Abstract
The control of spontaneous emission from an radio-frequency (RF)-driven five-level atom embedded in a three-dimensional photonic crystal is investigated by considering the anisotropic double-band photonic-band-gap (PBG) reservoir. It is shown that, due to the coexistence of the PBG and the quantum interference effect induced by the RF-driven field, some interesting features, such as the spectral-line narrowing, the spectral-line enhancement, the spectral-line suppression and the occurrence of a dark line in spontaneous emission, can be realized by adjusting system parameters under the experimentally available parameter conditions. The proposed scheme can be achieved by use of an RF-driven field into hyperfine levels in rubidium atom confined in a photonic crystal. These theoretical investigations may provide more degrees of freedom to vary the spontaneous emission.
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