Results 141 to 150 of about 649 (177)

Surface Microrelief Influence On Hydrogen Interaction With Materials

2002
The problem of hydrogen isotope recycling in fusion devices is of crucial interest due to two main reasons: the first one is the tritium retention in fusion materials, the second one is the problem of adequate reactor operation at wall fuelling and plasma particles exhaust by PFC [1].
A. V. Golubeva, A. A. Evanov, N. N. Koborov, V. A. Kurnaev, S. S. Levchuk, N. N. Trifonov   +5 more
openaire   +1 more source

Preparation, morphology and physical properties of microrelief InP surfaces

Solar Energy Materials and Solar Cells, 1993
Abstract The morphology of microrelief InP surfaces, prepared by anisotropic chemical etching without masking and the kinetics of this etching were studied. A statistical analysis of surface profiles shows that the surface studied has a Gaussian roughness distribution and the ratio of root-mean-square surface roughness δ to autocorrelation length σ ...
N.L. Dmitruk, T.R. Barlas, E.V. Basiuk
openaire   +1 more source

Diffraction on periodic surface microrelief grating with positive or negative optical anisotropy

Applied Optics, 2020
Diffraction optical elements (DOE) are important elements of systems for images displaying and processing. The DOE materials with both positive and negative birefringence enhance performances and functionality of such systems. We have calculated the diffraction of rays passing through optically anisotropic grating with surface microrelief by using our ...
Victor V. Belyaev, Alexey S. Solomatin, Hakob Margaryan, Nune Hakobyan, Sandeep Kumar, Denis N. Chausov, Andrey A. Belyaev, Alexander G. Smirnov, Artem A. Gorbunov   +8 more
openaire   +3 more sources

A Field Measurement of Total Porosity and Surface Microrelief of Soils

Soil Science Society of America Journal, 1963
Abstract Total porosity of the layer to be plowed was estimated from undisturbed cores collected before primary tillage. Using a point quadrant instrument, soil surface elevation measurements were made before and after preplant tillage, and after each cultivation to determine the effects of tillage on total porosity of the plowed ...
R. E. Burwell, R. R. Allmaras, M. Amemiya   +2 more
openaire   +1 more source

Correlated transformation of the microrelief of the stressed surface of an amorphous alloy

Glass Physics and Chemistry, 2009
Samples of Fe70Cr15B15 and Fe77Ni1Si9B13 amorphous alloy foils are loaded at tensile stresses of 0.2–1.2 GPa under constant strain or constant stress conditions. The submicroscopic profiles of the surface are recorded on a scanning tunneling profilometer.
V. E. Korsukov, P. N. Butenko, A. S. Luk’yanenko, A. E. Chmel   +3 more
openaire   +1 more source

Photoemission of microrelief semiconductor surfaces with semitransparent Au films

Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 1995
In this article the dependence of the photoemission current of microrelief interfaces of Au–GaAs on temperature, intensity of light and bias, and its connection with electrophysical parameters of the structure is analyzed. A detailed analysis of the characteristics of the anomalous photoemission current and the theory of this effect have been carried ...
N. L. Dmitruk, V. G. Litovchenko, S. V. Mamikin   +2 more
openaire   +1 more source

Surface-enhanced photoemission in Schottky diodes with microrelief interfaces

Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 2000
The internal photoemission current of Au–GaAs Schottky barriers with interfaces like a diffraction grating have been investigated. The surface plasmon-polariton excitation is shown to be an additional mechanism that contributes to an increase in the internal photoemission current.
N. L. Dmitruk, S. V. Mamykin
openaire   +1 more source

Surface-enhanced photoemission in the Schottky diodes with microrelief interface

Eleventh International Vacuum Microelectronics Conference. IVMC'98 (Cat. No.98TH8382), 2002
Internal electron photoemission at metal/semiconductor interface can be increased by electrostatic field concentrated on the ledges of surface with large curvature. On the other hand the incident light on the interface of two media with different signs of the dielectric constant can excite the surface plasmon-polariton (SPP) wave with several order ...
N.L. Dmitruk, S.V. Mamykin
openaire   +1 more source

Diffraction of light by surface irregularities and its role in the formation of a periodic surface microrelief

Soviet Journal of Quantum Electronics, 1984
The following quantities were calculated as a function of the surface corrugation period: the difference between the energy evolved in the valleys and at the humps, the amplitudes of a first-order wave diffracted into an absorbing substance, the phase of this wave, the energy absorbed by the substance, and the intensity of the reflected wave.
P V Bazakutsa, V A Sychugov, A M Prokhorov   +2 more
openaire   +1 more source

Microrelief of the Lunar Surface and the Probable Ways of its Formation

Symposium - International Astronomical Union, 1962
Already in the Seventeenth century Galileo Galilei [1] had turned his attention to the peculiarity of the reflection of light from the lunar surface, which consisted of the fact that the disk of the full Moon exhibits no darkening towards the limb. Galilei explained this by assuming that, besides the mountainous macrorelief on the Moon, which could be ...
openaire   +1 more source