Osipkov, A.S. , Bashkov, V.M., Belyaeva, A.O., Stepanov, R., Mironov, Y.M., Galinovsky, A.L.

Bauman Moscow State Technical University, Moscow, Russian Federation

New Plasma Technologies LLC, Moscow, Russian Federation

IOP Conference Series: Materials Science and Engineering

Volume 74, Issue 1, 2015, Article number 012013

Abstract
This article considers the issue of strengthening of optic materials used in the IR spectrum by deposition of diamond like carbon coatings from separated plasma arc discharge. The report shows results of tests of bare and strengthened optical materials such as BaF2, MgF2, Si, Ge, including the testing of their strength and spectral characteristics. Results for the determination of optical constants for the DLC coatings deposited on substrates of Ge and Si, by using separated plasma, are also presented. Investigations showed that surface hardening of optical materials operable in the IR range, by the deposition of diamond like carbon coating onto their surface, according to this technology, considerably improves operational properties and preserves or improves their optic properties.