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Doubly resonant optical nanoantenna arrays for polarization resolved measurements of surface-enhanced Raman scattering
J. Petschulat, D. Cialla, N. Janunts +9
We report that rhomb-shaped metal nanoantenna arrays support multiple plasmonic resonances, making them favorable bio-sensing substrates. Besides the two localized plasmonic dipole…
Multipole nonlinearity of metamaterials
Joerg Petschulat, Christoph Menzel, Arkadi Chipouline +4
We report on the linear and nonlinear optical response of metamaterials evoked by first and second order multipoles. The analytical ground on which our approach bases permits for n…
Validity of effective material parameters for optical fishnet metamaterials
Christoph Menzel, Thomas Paul, Carsten Rockstuhl +3
Although optical metamaterials that show artificial magnetism are mesoscopic systems, they are frequently described in terms of effective material parameters. But due to intrinsic…
Inhibition of light tunneling in waveguide arrays
A. Szameit, Y. V. Kartashov, F. Dreisow +7
We report the observation of almost perfect light tunneling inhibition at the edge and inside laser-written waveguide arrays due to band collapse. When the refractive index of the…
Observation of two-dimensional defect surface solitons
A. Szameit, Y. V. Kartashov, M. Heinrich +7
We report on the experimental observation of two-dimensional solitons located in a defect channel at the surface of a hexagonal waveguide array. The threshold power for the excitat…