113 citations · 208 across the 7 of their papers we have counts for
7 papers
Measurement of the Kerr nonlinear refractive index of Cs vapor
Michelle O. Araújo, Hugo L. D. de S. Cavalcante, Marcos Oriá +4
Atomic vapors are systems well suited for nonlinear optics studies but very few direct measurements of their nonlinear refractive index have been reported. Here we use the z-scan t…
Quantum Memories via Electromagnetically Induced Transparency in Three-Level Systems
F. Revson Fernandes Pereira, Danieverton Moretti, Elloá B. Guedes
This work aims at analyzing the adequacy of Laguerre-Gauss (LG) beams and three-level quantum systems to build quantum memories. We focus on such systems in which there is a phenom…
Delayed four- and six-wave mixing in a coherently prepared atomic ensemble
D. Felinto, D. Moretti, R. A. de Oliveira +1
We report on the simultaneous observation, by delayed Bragg diffraction, of four- and six-wave mixing processes in a coherently prepared atomic ensemble consisting of cold cesium a…
Pulse pair generation from coherently prepared atomic ensembles
D. Moretti, D. Felinto, J. W. R. Tabosa
We report a detailed investigation on the generation of pulse pairs during the readout of a coherence grating stored in a cold atomic ensemble. The pulse shapes and the split of th…
Dynamics of a stored Zeeman coherence grating in an external magnetic field
D. Moretti, D. Felinto, J. W. R. Tabosa +1
We investigate the evolution of a Zeeman coherence grating induced in a cold atomic cesium sample in the presence of an external magnetic field. The gratings are created in a three…
Collapses and revivals of stored orbital angular momentum of light in a cold atomic ensemble
D. Moretti, D. Felinto, J. W. R. Tabosa
We report on the storage of orbital angular momentum of light in a cold ensemble of cesium atoms. We employ Bragg diffraction to retrieve the stored optical information impressed i…