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arXiv · 2011.04518

Topology optimized multi-functional mechanically reconfigurable meta-optics studied at microwave frequencies

Conner Ballew·Gregory Roberts·Philip Camayd-Muñoz·Maximilien F Debbas·Andrei Faraon
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Abstract

Metasurfaces advanced the field of optics by reducing the thickness of optical components and merging multiple functionalities into a single layer device. However, this generally comes with a reduction in performance, especially for multifunctional and broadband applications. Three-dimensional metastructures can provide the necessary degrees of freedom for advanced applications, while maintaining minimal thickness. This work explores 3D mechanically reconfigurable devices that perform focusing, spectral demultiplexing, and polarization sorting based on mechanical configuration. As proof of concept, a rotatable device, auxetic device, and a shearing-based device are designed with adjoint-based topology optimization, 3D-printed, and measured at microwave frequencies (7.6-11.6 GHz) in an anechoic chamber.

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Conner Ballew, Gregory Roberts, Philip Camayd-Muñoz, Maximilien F Debbas, Andrei Faraon. 2020-10-29. Topology optimized multi-functional mechanically reconfigurable meta-optics studied at microwave frequencies. https://arxiv.org/abs/2011.04518

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