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Proceedings Paper

Beamsplittering coatings for the polarized C02-laser radiation
Author(s): E. N. Kotlikov; E. V. Khonineva; V. N. Prokashev
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Paper Abstract

Beamsplitter's coatings are used for optic's instrumentation, devices for space research, laser physics, Fourier spectroscopy and many other domains of science and techniques. Their wide application causes the stimulation of investigations in the field of synthesis of new kinds of optical coatings which must have demanded optical properties. There is the special interest to beamsplitter's coatings for different kinds of radiation's polarization. In the present paper it is considered the synthesis and the fabrication of interference coatings, especially for the simultaneous splitting of CO2-laser's polarized radiation in the proportion: 50% of s-polarized radiation to 50% of p-polarized radiation from the initial beam, falling on a coating. We searched the task's stable decision that must satisfy to the demand in the wavelength range 9÷12 &mgr;m. It was found the decision for the coating's structure, in which the refractive index was increasing at first then it was decreasing. We produced and studied beamsplitter's multiplayer coatings on ZnSe substrates. As the result of coating's examination by the polarized CO2-laser radiation, experimental values of transmission coefficients Ts and Tp are equal Ts=Tp=(5O±2)% and have the best concordance with theoretical ones.

Paper Details

Date Published: 12 April 2007
PDF: 6 pages
Proc. SPIE 6611, Laser Optics 2006: High-Power Gas Lasers, 66110N (12 April 2007); doi: 10.1117/12.740724
Show Author Affiliations
E. N. Kotlikov, St. Petersburg State Univ. of Aerospace Instrumentation (Russia)
E. V. Khonineva, St. Petersburg State Univ. of Aerospace Instrumentation (Russia)
V. N. Prokashev, St. Petersburg State Univ. of Aerospace Instrumentation (Russia)

Published in SPIE Proceedings Vol. 6611:
Laser Optics 2006: High-Power Gas Lasers
Oleg B. Danilov, Editor(s)

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