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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ruseikina A. V., Grigoriev M. V., Solovyov L. A., Chernyshev V. A., Aleksandrovsky A. S., Krylov A. S., Krylova S. N., Shestakov N. P., Velikanov D. A., Garmonov A. A., Matigorov A. V., Eberle M. A., Schleid T., Safin D. A.
Заглавие : A Challenge toward novel quaternary sulfides SrLnCuS3 (Ln = La, Nd, Tm): Unraveling synthetic pathways, structures and properties
Место публикации : Int. J. Mol. Sci. - 2022. - Vol. 23, Is. 20. - Ст.12438. - ISSN 14220067 (ISSN), DOI 10.3390/ijms232012438
Примечания : Cited References: 62. - The research was funded by the Tyumen Oblast Government, as part of the West-Siberian Interregional Science and Education Center’s project No. 89-DON (3). This work was supported by state assignment of the Ministry of Science and Higher Education of the Russian Federation (Project Reg. No. 720000Φ.99.1.Б385AA13000)
Аннотация: We report on the novel heterometallic quaternary sulfides SrLnCuS3 (Ln = La, Nd, Tm), obtained as both single crystals and powdered samples. The structures of both the single crystal and powdered samples of SrLaCuS3 and SrNdCuS3 belong to the orthorhombic space group Pnma but are of different structural types, while both samples of SrTmCuS3 crystallize in the orthorhombic space group Cmcm with the structural type KZrCuS3. Three-dimensional crystal structures of SrLaCuS3 and SrNdCuS3 are formed from the (Sr/Ln)S7 capped trigonal prisms and CuS4 tetrahedra. In SrLaCuS3, alternating 2D layers are stacked, while the main backbone of the structure of SrNdCuS3 is a polymeric 3D framework [(Sr/Ln)S7]n, strengthened by 1D polymeric chains (CuS4)n with 1D channels, filled by the other Sr2+/Ln3+ cations, which, in turn, form 1D dimeric ribbons. A 3D crystal structure of SrTmCuS3 is constructed from the SrS6 trigonal prisms, TmS6 octahedra and CuS4 tetrahedra. The latter two polyhedra are packed together into 2D layers, which are separated by 1D chains (SrS6)n and 1D free channels. In both crystal structures of SrLaCuS3 obtained in this work, the crystallographic positions of strontium and lanthanum were partially mixed, while only in the structure of SrNdCuS3, solved from the powder X-ray diffraction data, were the crystallographic positions of strontium and neodymium partially mixed. Band gaps of SrLnCuS3 (Ln = La, Nd, Tm) were found to be 1.86, 1.94 and 2.57 eV, respectively. Both SrNdCuS3 and SrTmCuS3 were found to be paramagnetic at 20-300 K, with the experimental magnetic characteristics being in good agreement with the corresponding calculated parameters.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Serzhantov A. M., Leksikov An. A., Bal'va Ya. F., Aleksandrovsky A. S., Galeev R. G
Заглавие : A high-selectivity waveguide bandpass filter with interference suppression by more than 120 dB in rejection band
Колич.характеристики :5 с
Место публикации : Tech. Phys. Lett. - 2023. - Vol. 49, Is. 5. - P.72-76. - ISSN 10637850 (ISSN), DOI 10.21883/TPL.2023.05.56034.19541. - ISSN 10906533 (eISSN)
Примечания : Cited References: 10. - This study was carried out under agreement No. 470 dated August 30, 2022, between the Kirensky Institute of Physics (Siberian Branch, Russian Academy of Sciences), the Regional Science Foundation, and ”AO ”NPP ”Radiosvyaz“ as part of a competitive tender of research-andengineering and innovative projects for the first climatological research and education center ”Yenisey Siberia“
Аннотация: The design of a 10th-order waveguide bandpass filter with an additional inductive cross-coupling between non-adjacent resonators has been proposed and studied. An inductive coupling is formed by a U-shaped conductor structure with grounded ends that is formed in the filter cover. This method of cross-coupling organization ensures not only the temperature stability of the characteristics, but also the manufacturability of the structure. The high selectivity of the device is achieved by both the attenuation poles located near the passband, as well as the level of suppression in the stopbands, exceeding 120 dB. The passband loss of the fabricated filter is ~ 0.8 dB at its central frequency f0=18.2 GHz and relative bandwidth Δf/f0=1.5%. The small dimensions (135 x 30 x 10 mm) and the weight of about 200 g of the device, with simultaneously high electrical characteristics show the promise of its use, for example, in on-board and ground-based space communication systems.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ershov A. A., Oreshonkov A. S., Shestakov N. P., Aleksandrovsky A. S., Vtyurin A. N.
Заглавие : Absorption spectra of PrF3 crystal
Коллективы : Russia-China workshop on dielectric and ferroelectric materials, Российская академия наук, Воронежский государственный технический университет
Место публикации : The Second Rus.-China Workshop on Dielectic and Ferroel. Mater.: program. - 2015. - Ст.P6.3. - P.82: abstract book
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A. S.
Заглавие : Nonlinear optical processes and DUV generation in random domain structures of SBO
Коллективы : Conference on Lasers and Electro-Optics
Место публикации : Conference on Lasers and Electro-Optics Europe - Technical Digest/ Conference on Lasers and Electro-Optics (2015 ; May ; 10-15 ; San Jose, California, US): IEEE, 2015. - ISBN 2160-9020
Примечания : Cited References:3
Предметные рубрики: CRYSTAL
Аннотация: Random domain structures in orthorhombic strontium tetraborate (alpha-SBO) are capable in enhancing nonlinear optical conversion efficiency for large variety of processes throughout all transparency window of this material, down to 121 nm. Properties of the material, origin of domains, frequency doubling and autocorrelation measurements, conversion of supercontinuum to UV and continuously tunable VUV generation are described. Prospects of biphoton field generation in alpha-SBO are discussed.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A. S.
Заглавие : Nonlinear optical processes and DUV generation in random domain structures of SBO
Коллективы : Conference on Lasers and Electro-Optics
Место публикации : Conference on Lasers and Electro-Optics Europe - Technical Digest/ Conference on Lasers and Electro-Optics (2015 ; may ; 10–15 ; San Jose, California, US): IEEE-Institute Electrical and Electronics Engineers, 2015. - Vol. 2015-August. - Ст.7184028. - ISBN 9781557529688 (ISBN), DOI 10.1364/CLEO_SI.2015.STh3H.1
Примечания : Cited References: 3
Предметные рубрики: CRYSTAL
Ключевые слова (''Своб.индексиров.''): correlation--nonlinear optics--optical diffraction--optical frequency conversion--optical harmonic generation--ultrafast optics
Аннотация: Random domain structures in orthorhombic strontium tetraborate (α-SBO) are capable in enhancing nonlinear optical conversion efficiency for large variety of processes throughout all transparency window of this material, down to 121 nm. Properties of the material, origin of domains, frequency doubling and autocorrelation measurements, conversion of supercontinuum to UV and continuously tunable VUV generation are described. Prospects of biphoton field generation in α-SBO are discussed. © 2015 OSA.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A. S., Vyunishev A. M., Zaitsev A. I.
Заглавие : Nonlinear photonic crystals of strontium tetraborate
Место публикации : Photonic Crystals: Fabrication, Band Struct. and Appl. - New York: Nova Science Publishers, 2011. - P.245-275. - ISBN 978-161668953-7
Аннотация: Structural, optical and nonlinear optical properties of strontium tetraborate (SBO) single crystals are summarized. SBO presently is not considered to be a ferroelectric, however, domain structures consisting of alternating oppositely poled domains, strongly resembling those present in such ferroelectrics as potassium titanyl phosphate and lithium niobate, were recently discovered in this crystal. Such geometrical properties as orientation, size, and degree of randomization, of these domain structures are described. The problem of origin of domain structures in SBO is considered, as well as the possibility of their characteristics control. From the point of view of optical properties, domain-structured samples of strontium tetraborate are classified as randomized nonlinear photonic crystals. Comparative study of nonlinear diffraction and random quasi-phase-matching of nanosecond and femtosecond laser pulses in these nonlinear photonic crystals is presented. Prospects of creation of nonlinear optical converters of laser radiation into VUV spectral region based on domain structured strontium tetraborate are discussed.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A. S., Vyunishev A. M., Zaitsev A. I.
Заглавие : Random quasi-phase-matching and nonlinear diffraction in nonlinear photonic crystal structures of strontium tetraborate : conference paper
Коллективы : Ultrafast optics conference (9; 2013 ; March; 2-8; Davos Congr. Center, Switzerland)
Место публикации : Ultrafast optics conference. - Davos, 2013. - Ст.Fr2.3
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kolovskaya O. S., Zamay T. N., Belyanina I. V., Karlova E. A., Garanzha I. V., Aleksandrovsky A. S., Kirichenko A. K., Dubinina A. V., Sokolov A. Е., Zamay G. S., Glazyrin Y. E., Zamay S. S., Ivanchenko T. I., Chanchikova N. G., Tokarev N. A., Shepelevich N. V., Ozerskaya A.V., Bardin E., Belugin K., Belkin S. A., Zabluda V. N., Gargaun A., Berezovski M. V., Kichkailo A.S.
Заглавие : Aptamer-targeted plasmonic photothermal therapy of cancer
Место публикации : Mol. Ther. Nucl. Acids. - 2017. - Vol. 9. - P.12-21. - ISSN 2162-2131 Electronic, DOI 10.1016/j.omtn.2017.08.007
Примечания : Cited References: 8. - We thank Mr. Yousef Risha for improving the use of English in the manuscript and Mr. George Y. Vorogeikin, Mr. Yuri I. Vorogeikin, and “OKB ART” for the infrared imaging. This research is supported by Ministry of Education and Science Federal Target Program #14.607.21.0104 (RFMEFI60714X0104).
Аннотация: Novel nanoscale bioconjugates combining unique plasmonic photothermal properties of gold nanoparticles (AuNPs) with targeted delivery using cell-specific DNA aptamers have a tremendous potential for medical diagnostics and therapy of many cell-based diseases. In this study, we demonstrate the high anti-cancer activity of aptamer-conjugated, 37-nm spherical gold nanoparticles toward Ehrlich carcinoma in tumor-bearing mice after photothermal treatment. The synthetic anti-tumor aptamers bring the nanoparticles precisely to the desired cells and selectively eliminate cancer cells after the subsequent laser treatment. To prove tumor eradication, we used positron emission tomography (PET) utilizing radioactive glucose and computer tomography, followed by histological analysis of cancer tissue. Three injections of aptamer-conjugated AuNPs and 5 min of laser irradiations are enough to make the tumor undetectable by PET. Histological analysis proves PET results and shows lower damage of healthy tissue in addition to a higher treatment efficiency and selectivity of the gold nanoparticles functionalized with aptamers in comparison to control experiments using free unconjugated nanoparticles.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A. S., Vyunishev A. M., Zaitsev A. I., Pospelov G. I., Rovsky V. E., Slabko V. V.
Заглавие : Broadband frequency conversion in random nonlinear photonic crystals
Коллективы : "Laser Optics", International conference (15; 2012 ; June ; 25-29; St. Petersburg), "Оптика лазеров", Международная конференция (15; 2012 ; июнь ; 25-29; Санкт-Петербург)
Место публикации : Laser Optics 2012. - 2012. - Ст.WeR1-p69. - P.42
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Vyunishev A. M., Aleksandrovsky A. S., Zaitsev A. I., Slabko V. V.
Заглавие : Broadband pulse conversion in 1d disordered nonlinear photonic crystals
Коллективы : "Light in Disordered Photonic Media", 546. WE-Heraeus-Seminar (546; 2013 ; 2-4 dec; Bad Honnef, Germany)
Место публикации : WE-Heraeus-Seminar: "Light in Disordered Photonic Media", 546. - 2013
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