Nonlocal Flat Optics
arXiv:2209.02120 · doi:10.1038/s41566-022-01098-5
Abstract
In electromagnetics and photonics, "nonlocality" refers to the phenomenon by which the response/output of a material or system at a certain point in space depends on the input field across an extended region of space. While nonlocal effects and the associated wavevector/momentum-dependence have often been neglected or seen as a nuisance in the context of metasurfaces, the emerging field of nonlocal flat optics seeks to exploit strong effective nonlocality to enrich and enhance their response. In this Review, we summarize the latest advances in this field, focusing on its fundamental principles and various applications, from optical computing to space compression. The convergence of local and nonlocal flat optics may open exciting opportunities in the quest to control light, in real and momentum space, using ultra-thin platforms.
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Cited by in corpus (20)
- Applications of Bound States in the Continuum in Photonics
- Enhanced infrared vision by nonlinear up-conversion in nonlocal metasurfaces
- Engineering Quantum Light Sources with Flat Optics
- Roadmap on Nonlocality in Photonic Materials and Metamaterials
- Nonlocal phase-change metaoptics for reconfigurable nonvolatile image processing
- Dynamic dielectric metasurfaces via control of surface lattice resonances in non-homogeneous environment
- High efficiency, high quality factor active membrane metasurfaces with extended Kerker effect
- Degenerate merging BICs in resonant metasurfaces
- Tunable edge and depth sensing via phase-change nonlocal metasurfaces
- Generalized Huygens' condition as the fulcrum of planar nonlocal omnidirectional transparency: from meta-atoms to metasurfaces
- Transmission efficiency limit for nonlocal metalenses
- Control of the local and nonlocal electromagnetic response in all-dielectric reconfigurable metasurfaces
- Light structuring via nonlinear total angular momentum addition with flat optics
- Shrinking a gradient index lens antenna system with a spaceplate
- Gigahertz modulation of a fully dielectric nonlocal metasurface
- Spatial Filtering with Nonlocal Non-Hermitian Metasurfaces
- Step Function in Momentum Space by a Metagrating
- Fast approximate solvers for metamaterials design in electromagnetism
- Broadband Low-loss Unidirectional Reflection On-chip with Asymmetric Dielectric Metasurface
- Metalens formed by structured arrays of atomic emitters