Ramsey fringes

Ramsey fringes

[′ram·zē ‚frin·jəz]
(physics)
Oscillations in the number of transitions in a molecular beam that passes through two separated radio-frequency fields, as a function of L/v, where L is the separation of the field and v is the speed of the beam.
References in periodicals archive ?
Due to the large number of Ramsey fringes, there is an uncertainty in identifying the central fringe on the magnetically sensitive transitions.
Stepping the synthesizer frequency between measurement cycles produces a set of Ramsey fringes. A digital servo locks the average synthesizer frequency to the central fringe.
This technique relies on the fact that the shift in the Rabi pedestal part of the line shape is large compared to the shift in the Ramsey fringe part of the line shape.