High-efficiency Dual-band Bifocal Metalens Based on Reflective Metasurface

Rensheng Xie, Yiting Liu, Tailei Wang, Guohua Zhai, Jianjun Gao, Jun DIng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Achieving wavelength-independent behavior in a single metasurface is of great significance for electromagnetic integrated system. In this work, a novel dual-band meta-atom is proposed for reflecting the incident wave to its cross-polarized component with high efficiencies. Beside the phase modulation, the amplitude can also be tailored independently at two gigahertz frequencies. As a demonstration example, a dual-band bifocal reflective metalens is designed and numerically verified. The full-wave simulation results are in good agreement with the design goals.

Original languageEnglish
Title of host publication2019 IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538671115
DOIs
StatePublished - Mar 2019
Event5th IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Shanghai, China
Duration: 20 Mar 201922 Mar 2019

Publication series

Name2019 IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Proceedings

Conference

Conference5th IEEE International Conference on Computational Electromagnetics, ICCEM 2019
Country/TerritoryChina
CityShanghai
Period20/03/1922/03/19

Keywords

  • dual-band
  • high-efficiency
  • metalens
  • reflection

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