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Matterwave interferometric velocimetry of cold Rb atoms / Max Carey; Mohammad Belal; Matthew Himsworth; James Bateman; Tim Freegarde

Journal of Modern Optics, Pages: 1 - 10

Swansea University Author: James, Bateman

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Abstract

We consider the matterwave interferometric measurement of atomic velocities, which forms a building block for all matterwave inertial measurements. A theoretical analysis, addressing both the laboratory and atomic frames and accounting for residual Doppler sensitivity in the beamsplitter and recombi...

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Published in: Journal of Modern Optics
ISSN: 0950-0340 1362-3044
Published: 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa36825
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Abstract: We consider the matterwave interferometric measurement of atomic velocities, which forms a building block for all matterwave inertial measurements. A theoretical analysis, addressing both the laboratory and atomic frames and accounting for residual Doppler sensitivity in the beamsplitter and recombiner pulses, is followed by an experimental demonstration, with measurements of the velocity distribution within a 20 μK cloud of rubidium atoms. Our experiments use Raman transitions between the long-lived ground hyperfine states, and allow quadrature measurements that yield the full complex interferometer signal and hence discriminate between positive and negative velocities. The technique is most suitable for measurement of colder samples.
Item Description: This is an Open Access article distributed under the terms of the Creative Commons Attribution License.
College: College of Science
Start Page: 1
End Page: 10