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

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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.
Original languageEnglish
Title of host publicationProceedings Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
EditorsSelim M. Shahriar, Jacob Scheuer
Place of PublicationBellingham, WA
Pages1129609
Number of pages6
Volume11296
ISBN (Electronic)9781510633568
DOIs
Publication statusPublished - 25 Feb 2020
EventSPIE Photonics West 2020 - Moscone Center, San Francisco, United States
Duration: 1 Feb 20206 Feb 2020
https://spie.org/conferences-and-exhibitions/photonics-west?SSO=1

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume11296
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSPIE Photonics West 2020
CountryUnited States
CitySan Francisco
Period1/02/206/02/20
Internet address

Keywords

  • coherent population trapping
  • grating magneto-optical trap
  • microwave atomic clock
  • cold-atoms
  • micro-fabricated grating chips

Datasets

Cite this

Elvin, R., Hoth, G. W., Wright, M., Lewis, B., Bregazzi, A., Keliehor, B., Arnold, A. S., Griffin, P. F., & Riis, E. (2020). Progress of a compact microwave clock based on atoms cooled with a diffractive optic. In S. M. Shahriar, & J. Scheuer (Eds.), Proceedings Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II (Vol. 11296, pp. 1129609 ). (Proceedings of SPIE; Vol. 11296).. https://doi.org/10.1117/12.2552587