57 citations · 140 across the 7 of their papers we have counts for
8 papers
Quadrupolar susceptibility modeling of substrated metasurfaces with application to the generalized Brewster effect
Ville Tiukuvaara, Olivier J. F. Martin, Karim Achouri
We derive generalized sheet transition conditions (GSTCs) including dipoles and quadrupoles, using generalized functions (distributions). This derivation verifies that the GSTCs ar…
Spatial Symmetries in Multipolar Metasurfaces: From Asymmetric Angular Transmittance to Multipolar Extrinsic Chirality
Karim Achouri, Ville Tiukuvaara, Olivier J. F. Martin
We propose a framework that connects the spatial symmetries of a metasurface to its material parameter tensors and its scattering matrix. This provides a simple yet effective way t…
Surface Susceptibilities as Compact Full-Wave Simulation Models of Fully-Reflective Volumetric Metasurfaces
Ville Tiukuvaara, Tom. J. Smy, Karim Achouri +1
While metasurfaces (MSs) are constructed from deeply-subwavelength unit cells, they are generally electrically large and full-wave simulations of the complete structure are computa…
Metasurface Near-field Measurements with Incident Field Reconstruction using a Single Horn Antenna
Ville Tiukuvaara, Kan Wang, Tom J. Smy +1
A simple method of superimposing multiple near field scans using a single horn antenna in different configurations to characterize a planar electromagnetic metasurface is proposed…
IE-GSTC Metasurface Field Solver using Surface Susceptibility Tensors with Normal Polarizabilities
Tom. J. Smy, Ville Tiukuvaara, Shulabh Gupta
An Integral Equation (IE) based electromagnetic field solver using metasurface susceptibility tensors is proposed and validated using variety of numerical examples in 2D. The propo…
Multipolar Modeling of Spatially Dispersive Metasurfaces
Karim Achouri, Olivier J. F. Martin
There is today a growing need to accurately model the angular scattering response of metasurfaces for optical analog processing applications. However, the current metasurface model…
Floquet Analysis of Space-Time Modulated Huygens' Metasurfaces with Lorentz Dispersion
Ville Tiukuvaara, Tom J. Smy, Shulabh Gupta
A rigorous semi-analytical Floquet analysis is proposed for a zero-thickness space-time modulated Huygens' metasurface to model and determine the strengths of the new harmonic comp…
Complex Eigenmodes and Eigenfrequencies in Electromagnetics
João G. Nizer Rahmeier, Ville Tiukuvaara, Shulabh Gupta
A first comprehensive treatment on complex eigenmodes is presented for general lossy traveling-wave electromagnetic structures where the per unit length propagation phase shift ($β…