Microcavity-coupled emitters in hexagonal boron nitride

Nicholas V. Proscia, Harishankar Jayakumar, Xiaochen Ge, Gabriel Lopez-Morales, Zav Shotan, Weidong Zhou, Carlos A. Meriles, Vinod M. Menon

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Integration of quantum emitters in photonic structures is an important step in the broader quest to generate and manipulate on-demand single photons via compact solid-state devices. Unfortunately, implementations relying on material platforms that also serve as the emitter host often suffer from a tradeoff between the desired emitter properties and the photonic system practicality and performance. Here, we demonstrate "pick and place"integration of a Si3N4 microdisk optical resonator with a bright emitter host in the form of ∼20-nm-thick hexagonal boron nitride (hBN). The film folds around the microdisk maximizing contact to ultimately form a hybrid hBN/Si3N4 structure. The local strain that develops in the hBN film at the resonator circumference deterministically activates a low density of defect emitters within the whispering gallery mode volume of the microdisk. These conditions allow us to demonstrate cavity-mediated out-coupling of emission from defect states in hBN through the microdisk cavity modes. Our results pave the route toward the development of chip-scale quantum photonic circuits with independent emitter/resonator optimization for active and passive functionalities.

Original languageEnglish (US)
Pages (from-to)2937-2944
Number of pages8
JournalNanophotonics
Volume9
Issue number9
DOIs
StatePublished - Sep 1 2020

Bibliographical note

Funding Information:
We thank Dr. Daniela Pagliero and Dr. Jacob Henshaw for technical assistance with part of the instrumentation used. N.V.P., G.L.M., and V.M.M. acknowledge support from the NSF ECCS-1906096 and the NSF EFRI 2-DARE program (EFMA -1542863). H.J., G.L.M., and C.A.M acknowledge support from the National Science Foundation through grants NSF-1619896, NSF-1726573, and from Research Corporation for Science Advancement through a FRED Award. All authors acknowledge support from and access to the infrastructure provided by the NSF CREST IDEALS (NSF-1547830) and the CUNY-ASRC Nanofabrication Facility.

Publisher Copyright:
© 2020 Nicholas V. Proscia et al., published by De Gruyter, Berlin/Boston 2020.

Keywords

  • 2D materials
  • Color center
  • Hexagonal boron nitride
  • Microcavities
  • Quantum emission
  • Strain

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