Reducing the free-space group velocity of single photons by transverse structuring

D. Giovannini, J. Romero, V. Potoček, G. Ferenczi, F. Speirits, S. M. Barnett, D. Faccio, M. J. Padgett*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The group velocity of light in free space is decreased by controlling the transverse spatial structure of the beam. We present experimental results in the single-photon regime, supported by a simple geometric argument and a full theoretical treatment.

Original languageEnglish
Title of host publicationCLEO: QELS - Fundamental Science, CLEO_QELS 2015
PublisherOSA Publishing
ISBN (Print)978-1-55752-968-8
Publication statusPublished - May 2015
EventCLEO: QELS - Fundamental Science 2015 - San Jose, United States
Duration: 10 May 201515 May 2015


ConferenceCLEO: QELS - Fundamental Science 2015
Abbreviated titleCLEO_QELS 2015
Country/TerritoryUnited States
CitySan Jose

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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