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