Lossless Airy Surface Polaritons in a Metamaterial via Active Raman Gain.

Qi Zhang,Guoxiang Huang,Chaohua Tan

doi:10.1038/srep21143

Qi Zhang, Guoxiang Huang + Show 1 more

Open Access

https://doi.org/10.1038/srep21143

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Abstract

We propose a scheme to realize a lossless propagation of linear and nonlinear Airy surface polaritons (SPs) via active Raman gain (ARG). The system we suggest is a planar interface superposed by a negative index metamaterial (NIMM) and a dielectric, where three-level quantum emitters are doped. By using the ARG from the quantum emitters and the destructive interference effect between the electric and magnetic responses from the NIMM, we show that not only the Ohmic loss of the NIMM but also the light absorption of the quantum emitters can be completely eliminated. As a result, non-diffractive Airy SPs may propagate for very long distance without attenuation. We also show that the Kerr nonlinearity of the system can be largely enhanced due to the introduction of the quantum emitters and hence lossless Airy surface polaritonic solitons with very low power can be generated in the system.

Highlights

In a seminar paper, Berry and Balaze1 showed that a quantum-mechanical wavepacket with the form of Airy function has the ability to resist dispersion and can freely accelerate without requiring any external potential
We show that the Kerr nonlinearity of the system can be largely enhanced due to the introduction of the quantum emitters and lossless Airy surface polaritonic solitons propagating down the negative index metamaterial (NIMM)-dielectric interface with very low power can be realized
These phenomena are similar to those found in refs 12,13, what we explored here is for Airy surface polaritonic solitons, which are not reported in literature up to now

Summary

Introduction

Berry and Balaze1 showed that a quantum-mechanical wavepacket with the form of Airy function has the ability to resist dispersion and can freely accelerate without requiring any external potential. We show that the Kerr nonlinearity of the system can be largely enhanced due to the introduction of the quantum emitters and lossless Airy surface polaritonic solitons propagating down the NIMM-dielectric interface with very low power can be realized.

Results

Conclusion