Stimulated Raman Adiabatic Passage (STIRAP) as a Route to Achieving Optical Control in Plasmonics

TL;DR

This paper demonstrates how STIRAP can be used to control optical properties in plasmonic hybrid systems, enabling tunable scattering and strong light-matter interactions in core-shell nanowires.

Contribution

It introduces a self-consistent model showing STIRAP's effectiveness in manipulating optical responses of plasmonic quantum emitter ensembles.

Findings

Successful control of scattering efficiency via STIRAP

Observation of Rabi splittings with Fano lineshapes

Enhanced light-matter interactions in hybrid nanostructures

Abstract

Optical properties of ensembles of three-level quantum emitters coupled to plasmonic systems are investigated employing a self-consistent model. It is shown that stimulated Raman adiabatic passage (STIRAP) technique can be successfully adopted to control optical properties of hybrid materials with collective effects present and playing an important role in light-matter interactions. We consider a core-shell nanowire comprised of a silver core and a shell of coupled quantum emitters and utilize STIRAP scheme to control scattering efficiency of such a system in a frequency and spatial dependent manner. After the STIRAP induced population transfer to the final state takes place, the core-shell nanowire exhibits two sets of Rabi splittings with Fano lineshapes indicating strong interactions between two different atomic transitions driven by plasmon near-fields.