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1.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Kostyukov, Artem S., Rasskazov, Ilia L., Gerasimov, Valeriy S., Polyutov, Sergey P., Karpov S. V., Ershov, Alexander E.
Заглавие
: Multipolar lattice resonances in plasmonic finite-size metasurfaces
Коллективы
: Russian Science FoundationRussian Science Foundation (RSF) [19-72-00066]
Место публикации
: Photonics. - 2021. - Vol. 8, Is. 4. - Ст.109. - ISSN 2304-6732(eISSN),
DOI
10.3390/photonics8040109
Примечания
: Cited References: 66. - The reported study was funded by the Russian Science Foundation project number 19-72-00066
Аннотация:
Collective lattice resonances in regular arrays of plasmonic nanoparticles have attracted much attention due to a large number of applications in optics and photonics. Most of the research in this field is concentrated on the electric dipolar lattice resonances, leaving higher-order multipolar lattice resonances in plasmonic nanostructures relatively unexplored. Just a few works report exceptionally high-Q multipolar lattice resonances in plasmonic arrays, but only with infinite extent (i.e., perfectly periodic). In this work, we comprehensively study multipolar collective lattice resonances both in finite and in infinite arrays of Au and Al plasmonic nanoparticles using a rigorous theoretical treatment. It is shown that multipolar lattice resonances in the relatively large (up to 6400 nanoparticles) finite arrays exhibit broader full width at half maximum (FWHM) compared to similar resonances in the infinite arrays. We argue that our results are of particular importance for the practical implementation of multipolar lattice resonances in different photonics applications.
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2.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Bulgakov E. N., Pichugin K. N., Sadreev A. F.
Заглавие
: Resonant binding of dielectric particles to a metal surface without
plasmonics
Коллективы
: Russian Foundation for Basic Research ProjectRussian Foundation for Basic Research (RFBR) [19-02-00055]
Место публикации
: Phys. Rev. A. - 2021. - Vol. 103, Is. 5. - Ст.L051501. - ISSN 2469-9926,
DOI
10.1103/PhysRevA.103.L051501. - ISSN 2469-9934(eISSN)
Примечания
: Cited References: 36. - The work was supported by Russian Foundation for Basic Research Project No. 19-02-00055
Предметные рубрики:
RADIATION PRESSURE
OPTICAL BINDING
FORCES
MANIPULATION
Аннотация:
A high index dielectric spherical particle supports the high-Q resonant Mie modes that result in a regular series of sharp resonances in the radiation pressure. The presence of a perfectly conducting metal surface transforms the Mie modes into extremely high-Q magnetic bonding or electric antibonding modes for the close approach of a sphere to a surface. We show that an electromagnetic plane wave with normal incidence results in repulsive or attractive resonant optical forces relative to a metal for the excitation of electric bonding or magnetic antibonding resonant modes, respectively. A magnitude of resonant optical forces reaches the order of 1 nN of magnitude for micron-sized silicon particles and a power of light 1mW/μm2 that exceeds the gravitational force by four orders. However, what is the most remarkable is there are steady positions for a sphere between the pulling and pushing forces that give rise to the resonant binding of the sphere to a metal surface.
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3.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Sorensen L. K., Utyushev A. D., Zakomirnyi V. I., Gerasimov V. S., Ershov A. E., Polyutov S. P., Karpov S. V., Agren H.
Заглавие
: Plasmonic enhancement of local fields in ultrafine metal nanoparticles
Место публикации
: J. Phys. Chem. C. - 2021. - Vol. 125, Is. 5. - P.13900-13908. - ISSN 19327447 (ISSN),
DOI
10.1021/acs.jpcc.1c01424
Примечания
: Cited References: 65. - The work was supported by the Russian Science Foundation (project no. 18-13-00363). L.K.S acknowledges the support of Carl Tryggers Stifetelse, project CTS 18-441
Аннотация:
We present an analysis of ultrafine metallic nanoparticles (1-15 nm) with respect to electromagnetic field generation by plasmonic excitations. A number of structures with different symmetries and geometries are studied in order to analyze the distributions of plasmonically generated near-electric fields and the concentration of hot and cold spots around the particles. The study is made possible by the recent development of an extended discrete interaction model (Ex-DIM) where the explicit dependency of the plasmonic spectra on the structure and composition of particles in the range of 1-15 nm is accounted for. With the Ex-DIM, the optical response of the internal crystal structure of the nanoscale particles can be visualized, thereby making it possible to predict the dependence of the generated local fields with respect to the position of the particles relative to the external field polarization. The results indicate rather surprising concentrations of the plasmon fields in very confined hot spots also in cases when the particles retain a high symmetry. The consequence of the findings of this study when using small symmetric nanoparticles for near-field imaging is briefly discussed.
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4.
Вид документа
: Статья из журнала (Препринт)
Шифр издания
:
Автор(ы)
: Ershov A. E., Gerasimov V. S., Bikbaev R. G., Polyutov S. P., Karpov S. V.
Заглавие
: Mode coupling in arrays of Al nanoparticles [Electronic resource]
Место публикации
: ArXiv. - 2020. - Ст.1912.12830
Вид и объем ресурса:
Electronic text data
Примечания
: Cited References: 78. - The reported study was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No.18-42-240013); A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676)
Аннотация:
The mechanisms of coupling between the lattice modes of a two-dimensional (2D) array consisting of Al nanoparticles and the localized modes of individual Al nanoparticles have been studied in detail. The results have been obtained employing the finite time difference method (FDTD) and the generalized Mie theory. It was shown that interactions of single particles with 2D lattice modes significantly change the extinction spectra depending on the particle radius and the lattice period. The Rayleigh anomalies of higher orders contribute to formation of hybrid modes resulting in increase of the extinction efficiency in short wavelength range of the spectrum. The patterns of spatial electromagnetic field distribution at the frequencies of hybrid modes have been studied. We note that comprehensive understanding the mode coupling mechanisms in arrays paves the way for engineering different types of modern photonic devices with controllable optical properties.
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5.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Ershov A. E., Gerasimov V. S., Bikbaev R. G., Polyutov S. P., Karpov S. V.
Заглавие
: Mode coupling in arrays of Al nanoparticles
Место публикации
: J. Quant. Spectrosc. Radiat. Transf. - 2020. - Vol. 248. - Ст.106961. - ISSN 00224073 (ISSN),
DOI
10.1016/j.jqsrt.2020.106961
Примечания
: Cited References: 81. - The reported study was funded by the grant of the President of Russian Federation (agreement 075-15-2019-676 ); the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No.18-42-240013); the State contract with Siberian Federal University for scientific research; Russian Science Foundation project number 19-72-00066 (investigation of finite size effects)
Аннотация:
The mechanisms of coupling between the lattice modes of a two-dimensional (2D) array consisting of Al nanoparticles and the localized modes of individual Al nanoparticles have been studied in detail. The results were obtained employing the finite-difference time-domain method (FDTD) and the generalized Mie theory. It was shown that interactions of single particles with 2D lattice modes significantly change the extinction spectra depending on the particle radius and the lattice period. The Rayleigh anomalies of higher orders contribute to formation of hybrid modes resulting in increase of the extinction efficiency in short wavelength range of the spectrum. It was shown that high intensity magnetic modes are excited in aluminum nanoparticles arrays. The patterns of spatial electromagnetic field distribution at the frequencies of hybrid modes have been studied. We note that comprehensive understanding the mode coupling mechanisms in arrays paves the way for engineering different types of modern photonic devices with controllable optical properties.
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6.
Вид документа
: Статья из сборника (выпуск продолж. издания)
Шифр издания
:
Автор(ы)
: Ershov A. E., Bikbaev R. G., Rasskazov I. L., Gerasimov V. S., Timofeev I. V., Polyutov S. P., Karpov S. V.
Заглавие
: Collective resonances in hybrid photonic-plasmonic nanostructures
Коллективы
: International Conference on Metamaterials and Nanophotonics
Место публикации
: J. Phys.: Conf. Ser. - 2020. - Vol. 1461, Is. 1. - Ст.012046. -
DOI
10.1088/1742-6596/1461/1/012046
Примечания
: Cited References: 11. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No. 18-42-240013); A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676)
Аннотация:
We present the theoretical model to predict the spectral position of Rayleigh anomalies emerged in hybrid system consisting of periodic array of plasmonic nanodisks embeded into the middle of defect layer of 1D photonic crystal (PhC). The spectral positions of these new emerged Rayleigh anomalies agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method.
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7.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Bhalla N., Taneja S., Thakur P., Sharma P. K., Mariotti D., Maddi C., Ivanova O. S., Petrov D. A., Sukhachev A. L., Edelman I. S., Thakur A.
Заглавие
: Doping independent work function and stable band gap of spinel ferrites with tunable plasmonic and magnetic properties
Место публикации
: Nano Lett. - 2021. - Vol. 21, Is. 22. - P.9780-9788. - ISSN 15306984 (ISSN),
DOI
10.1021/acs.nanolett.1c03767
Примечания
: Cited References: 41. - All authors would like to acknowledge support from EPSRC fund, award no. EP/R008841/1. Nikhil Bhalla wishes to thank Department of Economy, Northern Ireland, for supporting part of this work under GCRF Pump Priming Fund. Additionally, Atul Thakur and Preeti Thakur would like to acknowledge Gurujal, an initiative with district administration Gurugram for financial assistance from project no.176, Amity Incubation grant from the Ministry of Electronics and Information Technology (MeitY) under Technology Incubation and Development of Entrepreneurs (TIDE 2.0) program and the startup nanoLatticeX
Аннотация:
Tuning optical or magnetic properties of nanoparticles, by addition of impurities, for specific applications is usually achieved at the cost of band gap and work function reduction. Additionally, conventional strategies to develop nanoparticles with a large band gap also encounter problems of phase separation and poor crystallinity at high alloying degree. Addressing the aforementioned trade-offs, here we report Ni–Zn nanoferrites with energy band gap (Eg) of ≈3.20 eV and a work function of ≈5.88 eV. While changes in the magnetoplasmonic properties of the Ni–Zn ferrite were successfully achieved with the incorporation of bismuth ions at different concentrations, there was no alteration of the band gap and work function in the developed Ni–Zn ferrite. This suggests that with the addition of minute impurities to ferrites, independent of their changes in the band gap and work function, one can tune their magnetic and optical properties, which is desired in a wide range of applications such as nanobiosensing, nanoparticle based catalysis, and renewable energy generation using nanotechnology.
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8.
Вид документа
: Статья из сборника (однотомник)
Шифр издания
:
Автор(ы)
: Бикбаев, Рашид Гельмединович, Пыхтин Д. А., Ветров, Степан Яковлевич, Тимофеев, Иван Владимирович
Заглавие
: Плазмонные массивы для увеличения поглощения солнечного элемента на основе таммовского плазмон-поляритона
Коллективы
: Международная конференция по фотонике и информационной оптике, Российская академия наук, Национальный исследовательский ядерный университет "МИФИ"
Место публикации
: XI Международная конференция по фотонике и информационной оптике: сборник научных трудов. - Москва, 2022. - С. 145-146. - ISBN 978-5-7262-2842-6
Примечания
: Библиогр.:
Аннотация:
В работе исследовано влияние формы плазмонной решѐтки на поглощающую способность активного слоя в органическом солнечном элементе на основе таммовского плазмон-поляритона. Расчѐты выполнены в рамках теории связанных мод и подтверждены методом трансфер-матрицы. Показано, что наибольшее поглощение в активном слое достигается в случае гексагональной решѐтки.The influence of the plasmonic array type on the absorptivity of the active layer in a Tamm plasmon polariton based organic solar cell has been investigated in the framework of the temporal coupled mode theory and confirmed by the transfer matrix method. It has been shown that optimal absorption in the active layer is achieved in the case of hexagonal array.
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9.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Bhalla, Nikhil, Thakur, Atul, Edelman I. S., Ivantsov R. D.
Заглавие
: Endorsing a hidden plasmonic mode for enhancement of LSPR sensing performance in evolved metal–insulator geometry using an unsupervised machine learning algorithm
Место публикации
: ACS Phys. Chem. Au. - 2022. - Vol. 2, Is. 6. - P.459-467. - ISSN 2694-2445,
DOI
10.1021/acsphyschemau.2c00033
Примечания
: Cited References: 35
Аннотация:
Large-area nanoplasmonic structures with pillared metal–insulator geometry, also called nanomushrooms (NM), consist of an active spherical-shaped plasmonic material such as gold as its cap and silicon dioxide as its stem. NM is a geometry which evolves from its precursor, nanoislands (NI) consisting of aforementioned spherical structures on flat silicon dioxide substrates, via selective physical or chemical etching of the silicon dioxide. The NM geometry is well-known to provide enhanced localized surface plasmon resonance (LSPR) sensitivity in biosensing applications as compared to NI. However, precise optical phenomenon behind this enhancement is unknown and often associated with the existence of electric fields in the large fraction of the spatial region between the pillars of NM, usually accessible by the biomolecules. Here, we uncover the association of LSPR enhancement in such geometries with a hidden plasmonic mode by conducting magneto-optics measurements and by deconvoluting the absorbance spectra obtained during the local refractive index change of the NM and NI geometries. By the virtue of principal component analysis, an unsupervised machine learning technique, we observe an explicit relationship between the deconvoluted modes of LSPR, the differential absorption of left and right circular polarized light, and the refractive index sensitivity of the LSPR sensor. Our findings may lead to the development of new approaches to extract unknown properties of plasmonic materials or establish new fundamental relationships between less understood photonic properties of nanomaterials.
https://doi.org/10.1021/acsphyschemau.2c00033
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10.
Вид документа
: Статья из сборника (однотомник)
Шифр издания
:
Автор(ы)
: Popov A. K., Myslivets S. A., George T. F., Shalaev V. M.
Заглавие
: Tailoring transparency of negative-index metamaterials with parametric amplification
Коллективы
: International conference on metamaterials, photonic crystals and
plasmonics
Место публикации
: International Conference on Metamaterials, Photonic Crystals and
Plasmonics
(META’07): proceeding : Rome 22-24 October 2007/ ed. F. Bilotti and L. Vegni. - 2007. - p.256-258
Примечания
: Библиогр.: 11. - This work was supported in part by the ARO through grant W911NF-07-1-0261
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11.
Вид документа
: Статья из сборника (однотомник)
Шифр издания
:
Автор(ы)
: Popov A.K., Myslivets S.A.
Заглавие
: Nonlinear-Optical Metamirror
Коллективы
: International Conference on Metamaterials, Photonic Crystals and
Plasmonics
", NATO Research Workshop
Место публикации
: NATO Research Workshop "Meta 10 – 2nd International Conference on Metamaterials, Photonic Crystals and
Plasmonics
": 22-25 Fabriary 2010, Cairo-Egypt: Proceeding/ International Conference on Metamaterials, Photonic Crystals and
Plasmonics
", NATO Research Workshop (2 ; 2010 ; Egypt). - 2010
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12.
Вид документа
: Статья из сборника (однотомник)
Шифр издания
:
Автор(ы)
: Popov A.K., Myslivets S. A., Shalaev V.M.
Заглавие
:
Plasmonics
: Nonlinear optics, negative phase, and transformable transparency
Коллективы
:
Plasmonics
: Nanoimaging, Nanofabrication, and their Applications V
Место публикации
: Proceedings of SPIE - The International Society for Optical Engineering. - 2009. - Vol. 7395. - Ст.73950Z. - ISBN 0277786X (ISSN); 9780819476852 (ISBN),
DOI
10.1117/12.824836
Ключевые слова
(''Своб.индексиров.''): backward electromagnetic waves--negative-index metamaterials--optical parametric amplification--quantum control--backward electromagnetic waves--control fields--light wave--nanostructured composites--negative group velocity--negative phase--negative-index--negative-index metamaterials--optical energy transfer--optical parametric amplification--optical technique--plasmonic metamaterials--
plasmonics
--quantum control--cements--electromagnetic wave diffraction--electromagnetic wave scattering--electromagnetic waves--electromagnetism--energy transfer--light--metamaterials--nanophotonics--nonlinear optics--plasmons--transparency--amplification
Аннотация:
The feasibilities and specific features of coherent nonlinear-optical energy transfer from control fields to a negativephase signal are studied, and they are found to stem from the backwardness of electromagnetic waves inherent to negative-index metamaterials. Plasmonic metamaterials that possess negative group velocity for light waves promise a revolutionary breakthrough in nanophotonics. However, strong absorption inherent to such metaldielectric nanocomposites imposes severe limitations on the majority of such applications. Herein we show the feasibility and discuss different nonlinear-optical techniques of compensating such losses, producing transparency, amplification and even generation of negative-phase light waves in originally strongly absorbing microscopic samples of plasmonic metal-dielectric nanostructured composites. © 2009 SPIE.
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13.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Bikbaev R. G., Pykhtin D. A., Vetrov S. Ya., Timofeev I. V., Shabanov V. F.
Заглавие
: Nanostructured photosensitive layer for Tamm-plasmon-polariton-based organic solar cells
Место публикации
: Appl. Opt. - 2022. - Vol. 61, Is. 17. - P.5049-5054. - ISSN 1559128X (ISSN),
DOI
10.1364/AO.456413
Примечания
: Cited References: 47. - Council on Grants of the President of the Russian Federation (MK-46.2021.1.2)
Аннотация:
The influence of the volume fraction of plasmonic nanoparticles on the efficiency of the Tamm-plasmon-polariton-based organic solar cell is investigated in the framework of temporal coupled mode theory and confirmed by the transfer matrix method. It is shown that, unlike a conventional plasmonic solar cell, in which the efficiency is directly proportional to the volume fraction of nanoparticles in the photosensitive layer, the efficiency of the proposed solar cell reaches the highest value at low volume fractions. This effect is explained by the fact that at these volume fractions, the critical coupling condition of the incident field with the Tamm plasmon polariton is fulfilled. Thus, for the incoming radiation range of 350 to 500 nm, a maximal cell efficiency of 28% is achieved with a volume fraction of nanoparticles equal to 10%. Additionally, the optical properties of the photosensitive layer are compared for the cases of determining its complex refractive index by effective medium theory and the S-parameter retrieval method. A good agreement between the results is demonstrated, which encourages the use of the effective medium theory for preliminary calculations.
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14.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Ershov A. E., Gavrilyuk A. P., Karpov S. V.
Заглавие
: Plasmonic nanoparticle aggregates in high-intensity laser fields: effect of pulse duration
Место публикации
:
Plasmonics
: Springer, 2016. - Vol. 11, No. 2. - P.403-410. - ISSN 1557-1955,
DOI
10.1007/s11468-015-0054-8
Примечания
: Cited References: 20. - Authors are thankful to Prof. V.A. Markel (University of Pennsylvania) for supplying program codes with realization of coupled dipole method for polydisperse nanoparticle aggregates. This work was performed within the state contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2014 (Reference number 1792)
Предметные рубрики:
METAL NANOPARTICLES
Ключевые слова
(''Своб.индексиров.''): nanoparticle--surface plasmon--colloidal aggregate--optodynamics
Аннотация:
We use an optodynamic model to study the interaction of pulsed laser radiation of different duration with mono- and polydisperse dimers and trimers of plasmonic nanoparticles as resonant domains of colloid Ag multiparticle aggregates. A comparative analysis of the influence of pulse duration on the kinetic characteristics of domains accompanied by the change in their local structure was carried out taking into account the intensity of incident radiation. The obtained results explain the reasons for laser photochromic reactions in materials containing colloidal aggregates of plasmonic nanoparticles.
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15.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Tyurnev V. V.
Заглавие
: Resonances of electromagnetic oscillations in a spherical metal nanoparticle
Место публикации
: Microw. Opt. Technol. Lett.: Wiley-Blackwell, 2016. - Vol. 58, Is. 8. - P.1883-1886. - ISSN 0895-2477,
DOI
10.1002/mop.29930. - ISSN 1098-2760(eISSN)
Примечания
: Cited References:18
Предметные рубрики:
OPTICAL-PROPERTIES
LIGHT
Ключевые слова
(''Своб.индексиров.''):
plasmonics
--scattering--particles--resonators--resonant modes
Аннотация:
Electrodynamic analysis of plasma oscillations in a spherical metal nanoparticle is performed. It is shown that typical reduction in the frequency and quality factor of the resonances with increasing nanoparticle radius fades if the mode number grows. Depending on the particle radius, the resonant enhancement of the electric field might considerably either increase or decrease with increasing mode number. (C) 2016 Wiley Periodicals, Inc.
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16.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Venugopal N., Gerasimov V. S., Ershov A. E., Karpov S. V., Polyutov S. P.
Заглавие
: Titanium nitride as light trapping plasmonic material in silicon solar cell
Место публикации
: Opt. Mater.: Elsevier, 2017. - Vol. 72. - P.397-402. - ISSN 09253467 (ISSN),
DOI
10.1016/j.optmat.2017.06.035
Примечания
: Cited References: 56
Ключевые слова
(''Своб.индексиров.''): photovoltaics--
plasmonics
--titanium nitride
Аннотация:
Light trapping is a crucial prominence to improve the efficiency in thin film solar cells. However, last few years, plasmonic based thin film solar cells shows potential structure to improve efficiency in photovoltaics. In order to achieve the high efficiency in plasmonic based thin film solar cells, traditionally noble metals like Silver (Ag) and Gold (Au) are extensively used due to their ability to localize the light in nanoscale structures. In this paper, we numerically demonstrated the absorption enhancement due to the incorporation of novel plasmonic TiN nanoparticles on thin film Silicon Solar cells. Absorption enhancement significantly affected by TiN plasmonic nanoparticles on thin film silicon was studied using Finite-Difference-Time-Domain Method (FDTD). The optimal absorption enhancement 1.2 was achieved for TiN nanoparticles with the diameter of 100 nm. The results show that the plasmonic effect significantly dominant to achieve maximum absorption enhancement g(λ) at longer wavelengths (red and near infrared) and as comparable with Au nanoparticle on thin film Silicon. The absorption enhancement can be tuned to the desired position of solar spectrum by adjusting the size of TiN nanoparticles. Effect of nanoparticle diameters on the absorption enhancement was also thoroughly analyzed. The numerically simulated results show that TiN can play the similar role as gold nanoparticles on thin film silicon solar cells. Furthermore, TiN plasmonic material is cheap, abundant and more Complementary Metal Oxide Semiconductor (CMOS) compatible material than traditional plasmonic metals like Ag and Au, which can be easy integration with other optoelectronic devices.
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17.
Вид документа
: Статья из сборника (однотомник)
Шифр издания
:
Автор(ы)
: Popov A. K., Shalaev M. I., Myslivets S. A., Slabko V. V., Nefedov I. S.
Заглавие
: Enhancing coherent nonlinear-optical processes in nonmagnetic backward-wave materials
Коллективы
: International conference on metamaterials, photonic crystals and
plasmonics
Место публикации
: The 3th International Conference on Metamaterials, Photonic Crystals and
Plasmonics
(META’12): Proceedings. - 2012. - P.66
Аннотация:
Novel concepts of nonlinear-optical (NLO) photonic metamaterials (MMs) are proposed. They concern with greatly enhanced coherent NLO energy exchange between ordinary and backward waves (BWs) through the frequency-conversion processes. Two different classes of materials which support BWs are considered: crystals that support optical phonons with negative group velocity and MMs with specially engineered spatial dispersion. The possibility to replace plasmonic NLO MMs enabling magnetic response at optical frequencies, which are very challenging to engineer, by the ordinary readily available crystals, are discussed. The possibility to mimic extraordinary NLO frequency-conversion propagation processes attributed to negative-index MMs (NIMs) is shown in some of such crystals, if optical phonons with negative group velocity and a proper phase-matching geometry are implemented. Here, optical phonons are used as one of the coupled counterparts instead of backward electromagnetic waves (BEMWs). The appearance of BEMWs in metaslabs made of carbon nanotubes, the possibilities and extraordinary properties of BW second harmonic generation in such MMs is another option of nonmagnetic NIMs, which is described too. Among the applications of the proposed photonic materials is the possibility of creation of a family of unique BW photonic devices such as frequency doubling metamirror and Raman amplifiers with greatly improved efficiency.
Материалы конференции
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18.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Popov A. K., Shalaev M. I., Myslivets S. A., Slabko V. V., Nefedov I. S.
Заглавие
: Enhancing coherent nonlinear-optical processes in nonmagnetic backward-wave materials
Коллективы
: International conference on metamaterials, photonic crystals and
plasmonics
Место публикации
: Appl. Phys. A: Springer, 2012. - Vol. 109, Is. 4. - P.835-840. - ISSN 0947-8396,
DOI
10.1007/s00339-012-7390-8
Примечания
: Cited References: 35. - This work was supported in part by the U.S. National Science Foundation under Grant No. ECCS-1028353, by the US Air Force Office of Scientific Research under Grant No. FA9550-12-1-298; by the Presidium of the Russian Academy of Sciences under Project No. 24.31, by the Ministry of Science under Federal Research Program No. 14.V37.21.0730 and by the Siberian Division of the Russian Academy of Sciences and Siberian Federal University under Integration Project No. 101; and by the Academy of Finland and Nokia through the Center-of-Excellence program.
Предметные рубрики:
NEGATIVE-INDEX METAMATERIALS
LEFT-HANDED METAMATERIALS
2ND-HARMONIC GENERATION
PARAMETRIC AMPLIFICATION
COMPENSATING LOSSES
OSCILLATOR
Аннотация:
Novel concepts of nonlinear-optical (NLO) photonic metamaterials (MMs) are proposed. They concern with greatly enhanced coherent NLO energy exchange between ordinary and backward waves (BWs) through the frequency-conversion processes. Two different classes of materials which support BWs are considered: crystals that support optical phonons with negative group velocity and MMs with specially engineered spatial dispersion. The possibility to replace plasmonic NLO MMs enabling magnetic response at optical frequencies, which are very challenging to engineer, by the ordinary readily available crystals, are discussed. The possibility to mimic extraordinary NLO frequency-conversion propagation processes attributed to negative-index MMs (NIMs) is shown in some of such crystals, if optical phonons with negative group velocity and a proper phase-matching geometry are implemented. Here, optical phonons are used as one of the coupled counterparts instead of backward electromagnetic waves (BEMWs). The appearance of BEMWs in metaslabs made of carbon nanotubes, the possibilities and extraordinary properties of BW second harmonic generation in such MMs is another option of nonmagnetic NIMs, which is described too. Among the applications of the proposed photonic materials is the possibility of creation of a family of unique BW photonic devices such as frequency doubling metamirror and Raman amplifiers with greatly improved efficiency.
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19.
Вид документа
: Статья из сборника (однотомник)
Шифр издания
:
Автор(ы)
: Popov A. K., Shalaev M. I., Myslivets S. A., Slabko, V. V.
Заглавие
: Unidirectional Amplification and Shaping of Optical Pulses by Three-Wave Mixing with Negative Phonons
Коллективы
: International Conference on Metamaterials, Photonic Crystals and
Plasmonics
Место публикации
: The 4th International Conference on Metamaterials, Photonic Crystals and
Plasmonics
(META’13): Proceedings. - 2013. - P.35-40
Примечания
: Библиогр.: 30 назв.
Аннотация:
A possibility to greatly enhance frequency-conversion efficiency of stimulated Raman scattering is shown by making use of extraordinary properties of three-wave mixing of ordinary and backward waves. Such processes are commonly attributed to negative-index plasmonic metamaterials. This work demonstrates the possibility to replace such metamaterials that are very challenging to engineer by readily available crystals which support elastic waves with contradirected phase and group velocities. The main goal of this work is to investigate specific properties of indicated nonlinear optical process in short pulse regime and to show that it enables elimination of fundamental detrimental effect of fast damping of optical phonons on the process concerned. Among the applications is the possibility of creation of a family of unique photonic devices such as unidirectional Raman amplifiers and femtosecond pulse shapers with greatly improved operational properties.
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20.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Tkachenko V. A., Tsipotan A. S., Slabko V. V., Aleksandrovsky A. S.
Заглавие
: Three-dimensional model of quantum dots'' self-assembly under the action of laser radiation
Место публикации
: Комп. оптика: Институт систем обработки изображений РАН, 2017. - Т. 41, № 4. - С.577-580. - ISSN 0134-2452,
DOI
10.18287/2412-6179-2017-41-4-577-580
Примечания
: Библиогр.: 14. - The work was funded by the Russian Foundation for Basic Research (RFBR) and Krasnoyarsk Krai administration under research project No. 16-42-240410r_a, RFBR research project No. 16-32-00129 and by the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU).
Ключевые слова
(''Своб.индексиров.''): nanostructure fabrication--
plasmonics
--optical tweezers or optical manipulation
Аннотация:
This study considered a process of quantum dots' self-assembly into nanostructure arrays with predefined geometry, which proceeds in the external resonant laser field. We considered the simplest case of assembling a stable structure of two particles. The problem was solved numerically using a three-dimensional model of Brownian dynamics. The idea of the method is that the attraction of the dots occurs due to the interaction of resonantly induced dipole moments, with the dots being then captured by the Van der Waals force. Finally, a three-dimensional model was considered; the average nanoparticle aggregation time as a function of the laser radiation wavelength was calculated; the probability of such structures' being formed was estimated for the calculated average aggregation time and for the laser pulse duration used in the experiment. The wavelength of the maximum probability was found to be shifted from the single particle resonance wavelength of 525 nm to the red area of 535 nm, which is in qualitative agreement with the redshift of the resonance wavelength of interacting particles.
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