Paralikis Athanasios, Piccinini Claudia, Madigawa Abdulmalik A, Metuh Pietro, Vannucci Luca, Gregersen Niels, Munkhbat Battulga
Department of Electrical and Photonics Engineering, Technical University of Denmark, Ørsteds Plads, 2800 Kongens Lyngby, Denmark.
NPJ 2D Mater Appl. 2024;8(1):59. doi: 10.1038/s41699-024-00497-2. Epub 2024 Sep 11.
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) 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 emitters producing single photons with a high degree of polarization (99 ± 4%) and high purity ( (0) = 0.030 ± 0.025). Our work paves the way for the deterministic integration of TMD-based quantum emitters for future photonic quantum technologies.
过渡金属二硫属化物（TMDs）中的量子发射器最近已成为用于光学量子信息处理的单光子产生的一个有前景的平台。在这项工作中，我们提出了一种确定性地控制二硒化钨（WSe）单层中制备的量子发射器偏振的方法。我们采用具有长而尖锐尖端的新型纳米柱几何结构，以在单层中诱导可控的定向应变，并且我们报道了制备的WSe发射器产生具有高偏振度（99±4%）和高纯度（(0)=0.030±0.025）的单光子。我们的工作为基于TMD的量子发射器用于未来光子量子技术的确定性集成铺平了道路。
