Progress of a compact microwave clock based on atoms cooled with a diffractive optic

Elvin, Rachel and Hoth, Gregory W. and Wright, Michael and Lewis, Ben and Bregazzi, Alan and Keliehor, Brendan and Arnold, Aidan S. and Griffin, Paul F. and Riis, Erling; Shahriar, Selim M. and Scheuer, Jacob, eds. (2020) Progress of a compact microwave clock based on atoms cooled with a diffractive optic. In: Proceedings Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II. Proceedings of SPIE, 11296 . SPIE, USA, p. 1129609. ISBN 9781510633568

Full text not available in this repository.Request a copy from the Strathclyde author

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.