Controlled processing of signal stored in metamaterial with tripod structure

TL;DR

This paper explores how a tripod-structured metamaterial can be used to control, store, and release electromagnetic signals by manipulating coupling parameters and control fields, enabling precise signal management.

Contribution

It provides a theoretical framework for electromagnetically induced transparency and signal storage in tripod-structured metamaterials, demonstrating controllable signal release and division.

Findings

Transparency window positions depend on coupling parameters.

Signals can be stored as electric charge oscillations within the metamaterial.

Stored signals can be released and divided on demand by manipulating control fields.

Abstract

In the present paper we have discussed in detail electromagnetically induced transparency and signal storing in the case of one signal pulses propagating in a classical electric medium resembling this of four-level atoms in the tripod configuration. Our theoretical results confirm recently observed dependence of transparency windows position on coupling parameters. In the process of storing the pulse energy is confined inside the metamaterial as electric charge oscillations and after required time it is possible to switch the control fields on again and to release the trapped signal. By manipulating the driving fields one can thus control the parameters of the released signal and even to divide it on demand into arbitrary parts.