6533b86ffe1ef96bd12ce635

RESEARCH PRODUCT

Alkali-vapor magnetic resonance driven by fictitious radiofrequency fields

Arne WickenbrockDmitry BudkerDmitry BudkerDmitry BudkerBrian PattonBrian PattonE. Zhivun

subject

PhysicsPhysics and Astronomy (miscellaneous)Magnetic energyNeutron magnetic momentCondensed matter physicsMagnetometerElectron magnetic dipole momentMagnetic fieldComputational physicslaw.inventionDipolelawSpin echoPhysics::Atomic PhysicsMagnetic dipole

description

We demonstrate an all-optical 133Cs scalar magnetometer, operating in nonzero magnetic field, in which the magnetic resonance is driven by an effective oscillating magnetic field provided by the AC Stark shift of an intensity-modulated laser beam. We achieve a projected shot-noise-limited sensitivity of 1.7fT/Hz and measure a technical noise floor of 40fT/Hz. These results are essentially identical to a coil-driven scalar magnetometer using the same setup. This all-optical scheme offers advantages over traditional coil-driven magnetometers for use in arrays and in magnetically sensitive fundamental physics experiments, e.g., searches for a permanent electric dipole moment of the neutron.

yearjournalcountryeditionlanguage
2014-11-10Applied Physics Letters
https://doi.org/10.1063/1.4902028