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Controlling Single-Photon Transport along an Optical Waveguide by using a Three-Level Atom |
| TIAN Wei1, CHEN Bin2**, XU Wei-Dong3 |
1Business School, University of Shanghai for Science and Technology, Shanghai 200093
2Tin Ka-Ping College of Science, University of Shanghai for Science and Technology, Shanghai 200093
3School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093
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| Cite this article: |
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XU Wei-Dong, TIAN Wei, CHEN Bin 2012 Chin. Phys. Lett. 29 030302 |
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Abstract We theoretically investigate the single-photon transport properties in an optical waveguide embedded with a V-type three-level atom (VTLA) based on symmetric and asymmetric couplings between the photon and the VTLA. Our numerical results show that the transmission spectrum of the incident photon can be well controlled by virtue of both symmetric and asymmetric coupling interactions. A multifrequency photon attenuator is realized by controlling the asymmetric coupling interactions. Furthermore, the influences of dissipation of the VTLA for the realistic physical system on single-photon transport properties are also analyzed.
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| Keywords:
03.65.Nk
32.80.-t
42.50.Ct
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Received: 07 November 2011
Published: 11 March 2012
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| PACS: |
03.65.Nk
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(Scattering theory)
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32.80.-t
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(Photoionization and excitation)
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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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