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

Rachel Elvin; Gregory W. Hoth; Michael Wright; Ben Lewis; Alan Bregazzi; Brendan Keliehor; Aidan S. Arnold; Paul F. Griffin; Erling Riis

doi:10.1117/12.2552587

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

Rachel Elvin, Gregory W. Hoth, Michael Wright, Ben Lewis, Alan Bregazzi, Brendan Keliehor, Aidan S. Arnold, Paul F. Griffin, Erling Riis

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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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 language	English
Title of host publication	Proceedings Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
Editors	Selim M. Shahriar, Jacob Scheuer
Place of Publication	Bellingham, WA
Pages	1129609
Number of pages	6
Volume	11296
ISBN (Electronic)	9781510633568
DOIs	https://doi.org/10.1117/12.2552587
Publication status	Published - 25 Feb 2020
Event	SPIE Photonics West 2020 - Moscone Center, San Francisco, United States Duration: 1 Feb 2020 → 6 Feb 2020 https://spie.org/conferences-and-exhibitions/photonics-west?SSO=1

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	11296
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	SPIE Photonics West 2020
Country/Territory	United States
City	San Francisco
Period	1/02/20 → 6/02/20
Internet address	https://spie.org/conferences-and-exhibitions/photonics-west?SSO=1

Keywords

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

Access to Document

10.1117/12.2552587

Elvin-etal-SPIE-PW-2020-Progress-of-a-compact-microwave-clock-based-on-atoms-cooled
Copyright © 2020 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Final published version, 5.05 MBLicence: All rights reserved

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

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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.",

keywords = "coherent population trapping, grating magneto-optical trap, microwave atomic clock, cold-atoms, micro-fabricated grating chips",

author = "Rachel Elvin and Hoth, {Gregory W.} and Michael Wright and Ben Lewis and Alan Bregazzi and Brendan Keliehor and Arnold, {Aidan S.} and Griffin, {Paul F.} and Erling Riis",

note = "Copyright 2020 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.; SPIE Photonics West 2020 ; Conference date: 01-02-2020 Through 06-02-2020",

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Elvin, R, Hoth, GW, Wright, M, Lewis, B, Bregazzi, A, Keliehor, B, Arnold, AS , Griffin, PF & Riis, E 2020, Progress of a compact microwave clock based on atoms cooled with a diffractive optic. in SM Shahriar & J Scheuer (eds), Proceedings Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II. vol. 11296, Proceedings of SPIE, vol. 11296, Bellingham, WA, pp. 1129609 , SPIE Photonics West 2020, San Francisco, California, United States, 1/02/20. https://doi.org/10.1117/12.2552587

Progress of a compact microwave clock based on atoms cooled with a diffractive optic. / Elvin, Rachel; Hoth, Gregory W.; Wright, Michael et al.
Proceedings Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II. ed. / Selim M. Shahriar; Jacob Scheuer. Vol. 11296 Bellingham, WA, 2020. p. 1129609 (Proceedings of SPIE; Vol. 11296).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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

Abstract

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Keywords

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Data for conference proceeding: "Progress of a compact microwave clock based on atoms cooled with a diffractive optic"

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

Abstract

Publication series

Conference

Keywords

Access to Document

Other files and links

Fingerprint

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Data for conference proceeding: "Progress of a compact microwave clock based on atoms cooled with a diffractive optic"

Cite this