NbSiN films are deposited on glass substrates with radio frequency(RF)magnetron sputtering method by taking Nb and Si as targets.The effects of powers of silicon target and niobium target,flow rate of nitrogen and sputtering time on optical properties of films are studied,and the optimal preparation process paremeters are obtained.The test results show that the films are uniformly and compactly deposited under the optimal process paremeters,which mainly compose of NbN,NbSiN,amorphous Si3N4,and little SiO2 a...