Numerical Optimization of the Lifetime and Quantum Yield of LiYF4:Pr³⁺ Nanocrystals

authored by

Simon Spelthann, Jonas Thiem, Oliver Melchert, Rajesh Komban, Michael Steinke, Christoph Gimmler, Ayhan Demircan, Axel Ruehl, Detlev Ristau

Abstract

Lanthanide nanoparticles offer potential in nanoscale photonics due to their high lifetime and quantum yield. However, surface quenching degrades these properties, requiring time-consuming experimental optimization. Here, we present a versatile Monte-Carlo approach that accurately predicts the lifetimes and quantum yields of lanthanide nanoparticles. Based on a Bayesian optimization algorithm, we optimize the geometry and doping concentration of nanocrystals resulting in simulated quantum yields of >60% and lifetimes of >30µs. This approach saves 95 % time compared to experimental methods and holds promise for applications such as nanoparticle lasers or quantum memories.

Organisation(s)

PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Institute of Quantum Optics
QUEST-Leibniz Research School

External Organisation(s)

Fraunhofer Center for Applied Nanotechnology (CAN)

Type

Conference contribution

Publication date

13.03.2024

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Biomaterials, Radiology Nuclear Medicine and imaging

Electronic version(s)

https://doi.org/10.1117/12.3000339 (Access: Closed)