Broadband antireflective composite coating: effect of pulsed laser treatment on optical properties

Abstract

The developed method of laser processing for the formation of antireflective coatings based on composite materials created by filling an epoxy polymer with multi-walled carbon nanotubes is demonstrated,The effect of surface profiling of composite materials by pulsed laser processing on reflectivity in the UV, visible, near and mid-IR wavelength ranges is studied. The possibility of creating composite structures with a low reflectivity in the range of 0.2 –25 μm, corresponding to the requirements for antireflective coatings of optical and optoelectronic systems of spacecraft and ground-based systems is demonstrated.