High-Efficiency All-Dielectric Metasurfaces for Ultra-Compact Beam Manipulation in Transmission Mode

TL;DR

This paper demonstrates high-efficiency dielectric metasurfaces made of silicon that can precisely control light's phase and polarization in transmission mode, promising advances in integrated optical circuits.

Contribution

It presents the first experimental realization of polarization-sensitive silicon metasurfaces with full 2pi phase control at telecommunication wavelengths.

Findings

Achieved high transmission efficiency in dielectric metasurfaces.

Demonstrated full 2pi phase control in transmission mode.

Enabled potential for integrated all-optical circuitry.

Abstract

Metasurfaces are two-dimensional optical structures enabling complete control of the amplitude, phase, and polarization of light. Unlike plasmonic metasurfaces, planar silicon structures facilitate high transmission, low losses and compatibility with existing semiconductor technologies. Here, we report an experimental demonstration of high-efficiency polarization- sensitive dielectric metasurfaces with full 2pi phase control in transmission mode at telecommunication wavelengths. Such silicon metasurfaces are poised to enable a versatile optical platform the realization of all-optical circuitry on a chip.