Fullwave Maxwell inverse design of axisymmetric, tunable, and multi-scale multi-wavelength metalenses

Abstract

We demonstrate new axisymmetric inverse-design techniques that can solve problems radically different from traditional lenses, including \emph{reconfigurable} lenses (that shift a multi-frequency focal spot in response to refractive-index changes) and {\emph{widely separated}} multi-wavelength lenses ($\lambda =1\mu$m and $10\mu$m). We also present experimental validation for an axisymmetric inverse-designed monochrome lens in the near-infrared fabricated via two-photon polymerization. Axisymmetry allows fullwave Maxwell solvers to be scaled up to structures hundreds or even thousands of wavelengths in diameter before requiring domain-decomposition approximations, while multilayer topology optimization with $\sim 10^5$ degrees of freedom can tackle challenging design problems even when restricted to axisymmetric structures.

arXiv comment13 pages, 6 figures

References in corpus (11)

• Outlook for inverse design in nanophotonics
• Multiwavelength Achromatic Metasurfaces by Dispersive Phase Compensation
• Extreme Broadband Transparent Optical Phase Change Materials for High-Performance Nonvolatile Photonics
• High-NA Achromatic Metalenses by Inverse Design
• Inverse design of large-area metasurfaces
• Topology Optimized Multi-layered Meta-optics
• Topology optimization of freeform large-area metasurfaces
• Nonlinear imaging with all-dielectric metasurfaces
• Maximizing the quality factor to mode volume ratio for ultra-small photonic crystal cavities
• Overlapping domains for topology optimization of large-area metasurfaces
• 3D-Printed Chiral Metasurface as Dichroic Dual-Band Polarization Converter

Cited by in corpus (17)

• Inverse design enables large-scale high-performance meta-optics reshaping virtual reality
• Inverse design in photonics by topology optimization: tutorial
• Computational inverse design for ultra-compact single-piece metalenses free of chromatic and angular aberration
• Towards 3D-Printed Inverse-Designed Metaoptics
• Thickness bound for nonlocal wide-field-of-view metalenses
• Inverse design of plasma metamaterial devices for optical computing
• Designing Collective Non-local Responses of Metasurfaces
• Transcending shift-invariance in the paraxial regime via end-to-end inverse design of freeform nanophotonics
• Inverse design and experimental realization of plasma metamaterials
• Scalable freeform optimization of wide-aperture 3D metalenses by zoned discrete axisymmetry
• Inverse Design of Unitary Transmission Matrices in Silicon Photonic Coupled Waveguide Arrays using a Neural Adjoint Model
• End-to-end metasurface design for temperature imaging via broadband Planck-radiation regression
• Inverse design of plasma metamaterial devices with realistic elements
• Efficient perturbative framework for coupling of radiative and guided modes in nearly periodic surfaces
• Inverse-Designed Metasurfaces for Wavefront Restoration in Under-Display Camera Systems
• Inverse design of multiresonance filters via quasi-normal mode theory
• Fast approximate solvers for metamaterials design in electromagnetism