Resonant scattering of surface-plasmon polariton pulses by nanoscale metal defects |
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| Authors: | Sánchez-Gil José A Maradudin Alexei A |
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| Institution: | Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Científicas, Serrano 121, E-28006 Madrid, Spain. j.sanchez@iem.cfmac.csic.es |
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| Abstract: | We have theoretically investigated the dynamics of the scattering of surface-plasmon polariton (SPP) pulses by single nanoscale metal defects through a rigorous calculation of the time dependence of the reflected and transmitted SPP and of the angular distribution of the scattered light. SPP resonances that occur at deep Gaussian grooves are probed with SPP pulses, the resonant scattering being unequivocally manifested by (a) the exponential tails of the scattered SPP and light pulses and (b) the delay time of the transmitted SPP pulse. |
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