Collective Lamb shift of a nanoscale atomic vapor layer within a sapphire cavity

Peyrot, Tom; Keaveney, James; Sortais, Yvan R.P.; Sargsyan, Armen; Sarkisyan, David; Hughes, Ifan G.; Browaeys, Antoine; Adams, Charles S.

doi:10.1103/physrevlett.120.243401

Collective Lamb shift of a nanoscale atomic vapor layer within a sapphire cavity

Peyrot, Tom; Keaveney, James; Sortais, Yvan R.P.; Sargsyan, Armen; Sarkisyan, David; Hughes, Ifan G.; Browaeys, Antoine; Adams, Charles S.

Authors

Tom Peyrot

James Keaveney

Yvan R.P. Sortais

Armen Sargsyan

David Sarkisyan

Professor Ifan Hughes i.g.hughes@durham.ac.uk
Professor

Antoine Browaeys

Professor Stuart Adams c.s.adams@durham.ac.uk
Professor

Abstract

We measure the near-resonant transmission of light through a dense medium of potassium vapor confined in a cell with nanometer thickness in order to investigate the origin and validity of the collective Lamb shift. A complete model including the multiple reflections in the nanocell reproduces accurately the observed line shape. It allows the extraction of a density-dependent shift and width of the bulk atomic medium resonance, deconvolved from the cavity effect. We observe an additional, unexpected dependence of the shift with the thickness of the medium. This extra dependence demands further experimental and theoretical investigations.

Citation

Peyrot, T., Keaveney, J., Sortais, Y. R., Sargsyan, A., Sarkisyan, D., Hughes, I. G., …Adams, C. S. (2018). Collective Lamb shift of a nanoscale atomic vapor layer within a sapphire cavity. Physical Review Letters, 120(24), Article 243401. https://doi.org/10.1103/physrevlett.120.243401

Journal Article Type	Article
Acceptance Date	May 10, 2018
Online Publication Date	Jun 12, 2018
Publication Date	Jun 12, 2018
Deposit Date	May 17, 2018
Publicly Available Date	Jun 15, 2018
Journal	Physical Review Letters
Print ISSN	0031-9007
Electronic ISSN	1079-7114
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	120
Issue	24
Article Number	243401
DOI	https://doi.org/10.1103/physrevlett.120.243401

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