A metamaterial analog of electromagnetically induced transparency

TL;DR

This paper introduces a novel planar metamaterial that mimics electromagnetically induced transparency, enabling slow light propagation with high transmission in a compact structure, and allows stacking for enhanced dispersion effects.

Contribution

It presents the first metamaterial analog of electromagnetically induced transparency, demonstrating slow light and stacking capabilities in a compact design.

Findings

Pulses experience significant delay in the metamaterial.

High transmission levels are maintained despite strong dispersion.

Stacking multiple slabs enhances dispersion effects.

Abstract

We present a new type of electromagnetic planar metamaterial that exhibit strong dispersion at a local minimum of losses and is believed to be the first metamaterial analog of electromagnetically induced transparency. We demonstrate that pulses propagating through such metamaterials experience considerable delay, whereas the thickness of the structure along the direction of wave propagation is much smaller than the wavelength, which allows successive stacking of multiple metamaterial slabs. This leads to a significant increase in the band of normal dispersion, as well as in transmission levels.