Transformation of high-power laser beam polarization by resonant excitation of surface electromagnetic waves on metallic diffraction gratings

N. N. Golovatyuk; V. M. Manankov; Vladimir N. Okorkov; Vladislav Ya. Panchenko; Boris V. Russkikh; Vladimir N. Seminogov; Victor I. Sokolov; Vladimir P. Yakunin

doi:10.1117/12.171654

1 April 1994 Transformation of high-power laser beam polarization by resonant excitation of surface electromagnetic waves on metallic diffraction gratings

N. N. Golovatyuk, V. M. Manankov, Vladimir N. Okorkov, Vladislav Ya. Panchenko, Boris V. Russkikh, Vladimir N. Seminogov, Victor I. Sokolov, Vladimir P. Yakunin

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Proceedings Volume 2257, Russia National Conference: Industrial Lasers and Laser Material Processing; (1994) https://doi.org/10.1117/12.171654
Event: Industrial Lasers and Laser Material Processing: Russian National Conference, 1993, Shatura, Moscow Region, Russian Federation

Abstract

We report the new method of highly efficient transformation of linear polarized laser beam into another beam, with any required polarization performed by reflection grating. The parameters of this grating were calculated theoretically. The grating converters with a reflectivity of R >= 96% for transformation of linearly polarized CO₂ laser beam into a circular polarized beam have been fabricated. The efficiency of these converters included in a 1.5 kW CO₂ laser technological system for metal cutting is demonstrated.

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N. N. Golovatyuk, V. M. Manankov, Vladimir N. Okorkov, Vladislav Ya. Panchenko, Boris V. Russkikh, Vladimir N. Seminogov, Victor I. Sokolov, and Vladimir P. Yakunin "Transformation of high-power laser beam polarization by resonant excitation of surface electromagnetic waves on metallic diffraction gratings", Proc. SPIE 2257, Russia National Conference: Industrial Lasers and Laser Material Processing, (1 April 1994); https://doi.org/10.1117/12.171654

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KEYWORDS

Polarization

Diffraction gratings

Electromagnetic radiation

Laser cutting

Carbon dioxide lasers

Metals

Laser applications

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