Research Highlights
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Optical response of cylindrical multilayers in the context of hydrodynamic convection-diffusion model |
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| In this work, we generalize the cascading scattering matrix algorithm for calculating the optical response of concentric multilayered structures comprised of either plasmonic metal or dielectric, within the framework of hydrodynamic convection-diffusion model of electrodynamics... |
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Modeling large nonuniform optical antenna arrays for metasurface application |
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| We analyze large non-uniform optical antenna arrays of nanorods, which form optical vortices, axicons and lenses, by using a numerically efficient technique, called the Characteristics Basis Function Method (CBFM). The efficiency is realized by deriving an accurate, efficient simplified representation of nanorod, and by using the CBFM, which not only reduces the number of unknowns significantly without sacrificing the computational accuracy, but also enables us to handle large, truncated and non-uniform arrays ... |
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Optical response in subnanometer gaps due to nonlocal response and quantum tunneling |
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| In this work, we derive the optical response of nanowire dimers with subnanometer gap sizes using different models, viz., the classical, quantum-corrected, nonlocal, and quantum-corrected nonlocal models. Our results indicate that both the quantum tunneling and the nonlocal response should be considered for the gap sizes less than 0.5 nm ... |