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Precision atomic gravimeter based on Bragg diffraction

Altin, Paul; Johnsson, Mattias; Negnevitsky, V; Dennis, Graham; Anderson, R P; Debs, John; Szigeti, Stuart; Bennetts, Shayne; McDonald, Gordon; Close, John; Robins, Nicholas


We present a precision gravimeter based on coherent Bragg diffraction of freely falling cold atoms. Traditionally, atomic gravimeters have used stimulated Raman transitions to separate clouds in momentum space by driving transitions between two internal atomic states. Bragg interferometers utilize only a single internal state, and can therefore be less susceptible to environmental perturbations. Here we show that atoms extracted from a magneto-optical trap using an accelerating optical lattice...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: New Journal of Physics
DOI: 10.1088/1367-2630/15/2/023009
Access Rights: Open Access


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