Determination of the Surface Plasmon Polariton Extraction Efficiency from a Self-Assembled Plasmonic Crystal

Hugo Frederich (1) , Fangfang Wen , Julien Laverdant (1, 2) , Willy Daney De Marcillac , Catherine Schwob (1) , Laurent Coolen (1) , Agnès Maître (1)

1 INSP - Institut des Nanosciences de Paris
2 ILM - Institut Lumière Matière [Villeurbanne]

We experimentally measure and analytically describe the fluorescence enhancement obtained by depositing CdSe/CdS nanocrystals onto a gold plasmonic crystal, a two-dimensional grating of macroscopic size obtained by gold deposition on a self-assembled opal. We show evidences of nanocrystals near-field coupling to the gold surface plasmon polaritons (SPP) followed by grating-induced SPP reemission to far-field. We develop a theoretical framework and an original method in order to evaluate, from photoluminescence experiments, the SPP extraction efficiency of a grating.

Mots clés: Surface plasmon polaritons; Extraction efficiency; Fluorescent semiconductor nanocrystals; Photoluminescence enhancement; Self-assembled grating

Domaines: Matière Condensée [cond-mat]

Hugo Frederich, Fangfang Wen, Julien Laverdant, Willy Daney De Marcillac, Catherine Schwob, et al.. Determination of the Surface Plasmon Polariton Extraction Efficiency from a Self-Assembled Plasmonic Crystal. Plasmonics, 2014, 9 (4), pp.917-924. ⟨10.1007/s11468-014-9697-0⟩. ⟨hal-01236753⟩