Hybrid metasurfaces for simultaneous focusing and filtering

Mansoor A. Sultan, Fatih Balli, Daniel L. Lau, J. Todd Hastings

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

This work presents the design and fabrication of polymeric, structural optical filters that simultaneously focus light. These filters represent a novel, to the best of our knowledge, design at the boundary between diffractive optics and metasurfaces that may provide significant advantages for both digital and hyperspectral imaging. Filters for visible and near-infrared wavelengths were designed using finite-difference time-domain (FDTD) simulations. Prototype filters were fabricated using two-photon lithography, a form of nanoscale 3D printing, and have geometries suitable to replication by molding. The experimentally measured spectral transmission and focused spot size of each filter show excellent agreement with simulation.

Original languageEnglish
Pages (from-to)214-217
Number of pages4
JournalOptics Letters
Volume46
Issue number2
DOIs
StatePublished - Jan 15 2021

Bibliographical note

Publisher Copyright:
© 2021 Optical Society of America

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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