Directional Radiated Emission from Converging Waveguide Arrays
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Knefeli, Pascal D.
Heinrich, Matthias
Maczewsky, Lukas J.
Sukhorukov, Andrey A.
Szameit, Alexander
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Institute of Electrical and Electronics Engineers Inc.
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Abstract
Inspired by the concept of leaky-wave antennas, designs for directed radiation were recently developed in the context of nano-particle arrays [1] , [2] and plasmonic nanowire waveguides [3]. Notably, in these two cases, emission predominantly occurs in longitudinal direction. In this work, we demonstrate how arrays of evanescently coupled optical waveguides may likewise serve as leaky-wave antennas, and show that they can be tailored to selectively emit radiation within the plane of the lattice.
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2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
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