GeSbTe (GST225) looks to be a promising material for rewritable memory devices due to its relatively easy processing and high optical and electrophysical contrast for the crystalline and amorphous phases. In the present work, we combined the possibilities of crystallization and anisotropic structures fabrication using femtosecond laser treatment at the 1250 nm wavelength of 200 nm thin amorphous GST225 films on silicon oxide/silicon substrates. A raster treatment mode and photoexcited surface plasmon polariton generation allowed us to produce mutually orthogonal periodic structures, such as scanline tracks (the period is 120 ± 10 μm) and laser-induced gratings (the period is 1100 ± 50 nm), respectively.
View Article and Find Full Text PDFUnlabelled: To date, the internal limiting membrane (ILM), specifically, the side facing the retina, has never been studied by two parallel, mutually complementary methods. This is an attempt to explain favorable results of ILM peeling in various macular pathologies.
Aim: By employing scanning (SEM) and transmission electron microscopy (TEM), to identify morphological features of epiretinal samples removed during vitrectomy in patients with lamellar macular hole (LMH) or epiretinal membrane (ERM).
The main characteristics of retinal blood flow are presented including vessel diameter blood velocity, blood flow, perfusion pressure, indices of vasoresistance. The main methods of eye blood flow and retinal circulation examination are described. Comparative estimation of different techniques for eye haemodynamics examination in patients with diabetes mellitus is presented.
View Article and Find Full Text PDFZh Nevrol Psikhiatr Im S S Korsakova
April 2011
Based on the results of examination of 157 patients with neurotic depression (ICD-10 items F43.20, F43.21, F43.
View Article and Find Full Text PDFAt present, there are no methods for evaluating the physical development of subjects of call-up age, which present problems during recruitment of those who can adequately cope with set problems for armed forces. A large number of conscripts were examined, by using anthropometry, physiometry, the Stange test, and exercise test. A classification system was developed on the basis of mathematical models derived by means of discriminant analysis.
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