| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Left-Handedness with Three Zero-Absorption Windows Tuned by the Incoherent Pumping Field and Inter-Dot Tunnelings in a GaAs/AlGaAs Triple Quantum Dots System |
| ZHAO Shun-Cai1**, ZHANG Shuang-Ying1, WU Qi-Xuan2, JIA Jing1 |
1Physics department, Kunming University of Science and Technology, Kunming 650500
2College of English, Kunming University of Science and Technology, Kunming 650500 |
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| Cite this article: |
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ZHAO Shun-Cai, ZHANG Shuang-Ying, WU Qi-Xuan et al 2015 Chin. Phys. Lett. 32 058104 |
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Abstract Left-handedness with three zero-absorption windows is achieved in a triple-quantum-dot system. With the typical parameters of a GaAs/AlGaAs heterostructure, the simultaneous negative relative electric permittivity and magnetic permeability are obtained by the adjustable incoherent pumping field and two inter-dot tunnelings. Furthermore, three zero-absorption windows in the left-handedness frequency bands are observed. The left-handedness with zero-absorption in the solid state heterostructure may solve the challenges not only in the left-handed materials achieved by the photonic resonant scheme but also in the application of negative refractive materials with a large amount of absorption.
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Received: 13 December 2014
Published: 01 June 2015
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| PACS: |
81.07.Ta
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(Quantum dots)
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03.67.Ac
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(Quantum algorithms, protocols, and simulations)
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73.21.La
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(Quantum dots)
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78.67.Hc
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(Quantum dots)
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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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