Beamsplittering coatings for the polarized C0<sub>2</sub>-laser radiation

E. N. Kotlikov; E. V. Khonineva; V. N. Prokashev

doi:10.1117/12.740724

12 April 2007 Beamsplittering coatings for the polarized C0₂-laser radiation

E. N. Kotlikov, E. V. Khonineva, V. N. Prokashev

Proceedings Volume 6611, Laser Optics 2006: High-Power Gas Lasers; 66110N (2007) https://doi.org/10.1117/12.740724
Event: Laser Optics 2006, 2006, St. Petersburg, Russian Federation

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 T_s and T_p are equal T_s=T_p=(5O±2)% and have the best concordance with theoretical ones.

Citation Download Citation

E. N. Kotlikov, E. V. Khonineva, and V. N. Prokashev "Beamsplittering coatings for the polarized C0₂-laser radiation", Proc. SPIE 6611, Laser Optics 2006: High-Power Gas Lasers, 66110N (12 April 2007); https://doi.org/10.1117/12.740724

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