. Q. Zhou, R. L. Patel, A. C. Frangeskou +6
We demonstrate a simple, robust and contactless method for non-destructive testing of magnetic materials such as steel. This uses a fiber-coupled magnetic sensor based on nitrogen…
Sub-nanotesla magnetometry with a fibre-coupled diamond sensor
R. L. Patel, L. Q. Zhou, A. C. Frangeskou +12
Sensing small magnetic fields is relevant for many applications ranging from geology to medical diagnosis. We present a fiber-coupled diamond magnetometer with a sensitivity of (31…
An open-source high-frequency lock-in amplifier
G. A. Stimpson, M. S. Skilbeck, R. L. Patel +2
We present characterization of a lock-in amplifier based on a field programmable gate array capable of demodulation at up to 50 MHz. The system exhibits 90 nV/sqrt(Hz) of input noi…