Proceedings of SPIE

Wavelength-resolved Purcell enhancement of PbS/CdS quantum dots measured on a chip-based platform

Conference paper (2020)

Authors

Lukas Elsinger Universiteit Gent

R.B.M. Gourgues Single Quantum

I.Z. Esmaeil Zadeh ImPhys/Optics -

Jorick Maes Universiteit Gent

A. Guardiani Single Quantum

G. Bulgarini Single Quantum

S.F. Pereira ImPhys/Optics -

S.N. Dorenbos Single Quantum

Val Zwiller KTH Royal Institute of Technology

More Authors More Authors External organisation

Research Group

ImPhys/Optics () (TU Delft)

DOI

https://doi.org/10.1117/12.2547265

Colloidal quantum dots Photonic integration Plasmonic antennas Silicon nitride Superconducting nanowire single-photon detectors

More Info

expand_more

To reference this document use:

http://resolver.tudelft.nl/uuid:ca31e188-10d5-48dc-ac1e-dd6ad124338a

Published Date

2020

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

Future quantum optical networks will require an integrated solution to multiplex suitable sources and detectors on a low-loss platform. Here we combined superconducting single-photon detectors with colloidal PbS/CdS quantum dots (QDs) and low-loss silicon nitride passive photonic components to show their combined operation at cryogenic temperatures. Using a planar concave grating spectrometer, we performed wavelength-resolved measurements of the photoluminescence decay of QDs, which were deterministically placed in the gap of plasmonic antennas, in order to improve their emission rate. We observed a Purcell enhancement matching the antenna simulations, with a concurrent increase of the count rate on the superconducting detectors.

Files

1128914.pdf

(.pdf | 5.15 Mb)