Fig. 4From: Rydberg-Stark deceleration of atoms and moleculesCoupling Rydberg atoms to microwave circuits. a Photograph of a coplanar microwave waveguide with the position of a sample of Rydberg atoms, when probed by a pulsed microwave field propagating along the transmission line, indicated schematically by the red shaded region. b-c Rabi oscillations observed in an ensemble of Rydberg atoms coupled to the microwave field surrounding the waveguide for microwave powers of 4 μW and 10 μW at the source. d-e Fourier transforms of (b) and (c). From [39]Back to article page