Bright prospects for engineering quantum light

https://phys.org/news/2024-07-bright-prospects-quantum.html

"rather than emitting photon, defect might instead cause atoms to vibrate, reducing light-emission efficiency... efficiency of single-photon emission drastically decreases when emission wavelength increases beyond wavelengths of visible light... to overcome, choosing best host material, conduct atomic-level engineering of vibrational properties, couple to photonic cavity... novel quantum emitters that will power the quantum networks of the future"