Metasurface Optics for Full-color Computational Imaging

Abstract

Conventional imaging systems comprise large and expensive optical components which successively mitigate aberrations. Metasurface optics offers a route to miniaturize imaging systems by replacing bulky components with flat and compact implementations. The diffractive nature of these devices, however, induces severe chromatic aberrations and current multi-wavelength and narrowband achromatic metasurfaces cannot support full visible spectum imaging (400-700 nm). We combine principles of both computational imaging and metasurface optics to build a system with a single metalens of NA ~ 0.45 which generates in-focus images under white light illumination. Our metalens exhibits a spectrally invariant point spread function which enables computational reconstruction of captured images with a single digital filter. This work connects computational imaging and metasurface optics and demonstrates the capabilities of combining these disciplines by simultaneously reducing aberrations and downsizing imaging systems with simpler optics.

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Cited by in corpus (36)

• A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures
• Global optimization of dielectric metasurfaces using a physics-driven neural network
• Neural Nano-Optics for High-quality Thin Lens Imaging
• A Hybrid Achromatic Metalens
• An achromatic metafiber for focusing and imaging across the entire telecommunication range
• Meta-optics for spatial optical analog computing
• Silicon nitride metalenses for unpolarized high-NA visible imaging
• Inverse designed metalenses with extended depth of focus
• Deep Learning Reveals Underlying Physics of Light-matter Interactions in Nanophotonic Devices
• Computational inverse design for cascaded systems of metasurface optics
• Knowledge Discovery In Nanophotonics Using Geometric Deep Learning
• Hyper Resolution Two Photon Direct Laser Writing using ENZ Nano-Cavity
• Hyper Resolute Ultra thin Low Cost All-Dielectric Broadband Achromatic Metalenses
• Ultrathin van der Waals metalenses
• Design and Analysis of Extended Depth of Focus Metalenses for Achromatic Computational Imaging
• Inverse Designed Extended Depth of Focus Meta-Optics for Broadband Imaging in the Visible
• Simultaneous achromatic and varifocal imaging with quartic metasurfaces in the visible
• Imaging from the Visible to the Longwave Infrared wavelengths via an inverse-designed flat lens
• Metasurface optical characterization using quadriwave lateral shearing interferometry
• Manifold Learning for Knowledge Discovery and Intelligent Inverse Design of Photonic Nanostructures: Breaking the Geometric Complexity
• Spectral lens enables a minimalist framework for hyperspectral imaging
• Roadmap on Nonlocality in Photonic Materials and Metamaterials
• Nonlinear bicolor holography using plasmonic metasurfaces
• Design of achromatic augmented reality visors based on composite metasurfaces
• End-to-end joint optimization of metasurface and image processing for compact snapshot hyperspectral imaging
• Neural-Optic Co-Designed Polarization-Multiplexed Metalens for Compact Computational Spectral Imaging
• Large Field-of-View Thermal Imaging via All-Silicon Meta-Optics
• Correction of aberrations via polarization in single layer metalenses
• Integration of Programmable Diffraction with Digital Neural Networks
• 1D self-healing beams in integrated silicon photonics
• How good is your metalens? Experimental verification of metalens performance criterion
• EigenCWD: a spatially-varying deconvolution algorithm for single metalens imaging
• Equivalence of reflection paths of light and Feynman paths in stacked metasurfaces
• Image amplification in a self-imaging degenerate optical cavity
• Porous SiO${}_2$ coated dielectric metasurface with consistent performance independent of environmental conditions
• Hybrid Diffractive Optics Design via Hardware-in-the-Loop Methodology for Achromatic Extended-Depth-of-Field Imaging