Broadband anti-reflective composite coating: effect of pulsed laser treatment on optical properties
Komarov F. F. 1, Zhukava M. N.1, Milchanin O. V. 1, Lyudchik O. R. 2
1A.N. Sevchenko Institute of Applied Physics Problems, Minsk, Belarus
2Belarusian State University, Minsk, Republic of Belarus
Email: kovarovf@bsu.by, maryliss.lab@gmail.com, milchanin@tut.by, lyudchik@bsu.by

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The developed method of laser treatment for the formation of antireflective coatings on the basis of composite materials created by filling epoxy polymer with multi-walled carbon nanotubes has been demonstrated. The influence of surface structuring of composite materials by pulsed laser treatment on reflectivity in UV-, visible- and IR wavelength ranges (0.2-25 μm) has been investigated. A composite material was created and structures with low reflectance in the specified wavelength range were formed on it. Optical characteristics of such structures meet the standard requirements for anti-reflection coatings of optoelectronic and optical systems of aerospace vehicles. Keywords: multi-walled carbon nanotubes, epoxy polymer, composite material, pulsed laser treatment, structuring, broadband antireflective coatings.
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