Cathodoluminescence monitoring of quantum emitter activation in hexagonal boron nitride
arXiv:2210.05028 · doi:10.1063/5.0126357
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 insights about the activation mechanism and could help to optimize the controlled generation of single photon sources in hexagonal boron nitride.
References in corpus (2)
Cited by in corpus (11)
- Localized creation of yellow single photon emitting carbon complexes in hexagonal boron nitride
- Quantum Optics Applications of Hexagonal Boron Nitride Defects
- Investigating the fast spectral diffusion of a quantum emitter in hBN using resonant excitation and photon correlations
- Cathodoluminescence monitoring of quantum emitter activation in hexagonal boron nitride
- Top-down integration of a hBN quantum emitter in a monolithic photonic waveguide
- Color Centers in Hexagonal Boron Nitride
- Quantum efficiency and vertical position of quantum emitters in hBN determined by Purcell effect in hybrid metal-dielectric planar photonic structures
- Comparative study of quantum emitter fabrication in wide bandgap materials using localized electron irradiation
- An atlas of photonic and plasmonic materials for cathodoluminescence microscopy
- Photon correlation Fourier spectroscopy of a B center in hBN
- Deterministic generation of single B centers in hBN by one-to-one conversion from UV centers