CVD diamond transmissive diffractive optics for CO2 lasers

Vitali I. Konov; V. V. Kononenko; Sergej M. Pimenov; Alexander M. Prokhorov; Vladimir S. Pavelyev; Victor A. Soifer

doi:10.1117/12.364213

20 September 1999 CVD diamond transmissive diffractive optics for CO₂ lasers

Vitali I. Konov, V. V. Kononenko, Sergej M. Pimenov, Alexander M. Prokhorov, Vladimir S. Pavelyev, Victor A. Soifer

Proceedings Volume 3822, Computer-Controlled Microshaping; (1999) https://doi.org/10.1117/12.364213
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany

Abstract

Growing applications of CO₂-lasers in many cases demand transmission optical elements (widows, lenses, etc.) which could reliably operate at high beam powers. In the present work we propose to produce CVD diamond transmissive diffractive optics. To realize this idea surface microstructuring by laser ablation was applied. Computer controlled selected area ablation of preliminary polished (plane) diamond plates with thickness of 0.3 mm was performed by scanning focused beam of KrF laser. As a test sample for radiation with (lambda) equals 10.6 micrometers a cylindrical lens with the aperture of 4 X 4 mm² and focal length of 25 mm was produced. Numerical simulation of the lens was made for the fundamental mode TEM₀₀. For tests of the diamond lens 20 W CO₂ laser was used.

Citation Download Citation

Vitali I. Konov, V. V. Kononenko, Sergej M. Pimenov, Alexander M. Prokhorov, Vladimir S. Pavelyev, and Victor A. Soifer "CVD diamond transmissive diffractive optics for CO₂ lasers", Proc. SPIE 3822, Computer-Controlled Microshaping, (20 September 1999); https://doi.org/10.1117/12.364213

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