Hybrid plasmonic nanosystem with controlled position of nanoemitters

TL;DR

This paper demonstrates a method to precisely position quantum dots on silver nanowires using two-photon photopolymerization, enabling controlled plasmonic light emission at specific sites along the nanowire.

Contribution

It introduces a novel technique for controlled placement of nanoemitters on nanowires, enhancing the manipulation of surface plasmon propagation.

Findings

Precise control of quantum dot position affects surface plasmon launching.

Positioning influences light intensity at nanowire ends.

Method enables tailored plasmonic responses.

Abstract

Quantum dots optically excited in close proximity to a silver nanowire can launch nanowire surface plasmons. The challenge related to this promising hybrid system is to control the position of nanoemitters on the nanowire. We report on the use of two-photon photopolymerization process to strategically position quantum dots on nanowires at controlled sites. A parametric study of the distance between the quantum dots and the nanowire extremity shows that precise control of the position of the launching sites enables control of light intensity at the wire end, through surface plasmon propagation.