Nanodiamonds carrying silicon-vacancy quantum emitters with almost lifetime-limited linewidths oleh Uwe Jantzen, Andrea B Kurz, Daniel S Rudnicki, Clemens Schäfermeier, Kay D Jahnke, Ulrik L Andersen, Valery A Davydov, Viatcheslav N Agafonov, Alexander Kubanek, Lachlan J Rogers, Fedor Jelezko