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Absorption Spectra of a Three-Level Atom Embedded in a PBG Reservoir |
| ZHANG Han;ZHANG Ke;ZHANG Han-Zhuang |
| College of Physics, Jilin University, Changchun 130023 |
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| Cite this article: |
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ZHANG Han, ZHANG Ke, ZHANG Han-Zhuang 2007 Chin. Phys. Lett. 24 937-940 |
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Abstract We introduce the `decay rate' terms into the density matrix equations of an atom embedded in a photonic band gap (PBG) reservoir successfully. By utilizing the master equations, the probe absorption spectra and the refractivity properties of a three-level atom in the PBG reservoir are obtained. The interaction between the atom and the PBG reservoir as well as the effects of the quantum interference on the absorption of the atom has also been taken into account. It is interesting that two different types of the anomalous dispersion relations of refractivity are exhibited in one dispersion line. The methodology used here can be applied to theoretical investigation of quantum interference effects of other atomic models embedded in a PBG reservoir.
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| Keywords:
42.50.Gy
42.50.Ct
42.70.Qs
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Received: 12 January 2007
Published: 26 March 2007
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| PACS: |
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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42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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42.70.Qs
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(Photonic bandgap materials)
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