Spontaneous emission of a two-level atom in photonic crystals

Lingjiang Yao; Jingcui Peng; Hongjian Li; Gaoming Zhang; Zhijian Jian; Renlong Zhou; Feng Lin; Yufeng Xu; Wenhua Li

doi:10.1117/12.523226

12 May 2004 Spontaneous emission of a two-level atom in photonic crystals

Lingjiang Yao, Jingcui Peng, Hongjian Li, Gaoming Zhang, Zhijian Jian, Renlong Zhou, Feng Lin, Yufeng Xu, Wenhua Li

Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.523226
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

We investigate spontaneous emission from a two-level atom embedded in photonic crystals. Due to the photon localization and the quantum interference between the two dressed states, some changes of the radiation field happen, and the energy is transferred among the excited atom, the localized field, the propagating field and the diffusion field. If there is a localized field, it appears quasi-oscillation behaves of the population evolution in the excited level. If there isn't a localized field, it appears no quasi-oscillation. Moreover, there have some steady-state trapped atom populations in the excited level, and the spontaneous emission spectrum near the forbidden gap edge is different from that in the vacuum. All these characteristics depend not only on the relative position of the excited level from the band-edge but also on the photon density of states (or the band-edge smoothing parameter) near the band edge.

Citation Download Citation

Lingjiang Yao, Jingcui Peng, Hongjian Li, Gaoming Zhang, Zhijian Jian, Renlong Zhou, Feng Lin, Yufeng Xu, and Wenhua Li "Spontaneous emission of a two-level atom in photonic crystals", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); https://doi.org/10.1117/12.523226

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