Title :
Reducing the free-space group velocity of single photons by transverse structuring
Author :
Giovannini, D. ; Romero, J. ; Potocek, V. ; Ferenczi, G. ; Speirits, F. ; Barnett, S.M. ; Faccio, D. ; Padgett, M.J.
Author_Institution :
Sch. of Phys. & Astron., Univ. of Glasgow, Glasgow, UK
Abstract :
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.
Keywords :
geometrical optics; free-space group velocity; light group velocity; single-photon regime; transverse spatial structure; transverse structuring; Delays; Feeds; Optical propagation; Optics; Photonics; Velocity measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
