Deterministic radiative coupling between plasmonic nanoantennas and semiconducting nanowire quantum dots
Optics
2016-11-29 v1 Other Condensed Matter
Abstract
We report on the deterministic coupling between single semiconducting nanowire quantum dots emitting in the visible and plasmonic Au nanoantennas. Both systems are separately carefully characterized through microphotoluminescence and cathodoluminescence. A two-step realignment process using cathodoluminescence allows for electron beam lithography of Au antennas near individual nanowire quantum dots with a precision of 50 nm. A complete set of optical properties are measured before and after antenna fabrication. They evidence both an increase of the NW absorption, and an improvement of the quantum dot emission rate up to a factor two in presence of the antenna.
Cite
@article{arxiv.1604.01736,
title = {Deterministic radiative coupling between plasmonic nanoantennas and semiconducting nanowire quantum dots},
author = {Mathieu Jeannin and Pamela Rueda-Fonseca and Edith Bellet-Amalric and Kuntheak Kheng and Gilles Nogues},
journal= {arXiv preprint arXiv:1604.01736},
year = {2016}
}