| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bozhevolnyi, Sergey I.
University of Southern Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (35/35 displayed)
- 2022Extremely confined gap plasmon modescitations
- 2022Extremely confined gap plasmon modes:when nonlocality matterscitations
- 2021Anisotropic second-harmonic generation from monocrystalline gold flakescitations
- 2021Anisotropic second-harmonic generation from monocrystalline gold flakescitations
- 2019Excitation of hybrid plasmonic waveguide modes by colloidal quantum dotscitations
- 2019Plasmonic color printing based on third-order gap surface plasmonscitations
- 2018Ultra-thin titanium nitride films for refractory spectral selectivity [Invited]citations
- 2018Ultra-thin titanium nitride films for refractory spectral selectivitycitations
- 2018Flexible long-range surface plasmon polariton single-mode waveguide for optical interconnectscitations
- 2017Near- and far field spectroscopy of semi-continuous gold films with optically induced anisotropy.
- 2017Near- and far field spectroscopy of semi-continuous gold films with optically induced anisotropy.
- 2017Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold
- 2017Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold
- 2016Electron energy-loss spectroscopy of branched gap plasmon resonatorscitations
- 2016Challenges of fabricating plasmonic and photonic structures with Neon ion beam milling
- 2011Field enhancement and extraordinary optical transmission by tapered periodic slits in gold filmscitations
- 2011Localized field enhancements in two-dimensional V-groove metal arrayscitations
- 2010Demonstration of scattering supression in retardation-based plasmonic nanoantennascitations
- 2010Investigations of scattering and field enhancement effects in retardation-based plasmonic nanoantennas
- 2009Plasmonic candle: towards efficient nanofocusing with channel plasmon polaritonscitations
- 2006Vectorial modeling of near-field imaging with uncoated fiber probescitations
- 2006Directional couplers using long-range surface plasmon polariton waveguidescitations
- 2005Propagation of long-range surface plasmon polaritons in photonic crystalscitations
- 2005Integrated optical components utilizing long-range surface plasmon polaritons
- 2005Propagation of long-range surface plasmon polaritons in photonic band gap structures
- 2004Surface plasmon polariton scattering by a small particle placed near a metal surface: An analytical studycitations
- 2003Surface plasmon polariton waveguiding in random surface nanostructurescitations
- 2003Vectorial model for multiple scattering by surface nanoparticles via surface polariton-to-polariton interactionscitations
- 2003Experimental studies of surface plasmon polariton band gap effectcitations
- 2001Bend loss in surface plasmon polariton band-gap structurescitations
- 2001Waveguiding in Surface Plasmon Polariton Band Gap Structurescitations
- 2001Surface plasmon polariton propagation along a 90° bent line defect in a periodically corrugated metal surfacecitations
- 2001Observation of Propagation of Surface Plasmon Polaritons along Line Defects in a Periodically Corrugated Metal Surfacecitations
- 2001Multiple-Scattering Dipole Approach to Modeling of Surface Plasmon Polariton Band Gap Structurescitations
- 2001Reflection Second-Harmonic Microscopy of Individual Semiconductor Microstructurescitations
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article
Field enhancement and extraordinary optical transmission by tapered periodic slits in gold films
Abstract
We investigate field enhancements by one-dimensional periodic arrays of tapered slits fabricated to a high quality (nm precision) using focused ion beam milling in a 180 nm-thick gold film. Tapering of periodic slits in metal was recently shown to boost the extraordinary optical transmission (EOT) exhibited by similar, but non-tapered, plasmonic structures. Here, both simulated and experimental reflection spectra, along with high-resolution two-photon luminescence (TPL) scanning optical images and simulated electric field plots of the metal slits, are compared, revealing good correspondence between spectral dependences and field intensity enhancements (FEs) estimated via the local TPL. Experimentally investigated structures had a fixed taper angle α=20.5° for two different widths, w=80 and 130 nm, having gaps g=25 and 65 nm, respectively, both fabricated at two different periods, Λ=500 and 700 nm. We attributed the obtained FE reaching ~110 to nanofocusing and resonant interference of counter-propagating plasmons by the periodic tapered gaps. As both simulated and experimentally achieved FEs depend on taper angle, gold film thickness, period and gap of the slit arrays, the resonances can actually be tuned in the wavelength range from visible to infrared, making this configuration promising for a wide range of practical applications, e.g. within surface-enhanced spectroscopies.