Purcell-enhanced emission from individual SiV− center in nanodiamonds coupled to a Si3N4-based, photonic crystal cavity oleh Fehler Konstantin G., Ovvyan Anna P., Antoniuk Lukas, Lettner Niklas, Gruhler Nico, Davydov Valery A., Agafonov Viatcheslav N., Pernice Wolfram H.P., Kubanek Alexander