691 citations · 3.6k across the 51 of their papers we have counts for
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Two-dimensional solitons at interfaces between binary superlattices and homogeneous lattices
M. Heinrich, Y. V. Kartashov, L. P. R. Ramirez +7
We report on the experimental observation of two-dimensional surface solitons residing at the interface between a homogeneous square lattice and a superlattice that consists of alt…
Observation of two-dimensional superlattice solitons
M. Heinrich, Y. V. Kartashov, L. P. R. Ramirez +7
We observe experimentally two-dimensional solitons in superlattices comprising alternating deep and shallow waveguides fabricated via the femtosecond laser direct writing technique…
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…
A simple and versatile analytical approach for planar metamaterials
J. Petschulat, A. Chipouline, A. Tuennermann +5
We present an analytical model which permits the calculation of effective material parameters for planar metamaterials consisting of arbitrary unit cells (metaatoms) formed by a se…
Nonlinearity-induced broadening of resonances in dynamically modulated couplers
A. Szameit, Y. V. Kartashov, M. Heinrich +7
We report the observation of nonlinearity-induced broadening of resonances in dynamically modulated directional couplers. When the refractive index of the guiding channels in the c…