An experimental evidence of subwavelength imaging with a "lens", which is a uniaxial negative permittivity wire medium slab, is reported. The slab is formed by gratings of long thin parallel conducting cylinders. Taking into account the anisotropy and spatial dispersion in the wire medium we theoretically show that there are no usual plasmons that could be exited on surfaces of such a slab, and there is no resonant enhancement of evanescent fields in the slab. The experimentally observed clear improvement of the resolution in the presence of the slab is explained as filtering out the harmonics with small wavenumbers. In other words, the wire gratings (the wire medium) suppress strong traveling-mode components increasing the role of evanescent waves in the image formation. This effect can be used in near-field imaging and detection applications.

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An increase in the durability and reliability of the technological equipment and tools with regard to economic and environmental factors is directly related to the tribological properties of coupling details (wear resistance, coefficient of friction, seizure, etc.). The problem can be solved only through the deep and science-based approaches, one of which should be considered is surface engineering. The article discusses the use of the hybrid technology of the surface synthesis of nanostructured composite polimer-ceramics coatings to manufacture face seals of high-precision durable, low-torque and fast-running mechanisms.