Multifunctional conformal grayscale electromagnetic metamaterials

Qinglan Huang; Lucia T. Gan; Jonathan A. Fan

doi:10.1117/12.2614563

5 March 2022 Multifunctional conformal grayscale electromagnetic metamaterials

Qinglan Huang, Lucia T. Gan, Jonathan A. Fan

Proceedings Volume 12011, High Contrast Metastructures XI; 1201102 (2022) https://doi.org/10.1117/12.2614563
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

We present conformal grayscale metamaterials that encodes multifunctional electromagnetic responses for a broad angle and broad bandwidth in an arbitrary form factor. Pushing the limit in the material degrees of freedom, the metamaterial assumes a high contrast, grayscale dielectric constants varying at the subwavelength scale. Conformal form factor is realized by discretizing the device into irregular voxels. Extremely high performing devices are inverse designed via gradient-based optimization and fabricated via additive manufacturing. We demonstrate a suite of multifunctional wave manipulations at RF frequency, including dispersion engineering, beam forming and steering in an airfoil-shaped structure, and conformal carpet cloak.

Conference Presentation

Citation Download Citation

Qinglan Huang, Lucia T. Gan, and Jonathan A. Fan "Multifunctional conformal grayscale electromagnetic metamaterials", Proc. SPIE 12011, High Contrast Metastructures XI, 1201102 (5 March 2022); https://doi.org/10.1117/12.2614563

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