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arXiv · 2005.12332

Multifunctional Nonlocal Metasurfaces

Adam C. Overvig·Stephanie C. Malek·Nanfang Yu
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Abstract

Diffractive photonic devices manipulate light via local and nonlocal optical modes. Local devices, such as metasurfaces, can shape a wavefront at multiple selected wavelengths, but inevitably modify light across the spectrum; nonlocal devices, such as grating filters, offer great frequency selectivity but limited spatial control. Here, we introduce a rational design paradigm using quasi-bound states in the continuum to realize multifunctional nonlocal devices: metasurfaces that produce narrowband spatially tailored wavefronts at multiple selected wavelengths and yet are otherwise transparent.

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Adam C. Overvig, Stephanie C. Malek, Nanfang Yu. 2020-05-25. Multifunctional Nonlocal Metasurfaces. https://doi.org/10.1103/physrevlett.125.017402

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