TY - JOUR
AU1 - Sitnikova, V. E.
AU2 - Dunaev, A. A.
AU3 - Mamalimov, R. I.
AU4 - Pakhomov, P. M.
AU5 - Khizhnyak, S. D.
AU6 - Chmel, A. E.
AB - The Fourier IR reflection spectra of ZnSe ceramics prepared by hot pressing (HP), physical vapor deposition (PVD), and PVD combined with hot isostatic pressing (HIP) are presented. The optical constants of polished and dry-ground specimens were used for comparison. The grinding treatment simulated the erosion of the outer surface of optical elements made of zinc selenide under the influence of solid dust particles and deposits. In the polished specimens residual stresses showed up in the IR reflection spectra of the ZnSePVD and ZnSeHIP ceramics, which had well-defined orientation of grains, but were not present in the spectra of the ZnSeHIP ceramics as a result of mutual compensation of the stresses in the randomly oriented grains of the material. The stresses, which appeared as a shift of the absorption bands calculated by the Kramers–Kronig method, increased significantly after abrasive treatment of the specimens. For all the treated ceramics the intensity of the absorption bands resulting from the anharmonicity of the vibrations in the distorted crystal lattice increased by several times. The last effect also depends on the production prehistory of the ceramics.
TI - Manifestation of Crystal Lattice Distortions in the IR Reflection Spectra of Abrasion-Treated ZnSe Ceramics
JF - Journal of Applied Spectroscopy
DO - 10.1007/s10812-017-0499-y
DA - 2017-07-01
UR - https://www.deepdyve.com/lp/springer-journals/manifestation-of-crystal-lattice-distortions-in-the-ir-reflection-feszJH40D0
SP - 501
EP - 504
VL - 84
IS - 3
DP - DeepDyve
ER -