Coherent Amplification of Optical Pulses in Metamaterials

TL;DR

This paper theoretically investigates how ultrashort optical pulses propagate in dissipative metamaterials with embedded gain media, analyzing pulse shape and velocity in different configurations.

Contribution

It introduces a theoretical framework for understanding pulse propagation in complex metamaterials with gain and loss components.

Findings

Pulse shape and velocity depend on the configuration of gain and loss.

Steady-state pulse propagation can be achieved in dissipative metamaterials.

Different embedding strategies affect pulse dynamics.

Abstract

In this paper we theoretically study propagation of steady state ultrashort pulse in dissipative medium. We considered two cases (i) medium consists of lossy metallic nanostructures embedded into a gain material and (ii) the gain material is embedded directly into the nanostructures. We found the shape and velocity of an optical pulse coupled with the polarization wave.