In the context of quantum technologies, the generation and manipulation of single photons
has become a key element for applications such as quantum communication and quantum …

Rapid progress in the development of metamaterials and metaphotonics allowed bulky
optical assemblies to be replaced with thin nanostructured films, often called metasurfaces …

Lead halide perovskites (LHPs) in the form of nanometre-sized colloidal crystals, or
nanocrystals (NCs), have attracted the attention of diverse materials scientists due to their …

Diamond photonics is an ever-growing field of research driven by the prospects of
harnessing diamond and its colour centres as suitable hardware for solid-state quantum …

Single-photon emitters play an important role in many leading quantum technologies. There
is still no'ideal'on-demand single-photon emitter, but a plethora of promising material …

Solid-state single spins are promising resources for quantum sensing, quantum-information
processing and quantum networks, because they are compatible with scalable quantum …

Attaining pure single-photon emission is key for many quantum technologies, from optical
quantum computing to quantum key distribution and quantum imaging. The past 20 years …

Crystal structure imperfections in solids often act as efficient carrier trap** centres, which,
when suitably isolated, act as sources of single photon emission. The best known examples …

The nitrogen-vacancy (NV) center in diamond is a solid-state defect qubit with favorable
coherence time up to room temperature, which could be harnessed in several quantum …

To date, quantum sources in the ultraviolet (UV) spectral region have been obtained only in
semiconductor quantum dots. Color centers in wide bandgap materials may represent a …