Electromagnetic response of a metamaterial with field-gradient-induced transparency

TL;DR

This paper demonstrates a metamaterial that exhibits controllable transparency by using the field gradient of incident waves to induce coupling between resonators, with both simulation and experimental validation.

Contribution

It introduces a novel dynamically controllable metamaterial leveraging field-gradient-induced coupling for electromagnetic transparency.

Findings

Demonstrates dynamic control of electromagnetic response

Validates results through simulation and experiments

Shows potential for tunable electromagnetic devices

Abstract

We investigate a dynamically controllable electromagnetically induced transparency-like metamaterial. The unit structure of the metamaterial consists of a low-quality-factor resonator and a high-quality-factor resonator. The field gradient of the incident electromagnetic wave in the transverse direction induces coupling between these two types of resonators and causes a transparency phenomenon. We present the simulation and experimental results for the dynamic control of the electromagnetic response.