Large Phase-by-Phase Modulations in Atomic Interfaces

Year: 2015

Authors: Artoni M., Zavatta A.

Autors Affiliation: European Laboratory for Nonlinear Spectroscopy (LENS), I-50019 Sesto Fiorentino, Firenze, Italy
Istituto Nazionale di Ottica (INO-CNR), I-50125 Firenze, Italy
Department of Engineering and Information Technology, Brescia University, I-25133 Brescia, Italy

Abstract: Phase-resonant closed-loop optical transitions can be engineered to achieve broadly tunable light phase shifts. Such a novel phase-by-phase control mechanism does not require a cavity and is illustrated here for an atomic interface where a classical light pulse undergoes radian level phase modulations all-optically controllable over a few micron scale. It works even at low intensities and hence may be relevant to new applications of all-optical weak-light signal processing.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 115 (11)      Pages from: 113005-1  to: 113005-5

More Information: This work was partially supported by European Union under the CHIST-ERA project QSCALE (Quantum Technologies for Extending the Range of Quantum Communications) and by the Italian Ministry of Education, University and Research under \”X-Nano\” project (Grant No. DM45975).
KeyWords: Light; Modulation; Phase modulation; Phase shift; Signal processing, All optical; Closed loops; Light pulse; Low-intensity; Micron scale; New applications; Weak lights, Phase interfaces
DOI: 10.1103/PhysRevLett.115.113005

Citations: 10
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