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

Milad Nonahal, Chi Li, Febiana Tjiptoharsono, Lu Ding, Connor Stewart, John Scott, Milos Toth, Son Tung Ha, Mehran Kianinia, Igor Aharonovich

Research output: Contribution to journalArticleResearchpeer-review

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)14950-14955
Number of pages6
JournalNanoscale
Volume14
Issue number40
DOIs
Publication statusPublished - 30 Aug 2022
Externally publishedYes

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