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6 May 2013 Two-atom system as a directional frequency filter
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In a recent experiment Shegai et al.1 have shown that a bimetallic particle dimer composed of gold and silver atoms may work as a directional frequency filter which scatters light of different frequencies in different directions. A phase difference between emitters required for the directional scattering of light was determined by the complex particle polarizabilities and therefore varies with the size, shape and material composition of the particles in accordance with their plasmon resonance characteristics. In this paper, we give a theoretical explanation of the experimental results in terms of interference between light fields emitted by nonidentical radiators.
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Vassilis E. Lembessis, Anwar Al Rsheed, Omar M. Aldossary, and Zbigniew Ficek "Two-atom system as a directional frequency filter", Proc. SPIE 8773, Photon Counting Applications IV; and Quantum Optics and Quantum Information Transfer and Processing, 877310 (6 May 2013);

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