It showed that the porous film had higher transmittance in infrared wavelength region, and the film with metal micro-particles had an optical adsorbing characteristics in the visible light wavelength region.

• 结果表明：多孔氧化铝介质膜在红外波段具有良好的光透过特性，而沉积金属微粒的多孔介质膜在可见光波范围有特殊的光吸收特性，在近红外光波范围具有一定的偏光特性。