Time-variant metasurfaces enable tunable spectral bands of negative extinction

TL;DR

This paper demonstrates that rapidly switched high-Q metasurfaces can create tunable spectral regions with negative optical extinction, offering new possibilities for dynamic control of light.

Contribution

It introduces the use of time-variant metasurfaces to achieve tunable negative extinction in spectral bands, a novel approach in optical metasurface research.

Findings

Spectral regions of negative optical extinction achieved.

Rapid switching of high-Q metasurfaces demonstrated.

Potential for dynamic optical control shown.

Abstract

We demonstrate that rapidly switched high-Q metasurfaces enable spectral regions of negative optical extinction.