Advances in optical metalenses

A Arbabi, A Faraon - Nature Photonics, 2023 - nature.com
Optical metalenses—two-dimensional arrays of submicrometre scatterers that collectively
focus light—have experienced growing research interest in recent years as they can realize …

Revisiting the design strategies for metasurfaces: fundamental physics, optimization, and beyond

S So, J Mun, J Park, J Rho - Advanced Materials, 2023 - Wiley Online Library
Over the last two decades, the capabilities of metasurfaces in light modulation with
subwavelength thickness have been proven, and metasurfaces are expected to miniaturize …

Empowering metasurfaces with inverse design: principles and applications

Z Li, R Pestourie, Z Lin, SG Johnson, F Capasso - Acs Photonics, 2022 - ACS Publications
Conventional human-driven methods face limitations in designing complex functional
metasurfaces. Inverse design is poised to empower metasurface research by embracing fast …

Realization of high-performance optical metasurfaces over a large area: a review from a design perspective

M Choi, J Park, J Shin, H Keawmuang, H Kim… - npj …, 2024 - nature.com
Remarkable advancements have been made in the design of optical metasurfaces in recent
years, particularly in compact designs. However, for their practical integration into diverse …

Shape optimization for high efficiency metasurfaces: theory and implementation

P Dainese, L Marra, D Cassara, A Portes… - Light: Science & …, 2024 - nature.com
Complex non-local behavior makes designing high efficiency and multifunctional
metasurfaces a significant challenge. While using libraries of meta-atoms provide a simple …

Emerging planar nanostructures involving both local and nonlocal modes

R Chai, Q Liu, W Liu, Z Li, H Cheng, J Tian… - ACS …, 2023 - ACS Publications
With the capabilities to localize light at the subwavelength scale and flexibly control the full
dimensions of electromagnetic fields, planar optical artificial nanostructures have been …

Fast multi-source nanophotonic simulations using augmented partial factorization

HC Lin, Z Wang, CW Hsu - Nature Computational Science, 2022 - nature.com
Numerical solutions of Maxwell's equations are indispensable for nanophotonics and
electromagnetics but are constrained when it comes to large systems, especially multi …

Large area optimization of meta-lens via data-free machine learning

M Zhelyeznyakov, J Fröch, A Wirth-Singh… - Communications …, 2023 - nature.com
Sub-wavelength diffractive optics, commonly known as meta-optics, present a complex
numerical simulation challenge, due to their multi-scale nature. The behavior of constituent …

High-efficiency high-numerical-aperture metalens designed by maximizing the efficiency limit

S Li, HC Lin, CW Hsu - Optica, 2024 - opg.optica.org
Theoretical bounds are commonly used to assess the limitations of photonic design. Here
we introduce a more active way to use theoretical bounds, integrating them into part of the …

Fast Multichannel Inverse Design through Augmented Partial Factorization

S Li, HC Lin, CW Hsu - ACS photonics, 2024 - ACS Publications
Computer-automated design and discovery have led to high-performance nanophotonic
devices with diverse functionalities. However, massively multichannel systems such as …