Journal
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM
Volume 529, Issue -, Pages 59-63Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0166-1280(00)00532-7
Keywords
electrodynamics; nanoparticle; biosensor; effective medium approximation; extinction spectrum
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This article describes recent advances in electrodynamics theory that are being used to describe the extinction spectra of noble metal nanoparticles and of aggregates of nanoparticles. In one application we have extended the finite element discrete dipole approximation theory to the description of nonspherical metal particles, including the substrate on which they are sitting. In another application, we have developed a new dynamic effective medium approximation for the description of aggregates of spherical gold nanoparticles that are linked using DNA. (C) 2000 Elsevier Science B.V. All rights reserved.
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