Zobrazeno 1 - 10
of 82
pro vyhledávání: '"A. I. Ignat'ev"'
Autor:
Amir Moussaoui, Dmitry V. Bulyga, Alexander I. Ignat’ev, Sergey K. Evstropiev, Nikolay V. Nikonorov
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 21, Iss 2, Pp 198-205 (2021)
The paper presents the results of the sol-gel synthesis of Gd2O3:Nd3+ nanopowders by the citrate method, as well as the study of their structure and luminescent properties. A technique for using two different organic stabilizers with different therma
Externí odkaz:
https://doaj.org/article/bc5de28dec7744159b678e3c47e7fbf8
Autor:
A. S. Matrosova, N. K. Kuz’menko, S. K. Evstrop’ev, V. A. Aseev, D. P. Danilovich, N. V. Nikonorov, A. I. Ignat’ev, V. V. Demidov, K. V. Dukel’skii
Publikováno v:
Optics and Spectroscopy. 129:662-669
Publikováno v:
Optics and Spectroscopy. 127:508-513
The results of complex action of X-ray and nanosecond UV laser radiation on alkali-containing silicate glasses are presented. It is shown that X-ray irradiation of glasses forms luminescent color centers in them, which is related to increasing concen
Publikováno v:
Optics and Spectroscopy. 123:590-596
The effect of silver on the optical, spectral-luminescent, and crystallization properties of bromide photo-thermo-refractive glasses is studied. Multicomponent photosensitive glasses of the Na2O–ZnO–Al2O3–SiO2 system with photosensitizing agent
Publikováno v:
Technical Physics. 62:270-275
Experiments and numerical simulation show that the irradiation of alkali-containing glasses using electrons at an energy of 35 keV and the subsequent thermal processing at a temperature above the vitrification point lead to the formation of spherical
Autor:
N. I. Ignat’ev, L. V. Zasova, M. Ya. Marov, Oleg Korablev, Mikhail A. Ivanov, M. Gerasimov, Lev Zelenyi, Andrey Georgievich Tuchin
Publikováno v:
Solar System Research. 51:1-19
We discuss a change in the resurfacing regimes of Venus and probable ways of forming the terrain types that make up the surface of the planet. The interpretation of the nature of the terrain types and their morphologic features allows us to character
Publikováno v:
Optics and Spectroscopy. 122:133-138
The formation of silver molecular clusters and nanoparticles in photo-thermo-refractive (PTR) glasses with different antimony contents has been investigated using ion exchange with subsequent thermal treatment. The influence of the antimony oxide (Sb
Autor:
A. I. Ignat’ev, I. S. Tarasov, N. A. Pikhtin, Nikolay Nikonorov, Ya V Lubyanskiy, V. V. Zolotarev, S. A. Ivanov
Publikováno v:
Semiconductors. 50:819-823
The spectral characteristics of a high-power semiconductor laser with an external cavity in which longitudinal-mode selection is implemented by means of a holographic volume Bragg grating recorded in photo-thermo-refractive glass are investigated. Mo
Publikováno v:
Computational Mathematics and Mathematical Physics. 55:1713-1726
A new version of the discrete ordinate method for the calculation of the transfer of monochromatic radiation in a scattering, absorbing, and emitting plane-parallel atmosphere of Earth and other planets is proposed. A feature of this version is that
Publikováno v:
Optics and Spectroscopy. 119:238-242
It is experimentally shown that irradiation of silver-containing glasses by nanosecond laser pulses with a wavelength of 248 nm leads to the formation of unstable point defects (having absorption bands in the UV and visible spectral ranges) in the ir