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Каталог книг и брошюр библиотеки ИФ СО РАН (26)

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lukinykh V. F., Myslivets S. A., Popov A. K., Slabko V. V.
Заглавие : 9th-order nonlinear polarization and VUV generation in HG vapor
Разночтения заглавия :авие SCOPUS: Ninth-order nonlinear polarization and vuv generation in Hg vapor
Место публикации : Appl. Phys. B. - 1984. - Vol. 34, Is. 3. - P.171-173. - ISSN 0721-7269, DOI 10.1007/BF00697511
Примечания : Cited References: 13
Ключевые слова (''Своб.индексиров.''): 42.65--42.80--light - nonlinear optical effects--vapors--mercury and amalgams
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chen Y., Liu F., Zhang Z., Hong J., Molokeev M. S., Bobrikov I. A., Shi J., Zhou J., Wu M.
Заглавие : A novel Mn4+-activated fluoride red phosphor Cs30(Nb2O2F9)9(OH)3·H2O:Mn4+ with good waterproof stability for WLEDs
Место публикации : J. Mater. Chem. C. - 2022. - Vol. 10, Is. 18. - P.7049-7057. - ISSN 20507534 (ISSN), DOI 10.1039/d2tc00132b
Примечания : Cited References: 56. - This work was financially supported by grants from the National Natural Science Foundation of China (NSFC) (No. 51802359), the Joint Funds of NSFC and Yunnan Province (No. U1702254), and Guangdong Basic and Applied Basic Research Foundation (No. 2020A1515010556)
Аннотация: Red-light-emitting materials, as pivotal components of warm white light-emitting diodes (WLEDs), have drawn increasing public focus. Among these, Mn4+-doped red light-emitting fluorides have drawn considerable attention when combined with an InGaN chip; however, they suffer from poor water stability under humid conditions. In this work, a novel fluoride red phosphor, Cs30(Nb2O2F9)9(OH)3·H2O:xMn4+ (CNOFM), with good water resistance was synthesized for the first time using a facile co-precipitation method at ambient temperature. Experiments were implemented for the precise analysis of its crystal structure, optical properties, micro-morphology, thermal behavior, and waterproof properties. 6.66% Mn4+-doped CNOFM maintained a stable crystal structure and possessed strong PL intensity located at 633 nm with high color purity of 96%. CNOFM showed better thermal and waterproof stability compared with the commercial K2SiF6:Mn4+ red phosphor. Without any surface modifications, the PL intensity remained at about 83% of the initial value after immersion in water for 60 min, and the mechanism was investigated. Finally, a warm WLED with a CRI of 92.3 and CCT of 3271 K was fabricated using the CNOFM red phosphor.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Liu H., Liao L., Molokeev M. S., Guo Q., Zhang Y., Mei L.
Заглавие : A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+: Synthesis, crystal structure and luminescence properties
Место публикации : RSC Adv.: Royal Society of Chemistry, 2016. - Vol. 6, Is. 29. - P.24577-24583. - ISSN 20462069 (ISSN), DOI 10.1039/c5ra23348h
Примечания : Cited References: 33. - We gratefully acknowledge the financial support by the National Natural Science Foundations of China (Grant no. 41172053), the Fundamental Research Funds for the Central Universities (Grant no. 2652013043), and Science and Technology Innovation Fund of the China University of Geosciences (Beijing).
Предметные рубрики: Energy-transfer
Diodes
LEDs
Emission
Ions
Excitation
Ce3+
Eu2+
Ln
Аннотация: A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+ was prepared through traditional high-temperature solid state technology. The crystal structures of Ca9La(PO4)5(SiO4)F2 with or without Dy3+ ions were refined by the Rietveld method. The diffuse reflection spectra, excitation spectra, emission spectra, and decay times were characterized to investigate the photoluminescence properties for application in white light-emitting diodes. The results showed that the Ca9La(PO4)5(SiO4)F2:Dy3+ phosphor could efficiently assimilate n-UV light and emit blue (∼485 nm) and yellow light (∼580 nm), originating from the f-f transitions of Dy3+. The critical Dy3+ quenching concentration (QC) was determined to be about 15 mol%, and the corresponding QC mechanism was verified to be the dipole-dipole interaction. Additionally, the emission colors of all samples were located close to the ideal white light region, and the optimal chromaticity coordinates and correlated color temperature (CCT) were determined to be (x = 0.338, y = 0.336) and 5262 K. All the above results indicate that the as-prepared Ca9La(PO4)5(SiO4)F2:Dy3+ phosphor could serve as a promising candidate for white-light n-UV-LEDs. © The Royal Society of Chemistry 2016.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shtarev D. S., Shtareva A. V., Molokeev M. S., Syuy A. V., Nashchochin E. O.
Заглавие : About photocatalytic properties of some heterostructures based on strontium bismuthate
Коллективы : Asian School-Conference on Physics and Technology of Nanostructured Materials
Место публикации : Key Eng. Mater. - 2019. - Vol. 806 KEM. - P.161-166. - ISSN 10139826 (ISSN); 9783035715682 (ISBN), DOI 10.4028/www.scientific.net/KEM.806.161
Примечания : Cited References: 9. - The research was carried out at the expense of a grant from the Russian Science Foundation (project No. 17-73-00007).
Аннотация: In the work, some heterostructures consisting of two different strontium bismuthates from the following series are investigated: Sr2Bi2O5, Sr3Bi2O6 and Sr6Bi2O11. It is shown that the creation of such heterostructures affects both optical and photocatalytic properties. The results obtained are promising for the further development and research of new heterostructures based on two different strontium bismuthates and for studying the characteristics of their photocatalytic activity. © 2019 Trans Tech Publications Ltd, Switzerland
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov E. A., Beznosikov B. V.
Заглавие : Absorption of light by exchange-coupled ions in a 2D antiferromagnet
Место публикации : Phys. Solid State. - 2003. - Vol. 45, Is. 8. - P.1475-1478. - ISSN 1063-7834, DOI 10.1134/1.1602882
Примечания : Cited References: 9
Предметные рубрики: OPTICAL-ABSORPTION
RB2MNCL4
Аннотация: The optical absorption spectra of Rb2MnxCd1-xCl4 crystals are experimentally studied in the vicinity of a magnon sideband of the exciton band at a manganese content x ranging from 1.0 to 0.4. Additional absorption bands are observed with an increase in the magnetic structural disorder upon replacement of manganese ions by cadmium ions. An analysis of the evolution of the additional absorption bands in a magnetic field during the spin-flop phase transition and the change in the intensity with variations in the manganese content x demonstrates that these bands are associated with the excitation of the exchange-coupled pairs of manganese ions located in different environments in a plane square lattice. The phase boundary between the antiferromagnetic and spin-flop phases is constructed using the results of optical measurements. The manganese content corresponding to the magnetic percolation point is evaluated. (C) 2003 MAIK "Nauka/Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Deich L. I.
Заглавие : Absorption of light by glasses in the far infrared
Место публикации : Jetp Lett. - 1992. - Vol. 56, Is. 10. - P.492-495. - ISSN 0021-3640
Примечания : Cited References: 9
Предметные рубрики: STATES
Аннотация: An explanation is proposed for the deviation from the Debye shape of the absorption curve of glasses in the far infrared.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Begunovich L. V., Kovaleva E. A., Korshunov M. M., Shabanov V. F.
Заглавие : Absorption spectra of the purple nonsulfur bacteria light-harvesting complex: A DFT study of the B800 part
Колич.характеристики :7 с
Место публикации : J. Photochem. Photobiol. A: Chem. - 2024. - Vol. 450. - Ст.115454. - ISSN 10106030 (ISSN), DOI 10.1016/j.jphotochem.2023.115454. - ISSN 18732666 (eISSN)
Примечания : Cited References: 42. - This work was supported by the state assignment of the Ministry of Science and Higher Education of the Russian Federation. Authors would like to thank Information Technology Centre, Novosibirsk State University for providing access to their supercomputers. L.V.B. would like to thank Irkutsk Supercomputer Center of SB RAS for providing the access to HPC-cluster «Akademik V.M. Matrosov» (Irkutsk Supercomputer Center of SB RAS, Irkutsk: ISDCT SB RAS; http://hpc.icc.ru, accessed 20.10.2023)
Аннотация: We’ve studied the B800 part of Rhodoblastus acidophilus light-harvesting complex (LH2) by several quantum chemical techniques based on the density functional theory (DFT) and determined the specific method and a minimal reliable model suitable for further studies of the LH2. In addition to bacteriochlorophyll a molecules, the minimal model includes two α and one β chain amino acids. Within the model, we are able to reproduce the contribution of the B800 ring of nine bacteriochlorophyll a molecules to the near infrared Qy absorption band. We also discuss the use of hybrid DFT calculations for precise energy and optical estimations and DFT-based tight binding (DFTB) method for the large-scale calculations. Crucial importance of Hartree-Fock exchange interaction for the correct description of B800 peak position was shown.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krasnov I. V.
Заглавие : All-optical confinement of ultracold plasma with resonant ions
Место публикации : Phys. Lett. A: ELSEVIER SCIENCE BV, 2009. - Vol. 373, Is. 26. - P2291-2297. - ISSN 0375-9601, DOI 10.1016/j.physleta.2009.04.042
Примечания : Cited References: 40
Предметные рубрики: RADIATION-PRESSURE
NEUTRAL PLASMAS
POTENTIAL WELLS
ATOMIC MOTION
LIGHT-FIELD
FORCE
SUPERLATTICE
RECTIFICATION
WAVE
Ключевые слова (''Своб.индексиров.''): laser cooling and trapping--ultracold neutral plasma--rectified radiation forces--laser cooling and trapping--rectified radiation forces--ultracold neutral plasma
Аннотация: The solution of the problem of all-optical (nonmagnetic) confinement of ultracold electron-ion neutral plasma based on selective action on plasma ions with quantum transition J = 1 - J = 0 of so-called rectified radiation forces in a strong nonmonochromatic light field is suggested. The presented scheme of the three-dimensional dissipative optical trap for plasma allows one to obtain long-lived ultracold plasma with controlled characteristics. The lifetime of the ultracold plasma in such a trap may exceed considerably (by orders of magnitude) the time of free plasma expansion and the lifetime in the (earlier proposed) optical molasses for the ultracold plasma. (C) 2009 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Pichugin K. N., Sadreev A. F.
Заглавие : All-optical light storage in bound states in the continuum and release by demand
Коллективы : Russian Scientific Foundation [14-12-00266]
Место публикации : Opt. Express: Optical Society of America, 2015. - Vol. 23, Is. 17. - P.22520-22531. - ISSN 1094-4087, DOI 10.1364/OE.23.022520
Примечания : Cited References: 45. - This work was supported by Russian Scientific Foundation through Grant 14-12-00266. We acknowledge discussions with D.N. Maksimov
Предметные рубрики: TRAPPED RAINBOW STORAGE
COUPLED-MODE THEORY
CRYSTAL WAVE-GUIDE
SLOW LIGHT
FANO RESONANCE
METAMATERIALS
MICROCAVITY
CAVITIES
Аннотация: In the framework of the temporal coupled mode theory we consider bound states embedded in the continuum (BSC) of photonic crystal waveguide as a capacity for light storage. A symmetry protected BSC occurs in two off-channel microresonators positioned symmetrically relative to the waveguide. We demonstrate that the symmetry protected BSC captures a fraction of a light pulse due to the Kerr effect as the pulse passes by the microresonators. However the amount of captured light is found to be strongly sensitive to the parameters of the gaussian light pulse such as basic frequency, duration and intensity. In contrast to the above case the BSC resulted from a full destructive interference of two eigenmodes of a single microresonator accumulates a fixed amount of light dependent on the material parameters of the microresonator but independent of the light pulse. The BSCs in the Fabry-Perot resonator show similar effects. We also show that the accumulated light can be released by a secondary pulse. These phenomena pave a way for all-optical storage and release of light. (C) 2015 Optical Society of America
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : All-optical manipulation of light in X- and T-shaped photonic crystal waveguides with a nonlinear dipole defect
Место публикации : Phys. Rev. B: American Physical Society, 2012. - Vol. 86, Is. 7. - Ст.75125. - ISSN 1098-0121, DOI 10.1103/PhysRevB.86.075125
Примечания : Cited References: 38. - The work is partially supported by Integration Project of Siberian Branch of RAS (Project No. 29) and RFBR Grant No. 12-02-000094. We thank D. N. Maksimov for critical reading of the manuscript.
Предметные рубрики: SPONTANEOUS SYMMETRY-BREAKING
FIBER
CAVITIES
SYSTEM
FIELDS
Аннотация: We consider light transmission in X- and T-shaped photonic crystal waveguides which hold nonlinear defect with two resonant dipole modes. By use of the coupled-mode theory and by numerical solution of the Maxwell equations for the transverse-magnetic (TM) light mode, we show two stable types of the solutions. The first type has no cross talk, while the second type does owe to nonlinearity of the defect. We show also that direct path transmission processes in the waveguides play an important role for breaking of symmetry.
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