Fano-type interpretation of red shifts and red tails in hole array transmission spectra

By C. Genet, M. P. V. Exter, J. Woerdman. 2003

383 citations recorded by the source corpus.

We present a unifying point of view which allows to understand spectral features reported in recent experiments with two-dimensional arrays of subwavelength holes in metal films. We develop a Fano analysis of the related scattering problem by distinguishing two interfering contributions to the transmission process, namely a non-resonant contribution (direct scattering) and a resonant contribution (surface plasmon excitation). The introduction of a coupling strength between these two contributions naturally induces resonance shifts and asymmetry of profiles which satisfy simple scaling relations. We also report an experiment to confirm this analysis.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Surfaces, Coatings and Films

View Paper: https://www.semanticscholar.org/paper/4f03b699c49e068c808266562917f6746408a17c

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In Atomic and Molecular Physics, and Optics

In Biomedical Engineering

In Surfaces, Coatings and Films

Citations in the corpus

The role of localized surface plasmon modes in the enhanced transmission of periodic subwavelength apertures (2005, background): “The phenomenon of enhanced transmission through subwavelength apertures in optically thick metal films occurs both for hole arrays and single apertures surrounded by periodic corrugations [16–37].”
Fano-resonant metamaterials and their applications (2013, neutral): “The asymmetric shape of the transmission peaks encouraged the attribution of the EOT to Fano-type interference [71, 72] between broad feature-less transmission through the holes and narrowband excitation of the “dark” SPPs by the periodic structure.”
Coupling Bright and Dark Plasmonic Lattice Resonances (2011, background): “[25] C.”
Light passing through subwavelength apertures (2010, background): “An alternative derivation Genet et al., 2003 closely followed the original one by Fano 1961 .”
Plasmonic photon sorters for spectral and polarimetric imaging (2008, methodology): “The peak is normally redshifted compared with the values predicted by equation (1) as a result of Fano-type interactio”
Collective resonances in plasmonic crystals: Size matters (2012, methodology): “y condition, and the background transmission. Although Fano described quantum interference phenomena, his model has found broad applicability to classical systems also, and particularly in plasmonics [24, 25]. We have tted the extinction eciency spectra for each array with a Fano equation of the for”