  In the realm of quantum information and sensing, there has been substantial
interest in the single-photon emission associated with defects in hexagonal
boron nitride (hBN). With the goal of producing deterministic emission centers,
in this work, we present a platform for engineering emission in hBN integrated
with gold truncated nanocone structures. Our findings highlights that, the
activation of emission is due to the truncated gold nanocones. Furthermore, we
measure the quantum characteristics of this emission and find that while our
system demonstrates support for single-photon emission, the origin of this
emission remains ambiguous. Specifically, it is unclear whether the emission
arises from defects generated by the induced strain or from alternative defect
mechanisms. This uncertainty stems from the fluorescence properties inherent to
gold, complicating our definitive attribution of the quantum emission source.
To provide a rigorous theoretical foundation, we elucidate the effects of
strain via the Kirchhoff-Love theory. Additionally, the enhancements observed
due to plasmonic effects are comprehensively explained through the resolution
of Maxwell's equations. This study will be useful for the development of
deterministic and tunable single photonic sources in two dimensional materials
and their integration with plasmonic platforms.
