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Metamaterials and metasurfaces
17:45: Synthesis of Ultra-Wide Bandgaps for 2-D Photonic Crystals of Finite Thickness
Yuriy Sirenko (1), Kostyantyn Sirenko (1), Nataliya Yashina (1), Gerard Granet (2)
(1)National Academy of Sciences of Ukraine (Ukraine) , (2)Université de Clermont-Ferrand (France)
The synthesis problem of 2-D photonic crystals of finite thickness providing the ultra-wide stopbands for the plane incident waves is solved on the base of EAC-method (method of exact absorbing conditions).
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18:00: Design and optimization of holographic nonlinear metasurfaces
David Hähnel, Jens Forstner, Viktor Myroshnychenko
Paderborn University (Germany)
We present the design and optimization of all-dielectric nonlinear metasurfaces using a simple sampling method combined with Monte Carlo simulation and demonstrate that the use of sophisticated optimization methods is not necessary. We apply this approach for the optimization of metasurface composed of silicon disks, which operates as a third harmonic beam deflector at a defined angle. Our results demonstrate a significant enhancement of radiated third harmonic intensity in the first diffraction order compared to that reported in literature.
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online, on-demand
Kevin F. MacDonald, Jinxiang Li, Dimitrios Papas, Jun-Yu Ou, Eric Plum, Nikolay I. Zheludev
University of Southampton (United Kingdom)
By harnessing mechanical and optical resonances in tandem one can enhance the magnitude of actuation and optical response in dynamically reconfigurable nanostructures driven by microwatt optical signals and low-intensity acoustic vibrations. We review recent work on structures exhibiting profound opto-mechanical nonlinearity and bistability.
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18:35 Invited talk: Fast Scattering Matrix Computation for Complex Media and Metasurfaces
online, on-demand
Ho-Chun Lin, Zeyu Wang, Chia Wei Hsu
University of Southern California (USA)
We use the Schur complement and partial factorization to compute the scattering matrices of large-scale complex optical systems and large-area metasurfaces, achieving orders-of-magnitude speed-up and reduced memory usage over existing methods.
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