Zobrazeno 1 - 10
of 146
pro vyhledávání: '"A. I. Ryskin"'
Publikováno v:
Materials, Vol 5, Iss 5, Pp 784-817 (2012)
Monocrystalline cadmium fluoride is a dielectric solid that can be converted into a semiconductor by doping with donor impurities and subsequent heating in the reduction atmosphere. For two donor elements, Ga and In, the donor (“shallow”) state i
Externí odkaz:
https://doaj.org/article/b013c7b8d00246a8913eb1f465504aed
Autor:
I. Kudryavtseva, E. Shablonin, Aleksandr Lushchik, Aleksandr I. Ryskin, Aleksandr E. Angervaks, Nicolai T. Bagraev
Publikováno v:
Solid State Ionics. 323:136-141
The fast quenching of CaF2 crystals preheated up to 1000 °C allows to stabilize the high-temperature disordering of anion sublattice typical for the superionic state of the crystal. Such procedure results in the formation of structured ultraviolet t
Autor:
V. A. Granovskii, R. A. Okun, Doan Van Bac, A. E. Angervaks, K. S. Gorokhovskii, Nikolay Nikonorov, S. A. Ivanov, A. I. Ryskin
Publikováno v:
Optics and Spectroscopy. 123:970-976
A technology for multivalued holographic measurement of a plane angle—a holographic prism, which serves as the basis for a device for calibrating the testing tools for navigational equipment under rolling— has been developed. The holographic pris
Autor:
Aleksandr E. Angervaks, Evgeni Vasil'chenko, Pavel P. Fedorov, Nicolai T. Bagraev, I. Kudryavtseva, Aleksandr I. Ryskin, Aleksandr Lushchik
Publikováno v:
Journal of Fluorine Chemistry. 200:109-114
The superionic state of crystals with the fluorite structure caused by disordering of anion sublattice is accompanied by the formation of short-lived clusters due to the correlation between anti-Frenkel defects at the increase of their concentration.
Autor:
I. Kudryavtseva, Evgeni Vasil'chenko, Aleksandr E. Angervaks, Maksim V. Stolyarchuk, Miсhail E. Generalov, Aleksandr Lushchik, A. I. Ryskin, Pavel P. Fedorov
Publikováno v:
Journal of Fluorine Chemistry. 240:109654
The absorption spectrum of splinted samples of dark purple fluorite of Kent deposit, Kazakhstan and its evolution at the heating of mineral samples was studied. Along with a strong band related to calcium colloids there are spectral bands connected w
Autor:
V. A. Granovskii, Van Bak Doan, K. S. Gorokhovsky, S. A. Ivanov, R. A. Okun, Nikolay Nikonorov, A. I. Ryskin, Aleksandr E. Angervaks
Publikováno v:
Optical Fabrication, Testing, and Metrology VI.
The paper is aimed at the development of multi-valued holographic plane angle measure, so called, holographic prism. The holographic prism serves as a base of a device for calibration of equipment (swinging platforms) for navigation apparatus test on
Publikováno v:
Nanophotonics VII.
The article is devoted to the spectral analysis of volume holograms recorded in materials with diffusion-based formation mechanisms. Two media of different nature were examined: polymer material with photosensitive macromolecules (PQ-PMMA) and additi
Autor:
Aleksandr I. Ryskin, Aleksandr S. Shcheulin, Viktor Zakharov, Pavel P. Fedorov, Aleksandr E. Angervaks, Andrey V. Veniaminov
Publikováno v:
Optical Materials. 47:190-195
The structurization of holographic planes in holograms recorded in CaF 2 crystal with color centers was found. It is apparent in the formation of spiral bundles, which pierce the holographic planes. It testifies to the self-organization process of co
Publikováno v:
International Journal of Thermophysics. 36:2452-2461
Photothermal effects in a holographic medium of calcium fluoride crystals with color centers $$(\hbox {CaF}_{2})$$ are discussed. It is shown that photochromism of this crystal makes it possible to record volume holograms within its volume and to cha
Publikováno v:
Optics and Spectroscopy. 118:542-546
Photothermal transformations of color centers in additively colored calcium fluoride crystals and in a colored crystal with a recorded hologram have been investigated. It is shown that the absorption spectrum of a colored crystal can be reconstructed