Laser Stealth Properties for SiO2 Hollow Spheres with a Layer of Copper

摘要

A kind of SiO2 hollow spheres with a layer of copper cladding have been prepared using the electroless copper plating metal processing technology on the surface of core material.We Study the effects of the process parameters on the properties of materials,and measure spectral reflectance for the SiO2 hollow spheres with the surface modification.The results show that the reflectance is about 4％ for the wavelength of 1.06μ m and is about 0.44％ for 10.6μm wavelength.This compound hollow sphere structures can be act as laser camouflage materials.