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(2)(0)=0.030±0.025). Our work paves the way for the deterministic integration of TMD-based quantum emitters for future photonic quantum technologies.
@article{arxiv.2402.11075,
title = {Tailoring Polarization in WSe$_2$ Quantum Emitters through Deterministic Strain Engineering},
author = {Athanasios Paralikis and Claudia Piccinini and Abdulmalik A. Madigawa and Pietro Metuh and Luca Vannucci and Niels Gregersen and Battulga Munkhbat},
journal= {arXiv preprint arXiv:2402.11075},
year = {2025}
}