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Frontiers in Optics

Spatial Optical Memory Based on Coherent Population Oscillations

A. Eilam, I. Azuri, A. V. Sharypov, A. D. Wilson‐Gordon

Published Jan 1, 2010• 0 citations
Publisher

Abstract

We show that a system characterized by long-lived coherent population oscillations (CPO), such as a two-level system that decays via a shelving state, can be used to construct a spatial optical memory.
DOI
10.1364/ls.2010.ltub4

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Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text M. Maynard, A. J. F. de Almeida, J. Sales, D. Felinto, J. W. Tabosa, F. Bretenaker, and F. Goldfarb, "Optical memory based on coherent population oscillations," in 12th International Conference on Fiber Optics and Photonics, OSA Technical Digest (online) (Optica Publishing Group, 2014), paper T2A.4. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article

International conference on fiber optics and photonics•Jan 1, 2014•0 citations
We show that a system characterized by long-lived coherent population oscillations (CPOs), such as a two-level system that decays via a shelving state, can be used to construct a spatial optical memory. In the presence of a cw control field, a field is generated at the four-wave mixing (FWM) frequency with the same spatial profile as the initial probe. When the control field is switched off, these spatial profiles are encoded in the CPOs of the ground and storage states. When the control field is switched on again, the probe and FWM fields are retrieved simultaneously with the same spatial profiles as the initial probe.
We report on the storage of light via the phenomenon of coherent population oscillation (CPO) in an atomic cesium vapor at room temperature. In the experiment the optical information of a probe field is stored in the CPO of two ground states of a $\ensuremath{\Lambda}$ three-level system formed by the Zeeman sublevels of the hyperfine transition $F=3\ensuremath{\rightarrow}{F}^{\ensuremath{'}}=2$ of the cesium D2{D}_{2}D2​ line. We show directly that this CPO-based memory is very insensitive to stray magnetic field inhomogeneities and presents a lifetime which is limited mainly by atomic motion. A theoretical simulation of the measured spectra was also developed and is in very good agreement with the experiment.
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text M. Maynard, A. J. F. de Almeida, J. Sales, D. Felinto, J. W. Tabosa, F. Bretenaker, and F. Goldfarb, "Optical memory based on coherent population oscillations," in 12th International Conference on Fiber Optics and Photonics, OSA Technical Digest (online) (Optica Publishing Group, 2014), paper T2A.4. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article