# Fluorescence coupling to plasmonic nanoparticles

## TL;DR

This paper investigates how the controlled placement of metal nanoparticles influences the fluorescence properties of quantum dots, revealing polarization-dependent coupling effects through experimental and simulated analysis.

## Contribution

It demonstrates the ability to analyze and understand polarization-dependent fluorescence coupling between metal nanoparticles and quantum dots using controlled spatial arrangements.

## Key findings

- Fluorescence spectrum modifications observed
- Lifetime changes correlated with nanoparticle coupling
- Good agreement between experimental results and simulations

## Abstract

The combination of single photon emitters (quantum dots) and tailored metal nanoparticles with defined size and shape allows a detailed study of the interaction between light and matter. The enhanced optical near-field of the nanoparticles can strongly influence the absorption and emission of nearby fluorescent quantum dots. We show that a controlled spatial arrangement enables the analysis and understanding of polarization dependent coupling between a metal nanoparticle and few or single fluorescent quantum dots. Modifications in the fluorescence spectrum and lifetime are analyzed and compare well with simulations.

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Source: https://tomesphere.com/paper/1704.06023