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Nonlinear photonic crystals of strontium tetraborate [Text] / A. S. Aleksandrovsky // International Workshop "Nonlinear photonics: theory, materials, applications" (NLP-2011) : Book of Abstracts. - 2011. - P40
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.

Доп.точки доступа:
Aleksandrovsky, A.S.; "Nonlinear Photonics: Theory, Materials and Applications", Int. Workshop(2011 ; St. Petersburg)
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Structural peculiarities of bismuth-containing RFe3(BO3)4 (R = Ho, Y, Sm, Nd) / E. Smirnova, O. Alekseeva, A. Dudka [et al.] // Acta Crystallogr. A. - 2021. - Vol. 77, Supplement. - P. C1237-C1237, DOI 10.1107/S0108767321084749. - Cited References: 4. - This work was performed using the equipment of the Shared Research Center FSRC 'Crystallography and Photonics' RAS and was supported by the Ministry of Science and Higher Education within the State assignment FSRC 'Crystallography and Photonics' RAS . - ISSN 2053-2733

РУБ Chemistry, Multidisciplinary + Crystallography

Кл.слова (ненормированные):
phase transition -- single crystals -- multiferroics -- rare-earth iron borates -- X-ray structure analysis -- EDS spectroscopy -- Mossbauer spectroscopy -- characteristic temperatures

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Держатели документа:
FSRC Crystallog & Photon RAS, Leninskiy Prospekt 59, Moscow 119333, Russia.
RAS, Kirensky Inst Phys, Siberian Branch, Akad Gorodok 50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Smirnova, E.; Alekseeva, O. A.; Dudka, A. P.; Verin, I. A.; Artemov, V. V.; Артемов Владимир В.; Khmelenin, D. N.; Gudim, I. A.; Гудим, Ирина Анатольевна; Frolov, K. V.; Lyubutin, I. S.; Ministry of Science and Higher Education within the State assignment FSRC 'Crystallography and Photonics' RAS; Congress of the International Union of Crystallography(25 ; 14-22 August 2021 ; Prague, Czech Republic)
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Optical multichannel filters made of a polymer-stabilized cholesteric film sandwiched between two dielectric mirrors [Text] / Hsiao Y.-C., Hou C.-Т., Zyryanov V.Ya., Lee W. // Int. Photonics Conf. - 2011. - P111

Доп.точки доступа:
Hsiao, Y.-C.; Hou, C.-Т.; Zyryanov, V.Ya.; Lee, W.; International Photonics Conference(December 8-10, 2011 ; Tainan)
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One-dimensional photonic crystal containing bistable cholesteric liquid crystal as a defect layer [Text] / Y. -C. Hsiao, C. -H. Chen, V. Ya. Zyryanov, W. Lee // Int. Photonics Conf. : Paper in Proceedings. - 2011. - P102

Доп.точки доступа:
Hsiao, Y.-C.; Chen, C.-H.; Zyryanov, V.Ya.; Lee, W.; International Photonics Conference(December 8-10, 2011 ; Tainan, Taiwan)
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    Пятнов, Максим Владимирович.
    Фотоэлектрохимическое расщепление воды наноструктурированным электродом и зеленая водородная энергетика / М. В. Пятнов, И. В. Тимофеев // Фотоника. - 2022. - Т. 16, Вып. 2. - С. 116-125 ; Photonics Rus., DOI 10.22184/1993-7296.FRos.2022.16.2.116.125. - Библиогр.: 28. - Исследование выполнено за счет гранта Российского научного фонда и Красноярского краевого фонда поддержки научной и научно-технической деятельности № 22-22-20078, https://rscf.ru/project/22-22-20078 . - ISSN 1993-7296. - ISSN 2686-844X
   Перевод заглавия: Photoelectrochemical water splitting by a nanostructured electrode and green hydrogen energy
Кл.слова (ненормированные):
плазмонный катализ -- расщепление воды -- фототок -- эффективность преобразования света в водород -- plasmonic catalysis -- water splitting -- photo-induced current -- light-to-hydrogen conversion efficiency
Аннотация: В статье описан перспективный способ получения водорода – фотоэлектрохимическое расщепление воды. Этот подход сочетает непосредственное использование солнечной энергии и низкую стоимость производства фотоэлектрохимических ячеек из широко распространенных на Земле полупроводниковых материалов. Последние достижения в конструировании таких ячеек включают наноструктурирование полупроводниковых электродов плазмонными материалами.
This article describes a promising hydrogen formation method, namely the photoelectrochemical water splitting. This approach combines the direct use of solar energy and low production cost of photoelectrochemical cells using the widely used semiconductor materials. The latest advances in such cell design include nanostructuring of the semiconductor electrodes with plasmonic materials.

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Держатели документа:
Институт физики им. Л. В. Киренского СО РАН -обособленное подразделение ФИЦ КНЦ СО РАН
Сибирский федеральный университет

Доп.точки доступа:
Тимофеев, Иван Владимирович; Timofeev, I. V.; Pyatnov, M. V.

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Nanoparticle shape optimization for Tamm-plasmon-polariton-based organic solar cells in the visible spectral range / R. G. Bikbaev, S. Y. Vetrov, I. V. Timofeev, V. F. Shabanov // Photonics. - 2022. - Vol. 9, Is. 11. - Ст. 786, DOI 10.3390/photonics9110786. - Cited References: 28. - The reported study was funded by a grant of the President of the Russian Federation №MK-46.2021.1.2 . - ISSN 2304-6732
Кл.слова (ненормированные):
photonic crystal -- Tamm plasmon polariton -- organic solar cell
Аннотация: The effect of the shape of the nanoparticles and the polarization of incident light on the surface current density and the efficiency of an organic solar cell based on the Tamm plasmon polariton is investigated. In the cases of both elongated and flattened nanoparticles, it is shown that the efficiency of such a solar cell is increased when the electric field vector is parallel to the largest axis of the spheroid.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Vetrov, S. Y.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Shabanov, V. F.; Шабанов, Василий Филиппович
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Nonlinear photonic crystals of strontium tetra borate: properties and conversion of radiation [Text] / A. Aleksandrovsky, A. Vyunishev [et al.] // SPIE Photonics Europe Conference / SPIE Photonics Europe Conference (2010 ; Apr. ; 12-16 ; Brussels, Belgium). - 2010. - P72

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Slabko, V. V.; Слабко, Виталий Васильевич; Zaitsev, A. I.; Зайцев, Александр Иванович; SPIE Photonics Europe Conference(2010 ; Apr. ; 12-16 ; Brussels, Belgium)
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    Coherent nonlinear optics and quantum control in negative-index metamaterials / A. K. Popov, S. A. Myslivets, V. M. Shalaev // J. Opt. A-Pure Appl. Opt. - 2009. - Vol. 11, Is. 11, DOI 10.1088/1464-4258/11/11/114028. - Cited Reference Count: 27 . - ISSN 1464-4258
Рубрики:
LEFT-HANDED METAMATERIALS
   2ND-HARMONIC GENERATION
   PARAMETRIC OSCILLATOR
   3RD-HARMONIC GENERATION
   MAGNETIC METAMATERIALS
   COMPENSATING LOSSES
   BACKWARD WAVE
Кл.слова (ненормированные):
nonlinear optics -- metamaterials -- coherent optical effects -- backward waves -- parametric -- microamplifiers and oscillators -- Backward waves -- Coherent optical effects -- Metamaterials -- Microamplifiers and oscillators -- Nonlinear optics -- Parametric -- Backward waves -- Coherent Energy Transfer -- Coherent optical effects -- Control fields -- Control optical fields -- Laser induced -- Negative refractive index -- Negative-index -- Numerical experiments -- Parametric amplification -- Phase mismatch -- Quantum control -- Absorption -- Amplification -- Energy transfer -- Four wave mixing -- Metamaterials -- Optical materials -- Parametric oscillators -- Refractive index -- Transparency -- Optical parametric oscillators
Аннотация: The extraordinary properties of laser-induced transparency of a negative-index slab and parametric amplification for a backward wave signal are investigated. The effects of the idler absorption and phase mismatch on the amplification of the signal are studied, and the feasibility of ensuring robust transparency for a broad range of control field intensities and slab thicknesses is shown. A particular option consisting of the independent engineering of a strong four-wave mixing response and the negative refractive index is proposed and its specific features are investigated. The feasibility of quantum control over the slab transparency in such a scheme is confirmed through numerical experiments. We thus show opportunities and conditions for the compensation of the strong absorption inherent to plasmonic negative-index metamaterials, and we further show achievable transparency through coherent energy transfer from the control optical field to the negative-index signal.

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Держатели документа:
Univ Wisconsin, Dept Phys & Astron, Stevens Point, WI 54481 USA
Russian Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660036, Russia
Purdue Univ, Birk Nanotechnol Ctr, W Lafayette, IN 47907 USA
Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

Доп.точки доступа:
Popov, A.K.; Myslivets, S.A.; Shalaev, V.M.; International Workshop on Theoretical and Computational Nano-Photonics(DEC 03-05, 2008 ; Bad Honnef, GERMANY)
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    Narrow bandwidth luminescence in Sr2Li(Al,Ga)O4:Eu2+ by selective site occupancy engineering for high definition displays / J. Qiao, Y. Zhou, M. S. Molokeev [et al.] // Laser Photon. Rev. - 2021. - Vol. 15, Is. 11. - Ст. 2100392, DOI 10.1002/lpor.202100392. - Cited References: 39. - J.Q. and Y.Z. contributed equally to this work. This research was supported by the National Natural Science Foundation of China (grant nos. 51972118 and 51961145101), International Cooperation Project of National Key Research and Development Program of China (2021YFE0105700), Guangzhou Science & Technology Project (202007020005), the State Key Laboratory of Luminescent Materials and Devices (Skllmd-2021-09), and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01×137). This work is also funded by RFBR according to the research project no. 19-52-80003 . - ISSN 1863-8880
   Перевод заглавия: Узкополосная люминесценция в Sr2Li (Al, Ga) O4: Eu2+, полученная с помощью выборочной заселенности позиций в кристалле, для дисплеев высокой четкости
Кл.слова (ненормированные):
chemical substitution -- green-emitting phosphor -- narrow-band emission -- site engineering
Аннотация: It remains a critical challenge to develop narrow-band emitters for wide color gamut displays. Herein, it is designed by the selective site occupancy engineering and an unprecedented narrow-band green-emitting phosphor is prepared through chemical substitution. By introducing Ga3+ ions into Sr2LiAlO4:Eu2+ phosphor, the distribution of Eu2+ ions in Sr1 and Sr2 sites is effectively controlled, and only one type of luminescent centers Eu2+(Sr1) is remained in Sr2LiAl0.6Ga0.4O4:Eu2+ due to the compression effect of Sr2O8 polyhedra. Sr2LiAl0.6Ga0.4O4:Eu2+ phosphor presents an extremely narrow-band green emission centered at 512 nm with a full-width at half-maximum of only 40 nm. The wide color gamut (107% National Television System Committee) of the as-fabricated white liquid crystal displays and the vivid figures captured from the projector demonstrate the potential application of narrow-band emitter for wide-color gamut displays. This work provides the design principles of realizing narrow-band emission by selective site occupancy engineering and can set the stage for the exploring of Eu2+-activated phosphor for high definition displays.

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Держатели документа:
State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
Laboratory of Crystal Physics, Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
Department of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation
School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, China

Доп.точки доступа:
Qiao, J.; Zhou, Y.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhang, Q.; Xia, Z.
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10.

    Electrically active and thermally passive liquid-crystal device toward smart glass / G. F. Sung, P. C. Wu, V. Y. Zyryanov, W. Lee // Photonics Res. - 2021. - Vol. 9, Is. 11. - P. 2288-2295, DOI 10.1364/PRJ.437654. - Cited References: 26. - Ministry of Science and Technology, Taiwan (107-2112-M-009-012-MY3, 110-2112-M-A49-023) . - ISSN 2327-9125
   Перевод заглавия: Электрически-активное и термически-пассивное жидкокристаллическое устройство для умных стекол

РУБ Optics
Рубрики:
INFRARED REFLECTOR
INSTABILITY
Аннотация: Cholesteric liquid crystals (CLCs) are an important soft material for display and sensing technologies due to their unique optical and thermal properties, which are susceptible to external perturbations such as the electric field and temperature variation. The typically periodic structure of a CLC with a twist between molecular layers permits its chiral photonic crystallinity and the resulting selective reflection of a bandwidth in the otherwise generally high transmission spectrum of incident light. Here we report on a novel dual-mode CLC device as smart glass that enables the transparency to be self-adaptive to temperature and is simultaneously characterized by a fully on-demand, electrically controlled function, allowing users to regulate the suitable or desired extent of transparency in accordance with their living climate zones or personal needs. The working principle is based on the controllable strength of voltage-induced electrohydrodynamic flow, generating temperature-dependent dynamic scattering for passive control. Moreover, the transmission can be reversibly modulated and switched by applied AC voltage for active control between the transparent and opaque states. As a proof of concept, the characteristic Bragg reflection can be designed to sit in the near-infrared region to partially block unwanted thermal radiation in the optically transparent state.

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Держатели документа:
Natl Yang Ming Chiao Tung Univ, Coll Photon, Tainan 711010, Taiwan.
Natl Yang Ming Chiao Tung Univ, Inst Imaging & Biomed Photon, Tainan 711010, Taiwan.
Russian Acad Sci, Fed Res Ctr, Kirensky Inst Phys, Krasnoyarsk Sci Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Sung, Guan-Fu; Wu, Po-Chang; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, Wei; Ministry of Science and Technology, TaiwanMinistry of Science and Technology, Taiwan [107-2112-M-009-012-MY3, 110-2112-M-A49-023]
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