Engineering and Technologynpj 2D Materials and Applications

Tailoring polarization in WSe₂ quantum emitters through deterministic strain engineering

A. Paralikis, C. Piccinini, et al.

This groundbreaking research by Athanasios Paralikis, Claudia Piccinini, Abdulmalik A. Madigawa, Pietro Metuh, Luca Vannucci, Niels Gregersen, and Battulga Munkhbat reveals a deterministic technique for controlling the polarization of quantum emitters in WSe₂ monolayers. The team achieved an impressive 99% polarization and low purity fluctuation, paving the way for enhanced quantum technologies.... show more

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Abstract

Quantum emitters in transition metal dichalcogenides (TMDs) have recently emerged as a promising platform for generating single photons for optical quantum information processing. In this work, we present an approach for deterministically controlling the polarization of fabricated quantum emitters in a tungsten diselenide (WSe₂) monolayer. We employ novel nanopillar geometries with long and sharp tips to induce a controlled directional strain in the monolayer, and we report on fabricated WSe₂ emitters producing single photons with a high degree of polarization (99 ± 4%) and high purity (g(0) = 0.030 ± 0.025). Our work paves the way for the deterministic integration of TMD-based quantum emitters for future photonic quantum technologies.

Publisher

npj 2D Materials and Applications

Published On

Sep 11, 2024

Authors

Athanasios Paralikis, Claudia Piccinini, Abdulmalik A. Madigawa, Pietro Metuh, Luca Vannucci, Niels Gregersen, Battulga Munkhbat

DOI

https://doi.org/10.1038/s41699-024-00497-2

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