Storage and Retrieval of Surface Polaritons

TL;DR

This paper explores a method to enhance the storage and retrieval of surface polaritons using electromagnetically induced transparency at a dielectric-metamaterial interface, with potential applications in quantum information.

Contribution

It demonstrates that EIT can significantly improve surface polariton memory, and introduces techniques to enhance efficiency and fidelity using weak microwave fields.

Findings

EIT enhances SP confinement and storage capabilities.

Switching control laser enables SP storage and retrieval.

Weak microwave fields improve memory efficiency and fidelity.

Abstract

We investigate the memory of surface polariton (SP) via the electromagnetically induced transparency (EIT) of quantum emitters doped at the interface between a dielectric and a metamaterial. We show that, due to the strong mode confinement provided by the interface, the EIT effect can be largely enhanced; furthermore, the storage and retrieval of the SP can be realized by switching off and on of a control laser field; additionally, the efficiency and fidelity of the SP memory can be improved much by using a weak microwave field. The results reported here are helpful not only for enhancing the understanding of SP property but also for promising applications in quantum information processing and transmission.