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Proceedings Paper

Progress of a compact microwave clock based on atoms cooled with a diffractive optic
Author(s): Rachel Elvin; Gregory W. Hoth; Michael Wright; Ben Lewis; Alan Bregazzi; Brendan Keliehor; Aidan S. Arnold; Paul F. Griffin; Erling Riis
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Paper Abstract

An atomic clock based on a compact source of cold atoms and coherent population trapping (CPT) is an encouraging goal for future low-volume atomic frequency references. Our experiment seeks to investigate the performance of such a system by applying CPT in a high-contrast lin⊥lin polarisation scheme to our 87Rb grating magneto optical trap (GMOT) apparatus. In this paper, we report on our progress of improving short- term stability of our cold-atom CPT apparatus. Our recent measurements have shown a short-term stability of 5 x 10-11/√τ, with the ability to average down for times τ>100s.

Paper Details

Date Published: 25 February 2020
PDF: 6 pages
Proc. SPIE 11296, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II, 1129609 (25 February 2020); doi: 10.1117/12.2552587
Show Author Affiliations
Rachel Elvin, Univ. of Strathclyde (United Kingdom)
Gregory W. Hoth, Univ. of Strathclyde (United Kingdom)
Michael Wright, Univ. of Strathclyde (United Kingdom)
Ben Lewis, Univ. of Strathclyde (United Kingdom)
Alan Bregazzi, Univ. of Strathclyde (United Kingdom)
Brendan Keliehor, Univ. of Strathclyde (United Kingdom)
Aidan S. Arnold, Univ. of Strathclyde (United Kingdom)
Paul F. Griffin, Univ. of Strathclyde (United Kingdom)
Erling Riis, Univ. of Strathclyde (United Kingdom)

Published in SPIE Proceedings Vol. 11296:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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