Reverse resonant nonspecular reflection controlled by intensity of light

TL;DR

This paper investigates a nonlinear optical structure with silicon disks on silver that exhibits bistable resonant reflection, allowing control of both specular and reverse reflectance by adjusting incident light intensity.

Contribution

It introduces a novel bistable resonant reflection mechanism in a silicon-silver structure, enabling tunable control of reflectance directions through light intensity.

Findings

The structure exhibits bistable resonant reflection.

Both specular and reverse reflectance can be tuned.

Reflectance values depend on incident light intensity.

Abstract

Nonlinear optical features of a plane structure consisted of silicon disks placed periodically on a silver substrate have been studied in the Littrow reflection scenario. The structure manifests a bistable resonant reflective ability. Values of both specular reflectance and reverse one can be tuned by varying an intensity of incident light.