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Matterwave interferometric velocimetry of cold Rb atoms

Matterwave interferometric velocimetry of cold Rb atoms
Matterwave interferometric velocimetry of cold Rb atoms
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.
0950-0340
657-666
Carey, Max
9d637a1b-e432-4401-968a-5e6da40435ff
Belal, Mohammad
33550de9-0df1-4c90-bae6-3eb65c62778a
Himsworth, Matthew
24e9b896-b4d3-40f7-8047-82a38efa4898
Bateman, James
51205cc6-e9ac-44bf-aa7a-2c8dbc445215
Freegarde, Timothy
01a5f53b-d406-44fb-a166-d8da9128ea7d
Carey, Max
9d637a1b-e432-4401-968a-5e6da40435ff
Belal, Mohammad
33550de9-0df1-4c90-bae6-3eb65c62778a
Himsworth, Matthew
24e9b896-b4d3-40f7-8047-82a38efa4898
Bateman, James
51205cc6-e9ac-44bf-aa7a-2c8dbc445215
Freegarde, Timothy
01a5f53b-d406-44fb-a166-d8da9128ea7d

Carey, Max, Belal, Mohammad, Himsworth, Matthew, Bateman, James and Freegarde, Timothy (2018) Matterwave interferometric velocimetry of cold Rb atoms. Journal of Modern Optics, 65 (5-6), 657-666. (doi:10.1080/09500340.2017.1397222).

Record type: Article

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.

Text Matterwave interferometric velocimetry of cold Rb atoms - Accepted Manuscript
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More information

Accepted/In Press date: 3 November 2017
e-pub ahead of print date: 17 November 2017
Published date: 23 February 2018
Additional Information: Special Issue - Quantum optics, Cooling and Collisions of Ions and Atoms

Identifiers

Local EPrints ID: 415616
URI: https://eprints.soton.ac.uk/id/eprint/415616
ISSN: 0950-0340
PURE UUID: f2809346-d45a-43c1-897c-b8e99e7a2073
ORCID for Mohammad Belal: ORCID iD orcid.org/0000-0001-5175-3158
ORCID for Timothy Freegarde: ORCID iD orcid.org/0000-0002-0680-1330

Catalogue record

Date deposited: 16 Nov 2017 17:30
Last modified: 08 Aug 2018 00:33

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