Our DLC(Diamond-Like Carbon) coating can withstand high and low temperature, humidity, salt spray etc test. And the surface fringe is consistent before and after substrate coating, the coating layer uniformity is very good!

Substrate: Germanium(Ge) --- AR Coating --- Tavg:≥98%@3000-5000nm

Substrate: Germanium(Ge) --- AR Coating --- Tavg:≥98.5%@8000-12000nm

Substrate: Germanium(Ge) --- AR Coating --- Tavg:≥96%@4000-12000nm

Substrate: Silicon(Si) --- AR Coating --- Tavg:≥98%@3000-5000nm

Substrate: Germanium(Ge) --- AR&DLC Coating --- Tavg:≥94%@8000-12000nm

Substrate: Silicon(Si) --- AR&DLC Coating --- Tavg:≥96%@3000-5000nm