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
1 Physics department, Kunming University of Science and Technology, Kunming 6505002 College of English, Kunming University of Science and Technology, Kunming 650500
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.
收稿日期: 2014-12-13
出版日期: 2015-06-01
:
81.07.Ta
(Quantum dots)
03.67.Ac
(Quantum algorithms, protocols, and simulations)
73.21.La
(Quantum dots)
78.67.Hc
(Quantum dots)
42.50.Gy
(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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2015, Vol. 32 
