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Switching of a single propagating plasmon by two quantum dots system

Source: Appl. Phys. Lett. 97, 061110 (2010); doi:10.1063/1.3475769

Published 12 August 2010

KEYWORDS and PACS
Keywords
PACS
  • 42.79.Gn
    Optical waveguides and couplers
  • 73.20.Mf
    Collective excitations (surface/interface states)
  • 73.21.La
    Quantum dots (electron states/collective excitations)
  • YEAR: 2010
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Nam-Chol Kim,1,2 Jian-Bo Li,1 Zhong-Jian Yang,1 Zhong-Hua Hao,1 and Qu-Quan Wang1
1Department of Physics, Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
2Department of Physics and Natural Science Center, Kim Il Sung University, Pyongyang, Democratic People's Republic of Korea

We investigated the scattering property of a single plasmon interacting with two quantum dots coupled to one-dimensional surface plasmonic waveguide. We demonstrated that the transmission of a single plasmon could be switched on or off by adjusting spectral detuning and controlling spatial separation of the two quantum dots. These transport properties of the nanosystem could find the applications in plasmonic nanodevices and quantum information processing. ©2010 American Institute of Physics
History: Received 20 March 2010; accepted 15 July 2010; published 12 August 2010
Permalink: http://link.aip.org/link/?APPLAB/97/061110/1

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