Publications de Thomas Gerd Siegfried

Large-scale sub-100 nm compound plasmonic grating arrays to control the interaction between localized and propagating plasmons

Olivier Martin, Arash Farhang, Thomas Gerd Siegfried

Compound plasmonic resonances arise due to the interaction between discrete and continuous metallic nanostructures. Such combined nanostructures provide a versatility and tunability beyond that of most other metallic nanostructures. In order to observe suc ...

Spie-Soc Photo-Optical Instrumentation Engineers2014

Metal Double Layers with Sub-10 nm Channels

Olivier Martin, Thomas Gerd Siegfried, Li Wang

Double-layer plasmonic nanostructures are fabricated by depositing metal at normal incidence onto various resist masks, forming an antenna layer on top of the resist post and a hole layer on the substrate. Antenna plasmon resonances are found to couple to ...

Amer Chemical Soc2014

Nea-field enhancement in crescent shaped arrays

Olivier Martin, Shourya Dutta Gupta, Thomas Gerd Siegfried

2014

Near-Field Enhancement in Plasmonic Arrays

Thomas Gerd Siegfried

EPFL2014

Plasmonic Radiance: Probing Structure at the Ångström Scale with Visible Light

Olivier Martin, Benjamin Gallinet, Thomas Gerd Siegfried

Plasmonic modes with long radiative lifetimes combine strong nanoscale light confinement with a narrow spectral line width carrying the signature of Fano resonances, making them very promising for nanophotonic applications such as sensing, lasing, and swit ...

American Chemical Society (ACS)2013

Reusable plasmonic substrates fabricated by interference lithography: a platform for systematic sensing studies

Olivier Martin, Thomas Gerd Siegfried

Surface-enhanced Raman scattering (SERS) has become increasingly popular in the scientific and industrial communities because of its analytical capabilities and potential to study fundamentals in plasmonics. Although under certain conditions extremely high ...

Wiley-Blackwell2013

Engineering Metal Adhesion Layers That Do Not Deteriorate Plasmon Resonances

Olivier Martin, Thomas Gerd Siegfried

Adhesion layers, required to stabilize metallic nanostngtures, dramatically deteriorate the performances of plasmonic sensors, by severely damping the plasmon modes. In this article, we show that these detrimental effects critically depend on the overlap o ...

2013

Gap Plasmons and Near-Field Enhancement in Closely Packed Sub-10 nm Gap Resonators

Olivier Martin, Thomas Gerd Siegfried

Pairs of metal nanoparticles with a sub-10 nm gap are an efficient way to achieve extreme near-field enhancement for sensing applications. We demonstrate an attractive alternative based on Fabry-Perot type nanogap resonators, where the resonance is defined ...

Amer Chemical Soc2013

Near-field enhancement in sub-10 nm gap arrays

Olivier Martin, Thomas Gerd Siegfried

2013

Fano coupling from line arrays of crescents

Olivier Martin, Benjamin Gallinet, Thomas Gerd Siegfried

2013