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

Ballew, Conner and Roberts, Gregory and Camayd-Muñoz, Philip and Debbas, Maximilien F. and Faraon, Andrei (2020) Topology optimized multi-functional mechanically reconfigurable meta-optics studied at microwave frequencies. . (Unpublished)

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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.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Camayd-Muñoz, Philip0000-0002-1203-3083
Faraon, Andrei0000-0002-8141-391X
Additional Information:This work was funded by Defense Advanced Research Projects Agency EXTREME program (HR00111720035).
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)HR00111720035
Record Number:CaltechAUTHORS:20201203-151025471
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106899
Deposited By: George Porter
Deposited On:04 Dec 2020 17:57
Last Modified:04 Dec 2020 17:58

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