V. V. Kononenko, T. V. Kononenko, V. I. Konov, S. M. Pimenov, S. V. Garnov, A. V. Tishchenko, A. M. Prokhorov, A. V. Khomich, “Formation of antireflection microstructures on the surfaces of diamond plates by the laser patterning method”, Kvantovaya Elektronika, 1999, Volume 26, Number 2,Pages <nobr>158

This article is cited in 11 papers

Laser applications and other topics in quantum electronics

Formation of antireflection microstructures on the surfaces of diamond plates by the laser patterning method

V. V. Kononenko^a, T. V. Kononenko^a, V. I. Konov^a, S. M. Pimenov^a, S. V. Garnov^b, A. V. Tishchenko^a, A. M. Prokhorov^a, A. V. Khomich^c

^a Natural Sciences Center at General Physics Institute of RAS, Moscow
^b Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^c Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow

Abstract: A method for producing diamond plates, antireflective in the IR range, was proposed and implemented experimentally. This method involves formation, on the plate surfaces, of a regular relief structure with a period less than the radiation wavelength. The diamond surfaces were microstructured either by patterning with a focused Nd : YAP laser beam (λ = 1078 nm) or by scanning the image of a pattern in a projection system with the aid of an excimer KrF laser (λ = 248 nm). The shortest period of the resultant structures, consisting of a system of grooves or craters, was 3 μm. A study was made of the influence of the depth of the resultant structures on the transmission coefficient of a diamond plate. An increase in the transmission at the 10.6 μm wavelength amounted to 10% for a plate treated on both sides and the antireflection effect was then observed in a wide spectral range (10 — 20 μm).

PACS: 81.65.Cf, 78.66.Db, 42.79.Dj

Received: 30.10.1998