Slow light in flight imaging

Kali Wilson, Bethany Little, Geneviève Gariépy, Robert Henderson, John Howell, Daniele Franco Angelo Faccio

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
65 Downloads (Pure)


Slow-light media are of interest in the context of quantum computing and enhanced measurement of quantum effects, with particular emphasis on using slow-light with single photons. We use light-in-flight imaging with a single photon avalanche diode camera-array to image in situ pulse propagation through a slow light medium consisting of heated rubidium vapour. Light-in-flight imaging of slow light propagation enables direct visualisation of a series of physical effects including simultaneous observation of spatial pulse compression and temporal pulse dispersion. Additionally, the single photon of the camera allows for observation of the group velocity of single photons with measured single-photon fractional delays greater than 1 over 1 cm of propagation.
Original languageEnglish
Article number023830
JournalPhysical Review A
Issue number2
Publication statusPublished - 15 Feb 2017


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