Controlling spontaneous emission with plasmonic optical patch antennas
Quantum Physics
2015-10-28 v1 Other Condensed Matter
Optics
Abstract
We experimentally demonstrate the control of the spontaneous emission rate and the radiation pattern of colloidal quantum dots deterministically positioned in a plasmonic patch antenna. The antenna consists of a thin gold microdisk 30 nm above a thick gold layer. The emitters are shown to radiate through the entire patch antenna in a highly directional and vertical radiation pattern. Strong acceleration of spontaneous emission is observed, depending of the antenna size. Considering the double dipole structure of the emitters, this corresponds to a Purcell factor up to 80 for dipoles perpendicular to the disk.
Keywords
Cite
@article{arxiv.1209.6566,
title = {Controlling spontaneous emission with plasmonic optical patch antennas},
author = {C. Belacel and B. Habert and F. Bigourdan and F. Marquier and J. -P. Hugonin and S. Michaelis de Vasconcellos and X. Lafosse and L. Coolen and C. Schwob and C. Javaux and B. Dubertret and J. -J. Greffet and P. Senellart and A. Maitre},
journal= {arXiv preprint arXiv:1209.6566},
year = {2015}
}