22 citations · 24 across the 4 of their papers we have counts for
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Multipolar Pseudochirality Induced Optical Torque
Karim Achouri, Mintae Chung, Andrei Kiselev +1
It has been observed that achiral nano-particles, such as flat helices, may be subjected to an optical torque even when illuminated by normally incident linearly polarized light. H…
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…
Multipolar expansions for scattering and optical force calculations beyond the long wavelength approximation
Marco Riccardi, Andrei Kiselev, Karim Achouri +1
We review three different approaches for the calculation of electromagnetic multipoles, namely the Cartesian primitive multipoles, the Cartesian irreducible multipoles and the sphe…
Synthesis and Applications of Birefringent Metasurfaces
Karim Achouri, Guillaume Lavigne and, Christophe Caloz
Birefringent metasurfaces are two-dimensional structures capable of independently controlling the amplitude, phase and polarization of orthogonally polarized incident waves. In thi…