A Ramsey interrogation scheme was used to measure the phase shift of laser-cooled Rb clocktransition pseudospins arising as a result of a reversal of a bias magnetic field, i.e., B → −B, during the interrogation. While no phase shift occurred when the reversal was sudden, the Ramsey fringes were shifted by a factor of π when the reversal was adiabatic. We thus verified the prediction that the s...

A technique for contactless electromagnetic interrogation of quartz resonator sensors is proposed and validated. The technique is based on the separation in time of the excitation and detection phases, exploiting the sensing of the transient response of the resonator. Contactless operation is achieved by means of electromagnetic coupling between spiral planar coils connected to the interrogatio...

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