Atom Interferometry with Coherent Enhancement of Bragg Pulse Sequences
A. Béguin, Tangui Rodzinka, L. Calmels, Baptiste Allard, A. Gauguet
Abstract
We report here on the realization of light-pulse atom interferometers with large-momentum-transfer atom optics based on a sequence of Bragg transitions. We demonstrate momentum splitting up to 200 photon recoils in an ultracold atom interferometer. We highlight a new mechanism of destructive interference of the losses leading to a sizable efficiency enhancement of the beam splitters. We perform a comprehensive study of parasitic interferometers due to the inherent multiport feature of the quasi-Bragg pulses. Finally, we experimentally verify the phase shift enhancement and characterize the interferometer visibility loss.
Topics & Concepts
Atom interferometerAstronomical interferometerInterferometryPhysicsOpticsInterference (communication)Beam splitterPhotonAtom (system on chip)VisibilityPulse (music)Momentum transferUltracold atomQuantum opticsLaserQuantumDetectorQuantum mechanicsChannel (broadcasting)ScatteringTelecommunicationsComputer scienceEmbedded systemCold Atom Physics and Bose-Einstein CondensatesAtomic and Subatomic Physics ResearchAdvanced Frequency and Time Standards