Cathodoluminescence monitoring of quantum emitter activation in hexagonal boron nitride - Archive ouverte HAL Access content directly
Journal Articles Applied Physics Letters Year : 2022

Cathodoluminescence monitoring of quantum emitter activation in hexagonal boron nitride

Abstract

The ability to locally activate or generate quantum emitters in two-dimensional materials is of major interest for the realization of integrated quantum photonic devices. In particular, hexagonal boron nitride (hBN) has recently been shown to allow a variety of techniques for obtaining quantum emitters at desired locations. Here, we use cathodoluminescence (CL) to monitor in situ the local activation of color centers by an electron beam in hBN. We observe that the CL signal saturates at a given surface dose, independently of the electron current density. Based on photoluminescence and photon correlations, we show that the number of photoactive color centers is proportional to the CL signal, and we estimate the maximum density of quantum emitters that can be generated by our technique. Our results provide insight about the activation mechanism and could help to optimize the controlled generation of single photon sources in hexagonal boron nitride.
Fichier principal
Vignette du fichier
Main text.pdf (6.09 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03837546 , version 1 (02-11-2022)

Identifiers

Cite

Sébastien Roux, Clarisse Fournier, Kenji Watanabe, Takashi Taniguchi, Jean-Pierre Hermier, et al.. Cathodoluminescence monitoring of quantum emitter activation in hexagonal boron nitride. Applied Physics Letters, 2022, 121 (18), pp.184002. ⟨10.1063/5.0126357⟩. ⟨hal-03837546⟩
14 View
14 Download

Altmetric

Share

Gmail Facebook X LinkedIn More