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arXiv · 2402.11075

Tailoring Polarization in WSe$_2$ Quantum Emitters through Deterministic Strain Engineering

Athanasios Paralikis·Claudia Piccinini·Abdulmalik A. Madigawa·Pietro Metuh·Luca Vannucci·Niels Gregersen·Battulga Munkhbat
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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 (WSe$_2$) 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 WSe$_2$ emitters producing single photons with a high degree of polarization $(99\pm 4 \%)$ and high purity ($g^{(2)}(0) = 0.030 \pm 0.025$). Our work paves the way for the deterministic integration of TMD-based quantum emitters for future photonic quantum technologies.

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Athanasios Paralikis, Claudia Piccinini, Abdulmalik A. Madigawa, Pietro Metuh, Luca Vannucci, Niels Gregersen, Battulga Munkhbat. 2024-02-16. Tailoring Polarization in WSe$_2$ Quantum Emitters through Deterministic Strain Engineering. https://doi.org/10.1038/s41699-024-00497-2

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