164 citations · 385 across the 12 of their papers we have counts for
8 papers · 1 filter
Narrow band amplification of light carrying orbital angular momentum
G. C. Borba, S. Barreiro, L. Pruvost +2
We report on the amplification of an optical vortex beam carrying orbital angular momentum via induced narrow Raman gain in an ensemble of cold cesium atoms. A 20\% single-pass Ram…
Storage of orbital angular momenta of light via coherent population oscillation
A. J. F. de Almeida, S. Barreiro, W. S. Martins +3
We report on the storage of Orbital Angular Momentum (OAM) of light via the phenomenon of Coherent Population Oscillation (CPO) in cold cesium atoms. The experiment is performed us…
Experimental characterization of the Gaussian state of squeezed light obtained via single-passage through an atomic vapor
P. Valente, A. Auyuanet, S. Barreiro +2
We show that the description of light in terms of Stokes operators in combination with the assumption of Gaussian statistics results in a dramatic simplification of the experimenta…
Off-axis retrieval of orbital angular momentum of light stored in cold atoms
R. A. de Oliveira, L. Pruvost, P. S. Barbosa +5
We report on the storage of orbital angu- lar momentum (OAM) of light of a Laguerre-Gaussian mode in an ensemble of cold cesium atoms and its re- trieval along an axis different fr…
Polarization squeezing of light by single passage through an atomic vapor
S. Barreiro, P. Valente, H. Failache +1
We have studied relative-intensity fluctuations for a variable set of orthogonal elliptic polarization components of a linearly polarized laser beam traversing a resonant Rb…
Spatial entanglement of paired photons generated in cold atomic ensembles
Clara I. Osorio, Sergio Barreiro, Morgan W. Mitchell +1
Cold atomic ensembles can mediate the generation of entanglement between pairs of photons. Photons with specific directions of propagation are detected, and the entanglement can re…