| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Spontaneous emission from Λ-type three-level atom driven by bichromatic field in anisotropic double-band photonic crystals |
| Kai Ling(凌凯)1, Li Jiang(姜丽)1,†, Ren-Gang Wan(万仁刚)2,‡, and Zhi-Hai Yao(姚治海)1 |
1 Changchun University of Science and Technology, Changchun 130000, China;
2 School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China |
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Abstract The spontaneous emission property of Λ-type three-level atom driven by the bichromatic field in the anisotropic double-band photonic crystal is calculated by n-times iteration method. The influence of different parameters on atomic spontaneous emission is studied, and the phenomena of atomic spontaneous emission are explained in the dressed state representation. It is found that the spontaneous emission spectra of the atom driven by the bichromatic field presents a multi-peak comb structure. The position of the emission peak is determined by the initial state of the atom, and the interval between the neighboring emission peaks is the detuning δ of the bichromatic field. When the ratio between Rabi frequency intensity and the detuning δ of the bichromatic field remains unchanged, the intensity of each emitted peak remains invariant. The spontaneously emitted peak can be annihilated in the band gap and enhanced near the band edge in the anisotropic photonic crystals. Meanwhile, we also observe the fluorescence quenching phenomenon in the spontaneous emission spectra. The research in this paper provides the theoretical guidance for the control of atomic spontaneous emission.
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Received: 30 August 2022
Revised: 15 November 2022
Accepted manuscript online: 17 November 2022
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PACS:
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42.70.Qs
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(Photonic bandgap materials)
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32.80.Qk
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(Coherent control of atomic interactions with photons)
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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| Fund: Project supported by the Natural Science Foundation of Jilin Province of China (Grant No. 20220101031JC). |
Corresponding Authors:
Li Jiang, Ren-Gang Wan
E-mail: jiangli@cust.edu.cn;wrg@snnu.edu.cn
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Cite this article:
Kai Ling(凌凯), Li Jiang(姜丽), Ren-Gang Wan(万仁刚), and Zhi-Hai Yao(姚治海) Spontaneous emission from Λ-type three-level atom driven by bichromatic field in anisotropic double-band photonic crystals 2023 Chin. Phys. B 32 044211
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