Color centers in nanodiamonds (NDs) have been largely explored by
coupling to a photonic structured matrix (PSM) to amplify visible
range emission features, enhancing their use in quantum technologies.
Here, we study the emission enhancement of dual near-infrared zero
phonon line (ZPL) emission from silicon–boron (SiB) and
silicon-vacancy (SiV−) centers in NDs using a spontaneously
emerged low index-contrast quasiperiodic PSM, having micron-scale air
pores. An intensity enhancement factor of 6.15 for SiV− and
7.8 for SiB ZPLs is attained for the PSM sample compared to a control
sample. We find Purcell enhancement of 2.77 times for the PSM sample
using spatial-dependent decay rate measurements, supported by
localized field intensity confinement in the sample. Such cavity-like
emission enhancement and lifetime reduction are enabled by an in-plane
order–disorder scattering in the PSM sample substantiated by
pump-dependent emission measurements. The results put forward a facile
approach to tailor the near-infrared dual ZPL emission from NDs using
nanophotonic structures.