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 reconfigurable lenses (that shift a multi-frequency focal spot in response to refractive-index changes) and widely separated multi-wavelength lenses (λ = 1 µm and 10 µm). 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 ∼105 degrees of freedom can tackle challenging design problems even when restricted to axisymmetric structures.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 26, 2020
- Source ID
- 10.1364/oe.403192
Entities
People
- Charles Roques-Carmes
- John D. Joannopoulos
- Marin Soljačić
- Rasmus E Christiansen
- Steven E Kooi
- Steven G. Johnson
- Yannick Salamin
- Zin Lin
Organizations
- Army Research Office
- Danish National Research Foundation
- Swiss National Science Foundation
- Villum Foundation