Extraordinary optical transmission of multimode quantum correlations via localized surface plasmons

TL;DR

This paper demonstrates the coherent transfer of quantum noise reduction (squeezed light) through localized surface plasmons in silver nanostructures, showing potential for quantum photonic applications.

Contribution

It introduces a method for coherent quantum noise transduction using localized surface plasmons, bridging quantum optics and plasmonic nanostructures.

Findings

Quantum noise reduction matches linear attenuation models.

Photon-LSP-photon transduction is coherent near resonance.

Demonstrates quantum noise transfer via LSPs at 795 nm.

Abstract

We demonstrate the coherent transduction of quantum noise reduction, or squeezed light, by Ag localized surface plasmons (LSPs). Squeezed light, generated through four-wave-mixing in Rb vapor, is coupled to a Ag nanohole array designed to exhibit LSP-mediated extraordinary-optical transmission (EOT) spectrally coincident with the squeezed light source at 795 nm. We demonstrate that quantum noise reduction as a function of transmission is found to match closely with linear attenuation models, thus demonstrating that the photon-LSP-photon transduction process is coherent near the LSP resonance.