Abstract
Optical metasurfaces offer a compact platform for manipulation of the amplitude, phase, and polarization state of light. Independent control over these properties, however, is hindered by the symmetric transmission matrix associated with single-layer metasurfaces. Here, we utilize multilayer birefringent meta-optics to realize high-efficiency, independent control over the amplitude, phase, and polarization state of light. High-efficiency control is enabled by redistributing the wavefront between cascaded metasurfaces, while end-to-end inverse design is used to realize independent complex-valued functions for orthogonal polarization states. Based on this platform, we demonstrate spatial mode division multiplexing, optical mode conversion, and universal vectorial holograms, all with diffraction efficiencies over 80%. This meta-optic platform expands the design space of flat optics and could lead to advances in optical communications, quantum entanglement, and information encryption.
| Original language | English |
|---|---|
| Pages (from-to) | 15100-15107 |
| Number of pages | 8 |
| Journal | ACS Nano |
| Volume | 16 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 27 2022 |
Funding
H.Z., Y.Z., and J.G.V. acknowledge financial support from the Office of Naval Research under grant number N00014-18-1-2568. M.H. and J.D.C. both acknowledge financial support from the Office of Naval Research under grant number N00014-22-1-2035. Part of the fabrication process was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. The remainder of the fabrication process took place in the Vanderbilt Institute of Nanoscale Science and Engineering (VINSE), and the authors thank the staff for their support.
| Funders | Funder number |
|---|---|
| Office of Naval Research | N00014-18-1-2568, N00014-22-1-2035 |
Keywords
- compound meta-optics
- inverse design
- mode conversion
- spatial division multiplexing
- vectorial holography