P4.3 - Measuring apparatus for determinate absorption of the thin-film coatings by the photothermal method

Galyna A. Petrovska, Igor V. Demkovych & Yaroslav V. Bobitski
The optical elements of high-power lasers and lasers systems must have the limiting low absorption so as heat that appears at the absorption produces the thermal deformations of the surfaces of the optical elements; change the spatial, energy and spectral parameters of emission and destruction of the optics. The problems that are connected with production of the high-quality laser optics expect to the creation of the highly sensitive nondestructive testing methods of absorption in the...
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