2 papers
physics.app-ph2020
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…
physics.ins-det2018
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…