Orbitally Resolved Single-Photon Emission from an Individual Atomic Vacancy Center in a Semiconductor

ACS Nano 2026 Open access

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Authors: Gagandeep Singh, Xiaodan Lyu, Bi Qi Chong, Ryan Li Yen Tang, Rejaul Sk, Yande Que, Ranjith Shivajirao, Thasneem Aliyar, Radha Krishnan, Junxiang Jia, Michael S. Fuhrer, Teck Seng Koh
+2 more Weibo Gao, Bent Weber
DOI: 10.1021/acsnano.5c20027
Cited by: 0
References: 56

Abstract

Atomically confined spins are emerging as active components in quantum optoelectronic devices such as quantum bits and sensors. However, interrogating single spins at atomic length scales remains a sizable challenge, limited by diffraction in conventional optics. Here, we show that the highly local excitation provided by injecting energetic charge carriers from the atomically sharp probe of a scanning tunneling microscope can trigger single-photon emission from individual atomic vacancy centers in a layered semiconductor. With an effective spatial resolution of

Fields of Study & Subjects

Semiconductor Quantum Structures and Devices Quantum and electron transport phenomena Quantum optics and atomic interactions

Publication details

Journal / source
ACS Nano
Volume
20
Issue
10
Pages
8525–8532
Publication date
4 March 2026
Language
EN