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1.
Preparation and structural
properties of nonlinear optical borates K 2(1-x)Rb 2xAl 2B 2O 7, 0 ˂ x ˂ 0.75 / V. V. Atuchin [и др.]> // J. Alloys Compd. - 2012. -
Vol. 515
. - P. 119-122,
DOI
10.1016/j.jallcom.2011.11.115. - Cited References: 30. - This study was supported by SB RAS (Grant 34) and RFBR Grants 11-02-90706-mob_st and 11-03-00867a. . - ISSN 0925-8388
Перевод заглавия:
Получение и структурные свойства нелинейных оптических боратов K 2(1-x)Rb 2xAl 2B 2O 7, 0 ˂ x ˂ 0.75
РУБ
Chemistry, Physical + Materials Science, Multidisciplinary + Metallurgy & Metallurgical Engineering + Aluminum + Crystal structure + Nonlinear optics + Rietveld analysis + Rubidium + Solid solutions + Structural properties + X ray powder diffraction
Рубрики:
UV-
light
generation
Frequence-conversion
K2Al2B2O7 crystal
Composition ratio
Mixed-crystals
Growth
KRbAl2B2O7
NLO properties
Non-linear optical
Non-linear optical properties
Rietveld analysis of X-ray powder diffraction data
Solubility limits
Space Groups
Structural parameter
Кл.слова (ненормированные):
KRbAl2B2O7
--
Solid solution
--
Crystal structure
--
NLO properties
Аннотация:
The structures of K 2(1-x)Rb 2xAl 2B 2O 7, x = 0.25, 0.5, 0.75, have been determined in space group P321 through Rietveld analysis of X-ray powder diffraction data. The solubility limit in K 2(1-x)Rb 2xAl 2B 2O 7 crystals has been estimated as x similar to 0.83-0.9. Nonlinear optical properties of KRbAl 2B 2O 7 have been verified by powder Kurtz-Perry method. Mechanisms of structural parameter variation in K 2Al 2B 2O 7 crystal family have been discussed.
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Доп.точки доступа:
Atuchin, V. V.; Bazarov, B. G.; Gavrilova, T. A.; Grossman, V. G.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Bazarova, Zh. G.
}
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2.
Influence of band-to-band
transition on
light
-controlled self-assembly of semiconductor nanoparticles / V. V. Slabko [et al.]> //
ICONO/LAT 2013 : Advance conference program. - 2013. - Ст. IWS8. - P. 67
Материалы конференции
,
Материалы конференции
Доп.точки доступа:
Slabko, V. V.; Слабко, Виталий Васильевич; Slyusareva, E. A.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Tsipotan, A. S.; Glushkov, А. А.; International Conference on Coherent and Nonlinear Optics(2013 ; June ; 18-22 ; Moscow); International Conference on Lasers, Applications, and Technologies(2013 ; June ; 18-22 ; Moscow)
}
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3.
Enhanced
light
absorption
with a cholesteric liquid crystal layer / I. V. Timofeev [et al.]> // Opt. Mater. Express. - 2013. -
Vol. 3
,
Is. 4
. - P. 496-501
DOI
10.1364/OME.3.000496
Перевод заглавия:
Усиление поглощения света при помощи холестерического жидкокристаллического слоя
Аннотация:
We discuss the trapping features of cholesteric liquid crystal as a self-organized photonic crystal and suggest it for absorption improvement. The imperfection of the absorbing surface is manifested by the reflection originating from the indispensable impedance mismatch. The reflection can be suppressed by an additional surface coating to reflect the
light
back to the absorber once again. In the simple consideration this reflection loop is possible only twice. For a right-handed CLC coating, the boundary reflection switches the
light
polarization from left to right circular in the first loop and it switches in the second loop back to the left circular polarization before the emerging
light
finally escapes from the absorbing process. The enhancement of
light
absorption is possible in the frequency range as large as the photonic bang gap of the cholesteric layer, which can be adjusted as desired.
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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Natl Chiao Tung Univ, Coll Photon, Inst Imaging & Biomed Photon, Tainan 71150, Taiwan
Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vetrov, S. Y.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, W.
}
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4.
Bulgakov, E. N.
Giant optical vortex in photonic crystal waveguide with nonlinear optical cavity / E. N. Bulgakov, A. F. Sadreev> // Phys. Rev. B. - 2012. -
Vol. 85
,
Is. 16
. - Ст. 165305,
DOI
10.1103/PhysRevB.85.165305. - Cited References: 43. - The work is partially supported by RFBR grant 12-02-00483. We thank D. N. Maksimov and K. N. Pichugin for assistance in the manuscript preparation. . - ISSN 1098-0121
РУБ
Physics, Condensed Matter
Рубрики:
SYMMETRY-BREAKING
FIBER
MICROCAVITIES
COUPLER
INSTABILITIES
GRATINGS
MODES
LIGHT
Аннотация:
We consider
light
transmission in a directional photonic crystal waveguide that holds a nonlinear defect with two resonant dipole modes within the
light
propagation band. For the defect positioned on the center line of the waveguide, there are two ways to break the mirror symmetry with respect to either
light
intensity or
light
phase. The latter results in a giant vortex of the Poynting vector of the power current within the defect exceeding the input current by, at least, two orders of magnitude. We also consider the breaking of symmetry relative to the mirror reflection with respect to the cross-sectional axis of the waveguide when
light
is injected equally into both ends of the waveguide. This leads to different
light
outputs determined by the vorticity of the optical vortex.
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Держатели документа:
[Bulgakov, Evgeny N.
Sadreev, Almas F.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Bulgakov, Evgeny N.] Sibian State Aerosp Univ, Krasnoyarsk, Russia
Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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5.
Bulgakov, E. N.
All-optical manipulation of
light
in X- and T-shaped photonic crystal waveguides with a nonlinear dipole defect / E. N. Bulgakov, A. F. Sadreev> // Phys. Rev. B. - 2012. -
Vol. 86
,
Is. 7
. - Ст. 75125,
DOI
10.1103/PhysRevB.86.075125. - 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. . - ISSN 1098-0121
РУБ
Physics, Condensed Matter
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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Держатели документа:
[Bulgakov, Evgeny N.
Sadreev, Almas F.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Bulgakov, Evgeny N.] Siberian State Aerosp Univ, Krasnoyarsk, Russia
Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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6.
Structural and luminescence
properties of yellow-emitting NaScSi 2O6:Eu2+ phosphors: Eu2+ Site preference analysis and generation of red emission by codoping Mn2+ for white-
light
-emitting diode applications / Z. Xia [et al.]> // J. Phys. Chem. C. - 2013. -
Vol. 117
,
Is. 40
. - P. 20847-20854
DOI
10.1021/jp4062225. - Cover image: Artwork representing main idea of this article
Аннотация:
The structural properties of clinopyroxene NaScSi2O6 have been investigated using the X-ray powder diffraction refinement, and the luminescence properties of Eu2+ and Eu2+/Mn 2+-activated NaScSi2O6 have been studied to explore the new materials for phosphor-converted white
light
ultraviolet
light
-emitting diodes (UV-LEDs). Eu2+ was introduced into the NaScSi2O6 host in the reducing atmosphere, and the preferred crystallographic positions of the Eu2+ ions were determined based on the different structural models of the NaScSi2O6 host. The as-obtained NaScSi2O6:Eu2+ phosphor shows greenish yellow emission with the broad-band peak at 533 nm, and efficient energy transfer (ET) takes place between Eu2+ and Mn2+ in NaScSi2O6, leading to a series of color-tunable phosphors emitting at 533 and 654 nm for the designed NaScSi2O 6:Eu2+,Mn2+ phosphors under excitation at 365 nm. The ET mechanism of Eu2+ and Mn2+ has also been evaluated. We have demonstrated that NaScSi2O6:Eu 2+ and NaScSi2O6:Eu2+,Mn 2+ materials exhibit great potential to act as the effective phosphors for UV-LEDs. В© 2013 American Chemical Society.
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Держатели документа:
China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia
Доп.точки доступа:
Xia, Zhiguo; Zhang, Y.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Atuchin, V. V.
}
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7.
Bulgakov, E. N.
Light
-induced degeneracy of resonance modes in a nonlinear microcavity coupled with waveguides: Application to channel drop filter / E. N. Bulgakov, A. F. Sadreev> // J. Opt. Soc. Am. B. - 2013. -
Vol. 30
,
Is. 9
. - P. 2549-2554,
DOI
10.1364/JOSAB.30.002549 . - ISSN 0740-3224
Перевод заглавия:
Свето-индуцированное восстановления вырождения в нелинейном микрорезонаторе, связанного с волноводами: приложение к переключателю каналов
Кл.слова (ненормированные):
Channel drop filters
--
Channel dropping
--
Eigen modes
--
Injected power
--
Light
-induced
--
Parallel waveguides
--
Resonance mode
--
Two-dimensional photonic crystals
--
Microcavities
--
Natural frequencies
--
Waveguides
--
Waveguide filters
Аннотация:
We consider a microcavity with degenerate dipole or hexapole eigenmodes. If the cavity is positioned between waveguides, degeneracy is lifted. However, we show that in a nonlinear microcavity the degeneracy is recovered at certain injected power. In application we consider a two-dimensional photonic crystal of GaAs rods holding two parallel waveguides and one defect made of Kerr media. We show that 100% efficiency channel dropping can be attained without a necessity to tune the resonant frequencies of the microcavity. В© 2013 Optical Society of America.
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Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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8.
Линейный и квадратичный
магнитооптические эффекты в проходящем свете в тонких пленках La0.7Sr0.3MnO3 / Ю. Э. Гребенькова [и др.]> // Письма в Журн. эксперим. и теор. физ. - 2013. -
Т. 98
,
вып. 8
. - С. 518 – 522
DOI
10.7868/S0370274X13200058
Аннотация:
Обнаружен и исследован магнитный линейный дихроизм (МЛД) поликристаллических пленок La0.7Sr0.3MnO3 в проходящем свете. Получены спектральные и температурные зависимости МЛД в области энергий световой волны E от 1.5 до 3.5 эВ. Экспериментальные спектры аппроксимированы суммой кривых формы Лорентца. В спектре МЛД выявлено значительно большее количество особенностей по сравнению со спектрами магнитного кругового дихроизма (МКД), измеренными нами ранее для тех же пленочных образцов. Обнаружено различное температурное поведение интенсивностей лорентцевых компонент, центрированных при различных значениях E. Оно может быть связано с влиянием поверхностных состояний на магнитооптические свойства образцов.
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Переводная версия
Linear and quadratic magneto-optical effects observed in La0.7Sr0.3MnO3 thin films in transmitted
light
. - [Б. м. : б. и.]
Держатели документа:
Институт физики им. Л.В. Киренского СО РАН
Доп.точки доступа:
Гребенькова, Юлия Эрнестовна; Greben'kova Yu.E.; Соколов, Алексей Эдуардович; Sokolov A.E.; Эдельман, Ирина Самсоновна; Edelman, I. S.; Андреев, Н. В.; Чичков, В. И.; Муковский, Я. М.
}
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9.
Light
passage through
the polymer film of liquid crystal droplets with modified boundary conditions / V. A. Loiko [et al.]> // Semiconductor Physics, Quantum Electronics and Optoelectronics. - 2013. -
Vol. 16
,
№ 1
. - P. 185-189. - This work was performed under the aegis of the Integration Project and supported by the Belarusian Republican Foundation for Fundamental Research, Project No. F12SO-007
Кл.слова (ненормированные):
polymer dispersed liquid crystal
--
transmittance
--
scattering
--
light
modulation
Аннотация:
A method to analyze coherent transmission coefficients and the small-angle
light
scattering structure of PDLC layer with homogeneous and inhomogeneous boundary conditions on the droplets surface is discussed. For PDLC films with inhomogeneous boundary conditions at the polymer -- liquid crystal interface, asymmetry of the angular structure of
light
scattering with respect to the polar angle is revealed. Besides, experimental results on transmittance are presented.
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Держатели документа:
B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Nezalezhnastsi ave., Minsk, 220072 Belarus
L.V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences Krasnoyarsk,660036, Russia
Доп.точки доступа:
Loiko, V. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Konkolovich, A. V.; Miskevich, A. A.
}
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10.
Popov, E. A.
Temperature and field dependence of exciton-magnon absorption of NaMnCl//3. / E. A. Popov, M. M. Kotlyarskii, I. S. Edelman> // Physica Status Solidi B - Basic Research. - 1985. -
Vol. 132
,
Is. 2
. - P. 465-470 . - ISSN 0370-1972
Кл.слова (ненормированные):
BAND STRUCTURE
--
LIGHT
- Absorption
--
SODIUM COMPOUNDS - Optical Properties
--
EXCITON-MAGNON ABSORPTION
--
SODIUM MANGANESE CHLORIDE
--
MAGNETIC MATERIALS
Аннотация:
The behaviour of the optical absorption bands of NaMnCl//3 is experimentally studied in the region of the **6A//1//g to **4A//1//g, **4E//g(**4G) transition of the Mn**2** plus ion in the temperature range 1. 8 to 20 K and in magnetic fields up to 20 T. Exciton and its 'hot' magnon sidebands are observed in the spectrum. The anomalous temperature dependence of the exciton-magnon bands intensity is explained by participation of magnons with wave vector K does not equal 0 in absorption. The low energy exciton-magnon band is supposed to be due to simultaneous creation of an exciton and annihilation of three thermally created magnons.
Scopus
Доп.точки доступа:
Kotlyarskii, M. M.; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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11.
Slabko, V. V.
Resonant
light
-controlled self-assembly of ordered nanostructures / V. V. Slabko, A. S. Tsipotan, A. S. Aleksandrovsky> // Laser Optics 2012. - 2012. - Ст. ThR6-50. - P. 51
Материалы конференции
Доп.точки доступа:
Tsipotan, A. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Слабко, Виталий Васильевич; "Laser Optics", International conference (15 ; 2012 ; June ; 25-29 ; St. Petersburg); "Оптика лазеров", Международная конференция (15 ; 2012 ; июнь ; 25-29 ; Санкт-Петербург)
}
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12.
Linear and quadratic
magneto-optical effects observed in La0.7Sr0.3MnO3 thin films in transmitted
light
/ Y. E. Greben'kova [et al.]> // JETP Letters. - 2013. -
Vol. 98
,
Is. 8
. - P. 460-464,
DOI
10.1134/S0021364013210078 . - ISSN 0021-3640
Аннотация:
Magnetic linear dichroism (MLD) is observed in polycrystalline La0.7Sr0.3MnO3 films in transmitted
light
. The spectral and temperature dependences of the MLD are determined for the energy E of the
light
wave ranging from 1.5 to 3.5 eV. The experimental spectra are fitted by a sum of Lorentzian curves. The MLD spectrum exhibits more features in comparison to the spectra of magnetic circular dichroism (MCD), which we measured earlier using the same film samples. Various temperature behaviors of the intensities of the Lorentzian components centered at different E values have been revealed. This can be related to the effect of the surface states on the magneto-optical characteristics of the samples.
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Публикация на русском языке
Линейный и квадратичный магнитооптические эффекты в проходящем свете в тонких пленках La0.7Sr0.3MnO3. - [S. l. : s. n.]
Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Natl Univ Sci & Technol MISiS, Moscow 119049, Russia
Доп.точки доступа:
Greben'kova, Yu.E.; Гребенькова, Юлия Эрнестовна; Sokolov, A. E.; Соколов, Алексей Эдуардович; Edelman, I. S.; Эдельман, Ирина Самсоновна; Andreev, N. V.; Chichkov, V. I.; Mukovskii, Y. M.
}
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13.
Small-angle
light
scattering
and transmittance of polymer film, containing liquid crystal droplets with inhomogeneous boundary conditions / V. A. Loiko [et al.]> // J. Quant. Spectrosc. Radiat. Transf. - 2012. -
Vol. 113
,
Is. 18
. - P. 315-322,
DOI
10.1016/j.jqsrt.2012.03.026. - Cited References: 28 . - ISSN 0022-4073
РУБ
Spectroscopy
Рубрики:
NEMATIC DROPLETS
Кл.слова (ненормированные):
Liquid crystals
--
Light
scattering
--
Soft matter
--
Composite materials
--
Polymer-dispersed liquid crystal films
Аннотация:
Light
scattering by a monolayer of oriented liquid crystal (LC) droplets in polymer matrix is considered. A method for modeling transmittance and angular distribution of scattered
light
by a monolayer of LC droplets with cylindrical symmetry of the director configuration is developed. It is based on the anomalous diffraction and interference approximations. The internal structures of nematic LC droplets are calculated on base of the free energy minimization problem solution using the relaxation method. The results for monolayers of spherical LC droplets with homogeneous and inhomogeneous boundary conditions are obtained. It is shown that for monolayers containing droplets with inhomogeneous boundary conditions of the "tangential-normal" type there is an asymmetry of the angular structure of the transmitted
light
over the polar angle. (c) 2012 Elsevier Ltd. All rights reserved.
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Доп.точки доступа:
Loiko, V. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Maschke, U.; Konkolovich, A. V.; Miskevich, A. A.; Conference on Electromagnetic and
Light
Scattering (13 ; 2011 ; Sept. ; 26-30 ; Taormina, Italy)
}
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14.
Investigation of transmittance
and small-angle
light
scattering by monolayer of liquid crystal droplets with modified boundary conditions / V. A. Loiko [et al.]> // Mol. Cryst. Liquid Cryst. - 2012. -
Vol. 561
,
Is. 1
. - P. 194-202,
DOI
10.1080/15421406.2012.687237. - Cited References: 24 . - ISSN 1542-1406
РУБ
Crystallography
Рубрики:
NEMATIC DROPLETS
ANOMALOUS DIFFRACTION
APPROXIMATION
FILM
Кл.слова (ненормированные):
Light
modulation
--
light
scattering
--
polymer dispersed liquid crystal
--
optical transmittance
Аннотация:
A numerical method for modelling transmittance and angular distribution of
light
scattered by a Polymer Dispersed Liquid Crystal (PDLC) film, containing droplets with inhomogeneous boundary conditions, is proposed. It is based on the anomalous diffraction approximation and an interference approximation. The internal structures of nematic LC droplets are calculated on the basis of the free energy minimization problem solution using the relaxation method. The results for a monolayer of spherical LC droplets with modified boundary conditions caused by the local increase of the concentration of surface-active ions at the polymer-LC interface are discussed.
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Доп.точки доступа:
Loiko, V. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Konkolovich, A. V.; Misckevich, A. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Maschke, U.; International Topical Meeting: Optics of Liquid Crystals (14th ; Sept 25 - Oct 1, 2011 ; Yerevan, Armenia)
}
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15.
Vetrov, S. Y.
Optical Tamm states at the interface between a photonic crystal and a nanocomposite with resonance dispersion / S. Y. Vetrov, R. G. Bikbaev, I. V. Timofeev> // J. Exp. Theor. Phys. - 2013. -
Vol. 117
,
Is. 6
. - P. 988-998,
DOI
10.1134/S1063776113140185. - Cited References: 28. - This work was supported by the Ministry of Education and Science of the Russian Federation (state contract no. 14.V37.21.0730, federal program "Human Capital for Science and Education in Innovative Russia"); by the Presidium of the Siberian Branch, Russian Academy of Sciences (project no. 24.29); by the Ministry of Education and Science of the Russian Federation (contract no. 14V37.21.0730); by the Division of Physical Sciences, Russian Academy of Sciences (project no. Sh.9.5); by the Presidium of the Russian Academy of Sciences (project nos. 24.29 and 24.31); and by the Siberian Branch, Russian Academy of Sciences (project nos. 43 and 101). . - ISSN 1063-7761. - ISSN 1090-6509
РУБ
Physics, Multidisciplinary
Рубрики:
LIGHT
TRANSMISSION
MEDIA
LAYER
Аннотация:
Optical Tamm states localized at the edges of a photonic crystal bounded from one or both sides by a nanocomposite have been studied. The nanocomposite consists of metallic nanoinclusions, which have a spherical or orientationally ordered spheroidal shape and are dispersed in a transparent matrix, and is characterized by the resonant effective permittivity. The transmission, reflection, and absorption spectra have been calculated for waves with longitudinal and transverse polarizations in such structures at the normal incidence of
light
. The spectral manifestation of Tamm states that is due to the existence of negative values of the real part of the effective permittivity has been analyzed for the visible spectral range. It has been established that the characteristics of Tamm states localized at the edge of the photonic crystal depend strongly both on the concentration of nanoballs in the nanocomposite film and on its thickness. Modes formed by two coupled Tamm plasmon polaritons localized at the edges of the photonic crystal adjacent to two nanocomposite layers have been examined. It has been shown that, in the case of the anisotropic nanocomposite layer adjacent to the photonic crystal, each of two orthogonal polarizations of the incident wave corresponds to a specific frequency of the Tamm state localized at the edge; owing to this property, the transmission spectra of such a structure are polarization sensitive.
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Публикация на русском языке
Ветров, Степан Яковлевич. Оптические таммовские состояния на границе фотонного кристалла и нанокомпозита c резонансной дисперсией [Текст] / С. Я. Ветров [и др.] // Журн. эксперимент. и теор. физ. - 2013. - Т. 144 Вып. 6. - С. 1129-1139
Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Bikbaev, R. G.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ministry of Education and Science of the Russian Federation [14.V37.21.0730, 14V37.21.0730]; Presidium of the Siberian Branch, Russian Academy of Sciences [24.29]; Division of Physical Sciences, Russian Academy of Sciences [Sh.9.5]; Presidium of the Russian Academy of Sciences [24.29, 24.31]; Siberian Branch, Russian Academy of Sciences [43, 101]
}
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16.
Slabko, V. V.
Resonant
light
-controlled self-assembly of ordered nanostructures / V. V. Slabko, A. S. Tsipotan, A. S. Aleksandrovsky> // Photonics Nanostruct. - 2012. -
Vol. 10
,
Is. 4
. - P. 636-643,
DOI
10.1016/j.photonics.2012.06.002. - Cited References: 15. - This work has been supported by the Ministry of Education and Science of Russian Federation (Contract 16.740.11.0150 and Grant 2.1.1/3455), by RAS Projects 29 and 31, by PSB RAS Project 3.9.5, by SB RAS Projects 43 and 101, and by SFU Grant F12. . - ISSN 1569-4410
РУБ
Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Optics + Physics, Applied
Кл.слова (ненормированные):
Metal nanoparticles
--
Semiconductor nanoparticles
--
Self-assembly
--
Light
-induced processes
Аннотация:
The possibility of
light
-controllable formation of heterogeneous nanostructures containing resonant metallic and semiconductor nanoparticles is considered. Interaction energy between
light
-induced dipole polarization of nanoparticles at modest
light
intensity can be much more than the thermal motion energy. The configuration of self-assembled nanostructure can be controlled by the frequency and polarization of the
light
.
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Доп.точки доступа:
Tsipotan, A. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Слабко, Виталий Васильевич; International Workshop on Theoretical and Computational Nano-Photonics (4th ; 26-28 Oct 2011 ; Bad Honnef, Germany)
}
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17.
Photoluminescence tuning via
cation substitution in oxonitridosilicate phosphors: DFT calculations, different site occupations, and luminescence mechanisms / G. Li [et al.]> // Chem. Mater. - 2014. -
Vol. 26
,
Is. 9
. - P. 2991-3001,
DOI
10.1021/cm500844v. - Cited References: 62. - The authors would like to thank the Ministry of Science and Technology of Taiwan (Contract No. MOST 101-2113-M-002-014-MY3), the National Synchrotron Radiation Research Center, Taiwan, the National Natural Science Foundation of China (Grant No. NSFC 21301162), and the Fundamental Research Funds for the Central Universities (Grant No. CUG 130402) for financially supporting this research. Victor V. Atuchin gratefully acknowledges the Ministry of Education and Science of the Russian Federation for the financial support. . - ISSN 0897-4756. - ISSN 1520-5002
Перевод заглавия:
Управление фотолюминесценцией посредством замещения катионов в оксонитридосиликатных люминофорах: ТФП вычисления, заселения различных позиций и механизмы люминесценции
РУБ
Chemistry, Physical + Materials Science, Multidisciplinary
Рубрики:
LIGHT
-EMITTING-DIODES
HIGH-TEMPERATURE SYNTHESIS
LED CONVERSION PHOSPHORS
CRYSTAL X-RAY
WHITE-
LIGHT
ORDERED DISTRIBUTION
GREEN PHOSPHOR
LAYERED OXONITRIDOSILICATE
REAL STRUCTURE
AB-INITIO
Аннотация:
Tuning and optimizing luminescent properties of oxonitridosilicates phosphors are important for white
light
-emitting diode (WLED) applications. To improve the color rendering index, correlated color temperature and thermal stability of layer-structured MSi2O2N2:Eu (M = Sr, Ba) phosphors, cation substitutions have been used to adjust their luminescent properties. However, the underlying mechanisms are still unclear. In this research, a series of (Sr1-xBax)Si2O2N2:Eu (0 ≤ x ≤ 1) compounds were prepared by solid-state reaction, after which systematic emission variations were investigated. The crystal structures of (Sr1-xBax)Si2O2N2:Eu (0 ≤ x ≤ 1) are nominally divided into three sections, namely, Phase 1 (0 ≤ x ≤ 0.65), Phase 2 (0.65 x 0.80), and Phase 3 (0.80 ≤ x ≤ 1) based on the X-ray diffraction measurements. These experimental results are further confirmed by optimizing the crystal structure data with first-principle calculations. Continuous luminescence adjustments from green to yellow are observed in Phase 1 with gradual replacement of Sr2+ with Ba2+, and the abnormal redshift is clarified through extended X-ray absorption fine structure analysis. Sr(Eu)-O/N bond length shrinkage in local structure causes the redshift emission, and the corresponding luminescence mechanism is proposed. Controllable luminescence in Phase 2 (from blue to white) and Phase 3 (from cyan to yellowish green) are observed. Based on the high-resolution transmission electron microscopy and selected area electron diffraction analysis, the two kinds of luminescence tuning are attributed to phase segregation. This study serves as a guide in developing oxonitride luminescent materials with controllable optical properties based on variations in local coordination environments through cation substitutions.
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Держатели документа:
Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China
SB RAS, Lab Crystal Phys, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
SB RAS, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk 630090, Russia
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia
Univ St Andrews, Sch Chem, EaSTCHEM, St Andrews KY16 9ST, Fife, Scotland
Natl Cent Univ, Ctr Neutron Beam Applicat, Zhongli 320, Taiwan
Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan
Chongqing Univ Posts & Telecommun, Coll Math & Phys, Chongqing 400065, Peoples R China
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia
Доп.точки доступа:
Li, G.; Lin, C. C.; Chen, W.-T.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Atuchin, V. V.; Chiang, C.-Y.; Zhou, W.; Wang, C.-W.; Li, W.-H.; Sheu, H.-S.; Chan, T.-S.; Ma, C.; Liu, R.-S.
}
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18.
Traveling of
light
through a 1D photonic crystal containing a defect layer with resonant dispersion / S. Y. Vetrov [et al.]> // Opt. Spectrosc. - 2012. -
Vol. 113
,
Is. 5
. - P. 517-521,
DOI
10.1134/S0030400X12110070. - Cited References: 14. - The work was supported by the grants NSh-7810.2010.3, RNP.2.1.1.3455, no. 27.1 and no. 3.9.1 RAS, no. 5 and no. 144 SO RAS, and g/k 02.740.11.0220 of the federal targeted program "Scientific and Pedagogical Personnel of Innovative Russia." . - ISSN 0030-400X
РУБ
Optics + Spectroscopy
Рубрики:
2ND-HARMONIC GENERATION
MEDIA
MODE
Аннотация:
Spectral properties of a 1D photonic crystal that is comprised of two multilayered dielectric mirrors and a nanocomposite layer between them as a structural defect are studied. The nanocomposite consists of silver nanoballs dispersed in a transparent matrix and is characterized by an effective resonant permittivity. The spectral manifestation of the defect mode splitting for the s-polarized waves is studied as a function of the angle of incidence and concentration of nanoballs. Specific features of the transmission spectra for the s- and p-polarized waves are established for the angle of incidence equal to the Brewster angle of the seeding photonic crystal. It is shown, in particular, that, in the region of the continuous transmission spectrum of the spolarized waves, there arises an additional bandgap caused by mixing of the resonant mode with photonic modes.
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Публикация на русском языке
Прохождение света через одномерный фотонный кристалл с дефектным слоем с резонансной дисперсией [Текст] / С. Я. Ветров [и др.] // Оптика и спектроскопия : Наука, 2012. - Т. 113 № 5. - С. 571–575
Держатели документа:
[Vetrov, S. Ya.
Avdeeva, A. Yu.
Bikbaev, R. G.
Timofeev, I. V.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Vetrov, S. Ya.
Timofeev, I. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Vetrov, S.Ya.; Ветров, Степан Яковлевич; Avdeeva, A. Yu.; Bikbaev, R. G.; Timofeev, I. V.; Тимофеев, Иван Владимирович
}
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19.
Arkhipkin, V. G.
Switching from normal to anomalous dispersion in photonic crystal with Raman gain defect / V. G. Arkhipkin, S. A. Myslivets> // Opt. Lett. - 2014. -
Vol. 39
,
Is. 7
. - P. 1803-1806,
DOI
10.1364/OL.39.001803. - Cited References: 30. - This work was supported in part by the RAS Grants No. 24.29 and No. 24.31, by SB RAS Grants No. 43, No. 101, and by NSC of Taiwan and SB RAS through a joint project. . - ISSN 0146-9592. - ISSN 1539-4794
РУБ
Optics
Рубрики:
FAST
LIGHT
-PROPAGATION
SLOW
LIGHT
SUPERLUMINALITY
AMPLIFIER
CAVITY
SYSTEM
DELAY
Аннотация:
Propagation of a
light
through a one-dimensional photonic crystal containing a defect layer doped with a Raman gain medium is discussed. We demonstrate all-optically controlled switching from normal to anomalous dispersion in such a structure. A group delay for the transmitted probe (Raman) pulse is investigated. We show that the group velocity of a Raman pulse can be tuned from subluminal to superluminal by varying the intensity of the pump field. (C) 2014 Optical Society of America
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Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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20.
Arkhipkin, V. G.
Raman-induced gratings in atomic media / V. G. Arkhipkin, S. A. Myslivets> // Opt. Lett. - 2014. -
Vol. 39
,
Is. 11
. - P. 3223-3226,
DOI
10.1364/OL.39.003223. - Cited References: 29. - This work was supported in part by the RAS Grant No. 24.31, by SB RAS Grant Nos. 43 and 101, and by NSC of Taiwan and SB RAS through a joint project. . - ISSN 0146-9592. - ISSN 1539-4794
РУБ
Optics
Рубрики:
ELECTROMAGNETICALLY INDUCED TRANSPARENCY
OPTICS
LIGHT
Аннотация:
A novel type of electromagnetically induced gratings based on the Raman nonlinearity in the field of standing pump waves are proposed. Unlike electromagnetically induced absorption gratings, these gratings are based on the spatial modulation of Raman susceptibility. We present a theoretical study of the optical response of such a spatial periodically modulated three-level atomic medium. It is shown that transmission and reflection of a probe Raman wave can be simultaneously amplified in the grating. Transmission and reflection spectra can be controlled by varying the pump field intensity. The basic mechanism responsible for all-optical control of transmission and reflection in the samples of Raman driven atoms are discussed. (C) 2014 Optical Society of America
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Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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