Storage and retrieval of electromagnetic waves using electromagnetically induced transparency in a nonlinear metamaterial

TL;DR

This paper demonstrates the storage and retrieval of electromagnetic waves in a nonlinear metamaterial using an analogy to atomic electromagnetically induced transparency, showing phase preservation and controllable wave storage.

Contribution

It introduces a novel method for electromagnetic wave storage in metamaterials mimicking atomic EIT, with experimental validation of phase-preserving retrieval.

Findings

Successful electromagnetic wave storage and retrieval in a nonlinear metamaterial.

Demonstration of phase distribution reproduction of the input wave.

Validation of the analogy between metamaterials and atomic EIT systems.

Abstract

We investigate the storage and retrieval of electromagnetic waves using a nonlinear metamaterial, analogous to the electromagnetically induced transparency (EIT) observed in atomic systems. We experimentally demonstrate the storage of the electromagnetic wave by reducing an auxiliary "control" wave; the stored wave is then released by recovering the control wave. We also confirm that the metamaterial can store and reproduce the phase distribution of the original input wave. These effects confirm a remarkable analogy between the metamaterial and an atomic EIT medium.