Coupling spin defects in hexagonal boron nitride to titanium dioxide ring resonators

Autor: Milad Nonahal, Chi Li, Febiana Tjiptoharsono, Lu Ding, Connor Stewart, John Scott, Milos Toth, Son Tung Ha, Mehran Kianinia, Igor Aharonovich
Rok vydání: 2022
Předmět:
Zdroj: Nanoscale. 14(40)
ISSN: 2040-3372
Popis: Spin-dependent optical transitions are attractive for a plethora of applications in quantum technologies. Here we report on utilization of high quality ring resonators fabricated from TiO2 to enhance the emission from negatively charged boron vacancies (VB-) in hexagonal Boron Nitride. We show that the emission from these defects can efficiently couple into the whispering gallery modes of the ring resonators. Optically coupled VB- showed photoluminescence contrast in optically detected magnetic resonance signals from the hybrid coupled devices. Our results demonstrate a practical method for integration of spin defects in 2D materials with dielectric resonators which is a promising platform for quantum technologies.
Databáze: OpenAIRE