Multifunctional Nonlocal Metasurfaces

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.

15 pages, 4 figures

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• Nonlocal Flat Optics
• Leaky-wave metasurfaces for integrated photonics
• Perfect diffraction metagratings supporting bound states in the continuum and exceptional points
• Phase-change nonlocal metasurfaces for dynamic wavefront manipulation
• Fast multi-source nanophotonic simulations using augmented partial factorization
• Engineering Quantum Light Sources with Flat Optics
• Roadmap on Nonlocality in Photonic Materials and Metamaterials
• Designing high-performance propagation-compressing spaceplates using thin-film multilayer stacks
• Enabling infinite $Q$ factors in absorbing optical systems
• Learning complexity to guide light-induced self-organized nanopatterns
• Deep Neural Operator Enabled Concurrent Multitask Design for Multifunctional Metamaterials under Heterogeneous Fields
• High efficiency, high quality factor active membrane metasurfaces with extended Kerker effect
• Tunable edge and depth sensing via phase-change nonlocal metasurfaces
• Control of the local and nonlocal electromagnetic response in all-dielectric reconfigurable metasurfaces
• Tailoring sub-Doppler spectra of thermal atoms with a dielectric optical metasurface chip
• Nonlocal metasurfaces for spectrally decoupled wavefront manipulation and eye tracking
• Fast approximate solvers for metamaterials design in electromagnetism