A multiple scattering analysis of the reflectance of a periodic array of sub-wavelength cylinders is presented. The optical properties and their dependence on wavelength, geometrical parameters and cylinder dielectric constant are analytically derived for both s- and p-polarized waves. In absence of Mie resonances and surface (plasmon) modes, and for positive cylinder polarizabilities, the reflectance presents sharp peaks close to the onset of new diffraction modes (Rayleigh frequencies). At the lowest resonance frequency, and in the absence of absorption, the wave is perfectly reflected even for vanishingly small cylinder radii.
Extraordinary optical reflection from sub-wavelength cylinder arrays.
R. Gómez-Medina,M. Laroche,J. Sáenz
Published 2006 in Optics Express
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- Publication year
2006
- Venue
Optics Express
- Publication date
2006-05-01
- Fields of study
Medicine, Physics
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Semantic Scholar, PubMed
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