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Minireview on Disordered Optical Metasurfaces
P. Lalanne, A. Dmitriev, C. Rockstuhl +2
The use of coherent wave phenomena to enhance device performance is a cornerstone of modern optics. In juxtaposition to (locally) periodic metasurfaces, their disordered counterpar…
The art of finding the optimal scattering center(s)
Alexander V. Kildishev, Karim Achouri, Daria Smirnova
The efficient use of a multipole expansion of the far field for rapid numerical modeling and optimization of the optical response from ordered and disordered arrays of various stru…
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…
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…
Demonstration of a plasmonic nonlinear pseudo-diode
Sergejs Boroviks, Andrei Kiselev, Karim Achouri +1
We demonstrate a nonlinear plasmonic metasurface that exhibits strongly asymmetric second-harmonic generation: nonlinear scattering is efficient upon excitation in one direction an…