Stark Effect of Blue Quantum Emitters in Hexagonal Boron Nitride

Autor: Ivan Zhigulin, Jake Horder, Viktor Ivády, Simon J.U. White, Angus Gale, Chi Li, Charlene J. Lobo, Milos Toth, Igor Aharonovich, Mehran Kianinia
Rok vydání: 2023
Předmět:
Zdroj: Physical Review Applied. 19
ISSN: 2331-7019
Popis: Inhomogeneous broadening is a major limitation for the application of quantum emitters in hexagonal boron nitride to integrated quantum photonics. Here we demonstrate that so-called blue emitters with an emission wavelength of 436 nm are less sensitive to electric fields than other quantum emitters in hexagonal boron nitride. Our measurements reveal a weak, predominantly quadratic Stark effect that indicates a negligible transition dipole moment of the defect. Using these results, we discuss implications for the symmetry of the defect and use density-functional-theory simulations to identify a likely atomic structure of blue emitters in hexagonal boron nitride.
Databáze: OpenAIRE