Artoni M, Zavatta A. Large phase-by-phase modulations in atomic interfaces.
PHYSICAL REVIEW LETTERS 2015;
115:113005. [PMID:
26406829 DOI:
10.1103/physrevlett.115.113005]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Indexed: 06/05/2023]
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.
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