Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Stella L, Korableva"'
Publikováno v:
Ceramics, Vol 7, Iss 1, Pp 276-290 (2024)
In this work, the physical characterization of LiGdxY1−xF4 (x = 0.05, 0.3, 0.7, and 1.0) and LiGdF4:Eu3+ microparticles was performed. The distribution coefficient of LiGdxY1−xF4 (x = 0.05) was determined for the first time (0.84). Based on kinet
Externí odkaz:
https://doaj.org/article/932256e7c6664938b63842504baf1872
Publikováno v:
Photonics, Vol 11, Iss 6, p 577 (2024)
YF3: (Eu3+, Nd3+) nanoparticles (orthorhombic phase, D~130 nm) were synthesized via the co-precipitation method, with subsequent hydrothermal treatment and annealing. The Eu3+ τdecay linearly descends with the increase of temperature in the 80–320
Externí odkaz:
https://doaj.org/article/8c58b1c82ff94a9c826e795a53c5db55
Autor:
Gennady A. Komandin, Sergey P. Lebedev, Stella L. Korableva, Oleg A. Morozov, Vladimir M. Kyashkin, Vadim V. Semashko, Pavel P. Fedorov
Publikováno v:
Photonics, Vol 10, Iss 1, p 84 (2023)
The basic mechanisms of absorption of THz range radiation in optically perfect LiGdF4 single crystals were studied using the broadband experimental data and the dielectric response function analysis within the harmonic oscillator model. The polarized
Externí odkaz:
https://doaj.org/article/82474a05b8cd4852bf2262f9514d0ff6
Autor:
Oleg A. Morozov, Stella L. Korableva, Rafail M. Rakhmatullin, Amir R. Khadiev, Airat G. Kiiamov, Mikhail A. Cherosov, Maksim S. Pudovkin, Marat R. Gafurov
Publikováno v:
Coatings; Volume 12; Issue 12; Pages: 1879
In this paper, we report the synthesis, characterization, and optical properties of core-shell CeO2/CeF3 nanoparticles. Fabrication of these composite nanoparticles was carried out by fluorination of CeO2 nanoparticles with tetrafluoroethane R-134a g
Autor:
A. G. Kiyamov, Maxim Pudovkin, Alexey S. Nizamutdinov, E.I. Madirov, E. V. Lukinova, D. D. Andreeva, Stella L. Korableva, Vadim V. Semashko
Publikováno v:
Journal of Applied Spectroscopy. 87:481-487
Crystalline nanoparticles of Y0.5–xCe0.5TbxF3, doped with various concentrations (x = 0, 0.005, 0.01, 0.05, 0.1, 0.15, and 0.2) of Tb3+ ions were synthesized by co-precipitation. The crystal structure and chemical composition of nanoparticles were
Autor:
Oleg A. Morozov, Stella L. Korableva, Larisa A. Nurtdinova, Vladimir M. Kyashkin, Pavel A. Popov, Alexander E. Klimovitskii, Maksim S. Pudovkin, Vadim V. Semashko
Publikováno v:
Optical Materials. 137:113490
Publikováno v:
Physics of the Solid State. 61:840-843
The fluorescence intensities ratio (FIR) method is applied for measuring the temperature inside the luminescent LiY0.8Yb0.2F4:Tm3+ crystal. The obtained results are used for monitoring of the sample temperature in the experiment when the exciting rad
Autor:
N.F. Rakhimov, A A Shavelev, O.A. Morozov, E. V. Lukinova, M. A. Marisov, E.I. Madirov, Alexey S. Nizamutdinov, Vadim V. Semashko, Stella L. Korableva, A.A. Shakirov
Publikováno v:
Physics of the Solid State. 61:742-746
Fluoride crystals with the colquiriite structure LiCaAlF6 doped with Ce3+ ions are used as active media for lasers of ultraviolet spectral range with advantages of laser wavelength tuning range and no photoinduced degradation of laser properties. In
Autor:
A.S. Yasukevich, O. S. Morozov, Stella L. Korableva, N.V. Gusakova, Alexey S. Nizamutdinov, Alexey Kornienko, Viktor Kisel, N. V. Kuleshov, Elena Dunina, Vadim V. Semashko, M.P. Demesh
Publikováno v:
Journal of Applied Spectroscopy. 86:220-225
Lasing and spectroscopic properties of an LiY0.3Lu0.7F4:Pr3+ crystal grown by the Bridgman–Stockbarger method were investigated in detail. Absorption and luminescence spectra were recorded using polarized light. Lifetimes of excited states 3PJ were
Autor:
Stella L. Korableva, M. S. Pudovkin, E. V. Lukinova, Vadim V. Semashko, D. A. Koryakovtseva, R. Sh. Khusnutdinova, Alexey S. Nizamutdinov, Airat Kiiamov
Publikováno v:
Journal of Nanomaterials, Vol 2019 (2019)
A set of Pr3+:LaF3 nanoparticles (NPs) were synthesized via coprecipitation method at three stoichiometric proportions of La(NO3)3, Pr(NO3)3, and NaF (1 : 0.8, 1 : 1, and 1 : 6, respectively). Two ways of mixing of the La(NO3)3, Pr(NO3)3, and NaF sol