Direct imaging of valley-polarized excitons in a van der Waals heterostructure

• DOI: 10.1364/cleo_fs.2023.fw4n.2
• Publication Date: 2023-07-27T12:01:59Z
• Authors: David R. Bacon; Xing Zhu; Vivek Pareek; Ouri Karni; Elyse Barré; Michael K. Man; Julien Madéo; Jenny Hu; Aidan L. O’Beirne; Henrique B. Ribeiro; Tony F. Heinz; Keshav M. Dani

We directly image valley-polarized excitons in a WSe 2 /MoS heterostructure using time- and angle-resolved micro photoemission spectroscopy, before after interlayer exciton formation.