High Frequency Atomic Magnetometer by Use of Electromagnetically Induced Transparency
George E. Katsoprinakis, David Petrosyan, Iannis K. Kominis
Atomic magnetometers have achieved magnetic sensitivities in the subfemtotesla regime. Their bandwidth is determined by the transverse spin relaxation rate, 1/T2, which also determines the magnetic sensitivity. It is theoretically demonstrated that by using an electromagnetically induced transparent probe beam in a pump-probe atomic magnetometer, it is possible to operate the latter at frequencies much higher than its bandwidth, maintaining a high signal-to-noise ratio.
Physical Review Letters•Dec 6, 2006•26 citations