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用阴极溅射法镀制可见光谱区稳定性的窄带滤光片时,有成效地采用了以二氧化硅为间隔层的二氧化钛层(TiO_2-SiO_2)的方法,来镀制这种膜层的窄带滤光片和长波滤光片,已成为十分现实的问题。这个问题的实质是基于物质的光学性能基础上的。实质上,二氧化钛(金红石)能透到波长5微米,此时它保持很高的折射率[h=2.5或2.4]指标;二氧化硅(玻璃试件的)能透到波长4.5微
In the case of narrow-band filters for the stability of the visible region by the sputtering method, a titanium dioxide layer (TiO 2 -SiO 2) having a silica spacer layer is effectively used to plate the film Narrowband filters and long-wave filters have become a real problem. The essence of this problem is based on the optical properties of matter. In essence, titanium dioxide (rutile) can penetrate to a wavelength of 5 microns while it maintains a high index of refraction [h = 2.5 or 2.4]; silica (glassware) can penetrate to a wavelength of 4.5 microns