Zobrazeno 1 - 10
of 22
pro vyhledávání: '"N F Kovtonyuk"'
Publikováno v:
Ferroelectrics. 167:249-256
The methods of producing uniform layers of ferroelectric smectic C* liquid crystal and hydrogenated amorphous silicon are described. The results obtained are used for producing output images with spatial light modulators of short switching times. The
Publikováno v:
Critical reviews in biomedical engineering. 29(3)
This article presents the ideology and basic principles of designing diagnostic and therapeutic medical systems for treating malignant tumors by means of photosensitizers. The designed system is based on optoelectronic devices, which realize selectiv
Autor:
N. F. Kovtonyuk
Publikováno v:
Semiconductors. 39:1093
The kinetics of electronic processes in vidicon phototargets based on semiconductor-insulator structures with a narrow-gap semiconductor is considered taking into account charge drain in the insulator layer and relaxation of the nonequilibrium deplet
Publikováno v:
Semiconductors. 39:1290
The kinetics of the electronic processes in metal-insulator-semiconductor structures in which the insulator layer has low conductivity is considered. When a dc bias voltage is applied to such a structure, a nonequilibrium depletion region appears in
Publikováno v:
Journal of Optical Technology. 71:280
This paper discusses the temperature characteristics of signal shapers of infrared images based on metal-insulator-semiconductor structures in the nonequilibrium depletion regime. The possibilities of creating IR phototargets for vidicons sensitive i
Autor:
A. V. Sokolov, N. F. Kovtonyuk
Publikováno v:
Journal of Optical Technology. 70:161
This paper discusses optoelectronic processes in an optical system with two-dimensional feedback, based on a metal-insulator-semiconductor-liquid-crystal structure. The dependence of the diffraction-spreading factor on voltage is obtained, along with
Publikováno v:
Soviet Journal of Quantum Electronics. 14:493-496
An investigation was made of spatial modulation of light in structures formed from an insulated semiconductor and a liquid crystal. It was found that the modulation parameters (sensitivity and resolution) were influenced strongly by the accumulation
Autor:
N. F. Kovtonyuk
Publikováno v:
Journal of Applied Spectroscopy. 26:126-129
Autor:
V. G. Fadin, N. F. Kovtonyuk
Publikováno v:
Journal of Applied Spectroscopy. 18:96-100
Publikováno v:
Soviet Journal of Quantum Electronics. 2:435-438
It was demonstrated experimentally that a metal?insulator?semiconductor?insulator?metal (MISIM) structure based on a high-resistivity semiconductor can be used as a memory with optical write and read operations. The power of the light pulses required