Evaluation of E. M. fields and energy transport in metallic nanoparticles with near field excitation

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McArthur, Duncan and Hourahine, Benjamin and Papoff, Francesco (2014) Evaluation of E. M. fields and energy transport in metallic nanoparticles with near field excitation. Physical Science International Journal, 4 (4). pp. 564-575. (https://doi.org/10.9734/PSIJ/2014/7549)

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Abstract

We compare two ways of calculating the optical response of metallic nanoparticles illuminated by near field dipole sources. We develop tests to determine the accuracy of the calculations of internal and scattered fields of metallic nanoparticles at the boundary of the particles and in the far field. We verify the correct transport of energy by checking that the evaluation of the energy flux agrees at the surface of the particles and in the far field. A new test is introduced to check that the surface fields fulfill Maxwell's equations allowing evaluation of the validity of the internal field. Calculations of the scattering cross section show a faster rate of convergence for the principal mode theory. We show that for metallic particles the internal field is the most significant source of error.

ORCID iDs

McArthur, Duncan ORCID logoORCID: https://orcid.org/0000-0001-8603-8349, Hourahine, Benjamin ORCID logoORCID: https://orcid.org/0000-0002-7667-7101 and Papoff, Francesco ORCID logoORCID: https://orcid.org/0000-0002-3456-343X;
  • Item type:Article
    ID code:46439
    Dates:
    Date
    Event
    May 2014
    Published
    6 January 2014
    Published Online
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:08 Jan 2014 11:46
    Last modified:11 Nov 2024 10:34
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/46439
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