Plasmonic Lattice Lenses for Multiwavelength Achromatic Focusing

Jingtian Hu, Chang Hua Liu, Xiaochen Ren, Lincoln J. Lauhon, Teri W. Odom*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

68 Scopus citations


This paper describes an evolutionary approach to design flat multiwavelength achromatic lenses based on subwavelength plasmonic nanoparticles. Our lattice evolution algorithm achieved desired optical responses by tuning the arrangement of the phase units on a discrete square lattice. Lattice lenses consisting of a single type of nanoparticle could operate at any wavelength in the visible to near-infrared regime (540-1000 nm) by tailoring the localized surface plasmon resonance. When the unit cells were expanded to anisotropic particle shapes, the planar optics could selectively focus light depending on the polarization of incident light. Finally, the algorithm realized efficient multiobjective optimization and produced achromatic lattice lenses at up to three wavelengths (λ = 600 nm, λ = 785 nm, and λ = 980 nm) using multiple different nanoparticle shapes.

Original languageEnglish (US)
Pages (from-to)10275-10282
Number of pages8
JournalACS nano
Issue number11
StatePublished - Nov 22 2016


  • achromatic focusing
  • evolutionary algorithm
  • flat lenses
  • gold nanoparticles
  • metasurface
  • predictive design

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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