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Optical control of scattering, absorption and lineshape in nanoparticles

Hourahine, Benjamin and Papoff, Francesco (2013) Optical control of scattering, absorption and lineshape in nanoparticles. Optics Express, 21 (17). pp. 20322-20333. ISSN 1094-4087

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Abstract

We find exact conditions for the enhancement or suppression of internal and/or scattered fields in any smooth particle and the determination of their spatial distribution or angular momentum through the combination of simple fields. The incident fields can be generated by a single monochromatic or broad band light source, or by several sources, which may also be impurities embedded in the nanoparticle. We can design the lineshape of a particle introducing very narrow features in its spectral response.