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arXiv · 1708.06635

Interparticle Coupling Effects of Two Quantum Dots System on the Transport Properties of a Single Plasmon

Nam-Chol Kim·Myong-Chol Ko·Song-Il Choe·Chol-Jong Jang·Gwang-Jin Kim·Zhong-Hua Hao·Jian-Bo Li·Qu-Quan Wang
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Abstract

Transport properties of a single plasmon interacting with two quantum dots (QDs) system coupled to one-dimensional surface plasmonic waveguide are investigated theoretically via the real-space approach. We mainly focus on the coupling effects of the two QDs on the transmission properties of a single incident plasmon. We demonstrated that switching of a single plasmon can be achieved by controlling the interparticle distance, the interparticle coupling strength, and the QD-waveguide coupling strength, as well as spectral detuning. We also showed that the coupling between the continuum excitations and the discrete excitations results in the Fano-type transmission spectrum. The transport properties of a single plasmon interacting with such a two direct coupled QDs system could find the applications in the design of plasmonic nanodevices, such as single photon switching and nanomirrors, and in quantum information processing.

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Nam-Chol Kim, Myong-Chol Ko, Song-Il Choe, Chol-Jong Jang, Gwang-Jin Kim, Zhong-Hua Hao, Jian-Bo Li, Qu-Quan Wang. 2017-08-21. Interparticle Coupling Effects of Two Quantum Dots System on the Transport Properties of a Single Plasmon. https://arxiv.org/abs/1708.06635

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