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Metasurface-Dressed Two-Dimensional on-Chip Waveguide for Free-Space Light Field Manipulation
Yimin Ding1, Xi Chen1, Yao Duan1
1Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.
ACS Photonics
|February 28, 2022
Summary
We developed a compact photonic device using metasurfaces to precisely control light fields. This breakthrough enables complex light manipulation for applications like advanced displays and LiDAR.
Area of Science:
- Photonics and Optical Engineering
- Materials Science
- Nanotechnology
Background:
- Optical metasurfaces offer unparalleled control over light wavefronts.
- Photonic integrated circuits provide compact and scalable platforms for optical functions.
Purpose of the Study:
- To integrate metasurfaces with 2D slab waveguides for complex light field generation.
- To demonstrate on-chip control of light for advanced optical applications.
Main Methods:
- Coating a two-dimensional slab waveguide with a metasurface.
- Utilizing the metasurface for wavefront manipulation and light field control.
- Fabricating and testing integrated photonic devices.
Main Results:
- Achieved arbitrary complex light field generation.
- Demonstrated off-chip two-dimensional focusing and holographic projection.
- Successfully combined metasurface versatility with photonic circuit compactness.
Conclusions:
- Metasurface-coated 2D slab waveguides offer a powerful platform for integrated photonic devices.
- This technology enables precise 2D light field manipulation for diverse applications.
- Potential applications include solid-state LiDAR and augmented/virtual reality displays.
