Optics Letters

Influence of detuning on the spontaneous emission of a driven four-level atom embedded in photonic crystals

Xiudong Sun, Xiangqian Jiang

Published Jan 8, 2008• 7 citations

Abstract

We study the spontaneous emission of a four-level atom with two transitions coupled to a reservoir that has a photonic bandgap near the band edge. Moreover, the transition from the upper level to an auxiliary level is driven by a laser. Considering the different detuning of the external driving field, we discuss some effects, such as a laser-induced dark line, a laser-induced line splitting, and a laser-induced pushing of a dressed state out of the bandgap, which originate from the quantum interference effect and control of the external driving field.

DOI: 10.1364/ol.33.000110

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