Multifunctional metaoptics based on bilayer metasurfaces

You Zhou; Ivan I. Kravchenko; Hao Wang; Hanyu Zheng; Gong Gu; Jason Valentine

doi:10.1038/s41377-019-0193-3

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Multifunctional metaoptics based on bilayer metasurfaces

Article

- Multifunctional metaoptics based on bilayer metasurfaces
- Light: Science & Applications Vol. 8, Issue 5, Pages: 798-806(2019)
- Affiliations：
  
  1.Interdisciplinary Materials Science Program, Vanderbilt University, Nashville, TN 37212, USA
  2.Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
  3.Min H. Kao Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN 37996, USA
  4.Department of Electric Engineering and Computer Science, Vanderbilt University, Nashville, TN 37212, USA
  5.Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37212, USA
- Author bio：
  
  Jason Valentine (jason.g.valentine@vanderbilt.edu)
- Funds：
- DOI：10.1038/s41377-019-0193-3
  CLC：
- Published：2019，
  
  Published Online：04 September 2019，
  
  Received：09 February 2019，
  
  Revised：02 July 2019，
  
  Accepted：31 August 2019
- Accepted：
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Zhou, Y. et al. Multifunctional metaoptics based on bilayer metasurfaces. Light: Science & Applications, 8, 798-806 (2019).
DOI：

Zhou, Y. et al. Multifunctional metaoptics based on bilayer metasurfaces. Light: Science & Applications, 8, 798-806 (2019). DOI： 10.1038/s41377-019-0193-3.

摘要

Abstract

Optical metasurfaces have become versatile platforms for manipulating the phase

amplitude

and polarization of light. A platform for achieving independent control over each of these properties

however

remains elusive due to the limited engineering space available when using a single-layer metasurface. For instance

multiwavelength metasurfaces suffer from performance limitations due to space filling constraints

while control over phase and amplitude can be achieved

but only for a single polarization. Here

we explore bilayer dielectric metasurfaces to expand the design space for metaoptics. The ability to independently control the geometry and function of each layer enables the development of multifunctional metaoptics in which two or more optical properties are independently designed. As a proof of concept

we demonstrate multiwavelength holograms

multiwavelength waveplates

and polarization-insensitive 3D holograms based on phase and amplitude masks. The proposed architecture opens a new avenue for designing complex flat optics with a wide variety of functionalities.

关键词

Keywords

references

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