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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Glushkov А. А., Slyusareva E. A., Aleksandrovsky A. S., Tsipotan A. S., Slabko V. V.
Заглавие : Laser-induced interaction of multilevel quantum dots
Место публикации : J. Sib. Fed. Univ. Math. Phys. - 2017. - Vol. 10, Is. 1. - P.108-116. - ISSN 1997-1397, DOI 10.17516/1997-1397-2017-10-1-108-116; Журн. СФУ. Сер. "Математика и физика"
Примечания : Cited References: 26
Аннотация: A theoretical model is developed for describing the laser-induced interaction of a pair of multilevel semi- conductor quantum dots. Spectral dependencies of interaction energy are calculated in dipole-dipole ap- proximation for a pair of CdSe quantum dots in a quasi-resonant laser field, for cases of two identical quantum dots and those with differing transition wavelengths. Interaction energy of pair of multilevel quantum dots in the long-wavelength potential well is much higher than that of pair of two-level quan- tum dots. The increase of difference of resonance wavelengths of two interacting quantum dots leads to decrease of the potential well depthВ диполь-дипольном приближении произведен расчет энергетических спектров взаимодействия пары наночастиц CdSe в квазирезонансном лазерном поле для случаев двух одинаковых частиц и частиц с отличающимися длинами волн переходов. Показано, что учет дополнительных пе- реходов значительно увеличивает величину энергии взаимодействия для потенциальной ямы, лежащей в длинноволновой области спектра. На примере двух частиц с ограниченным числом резонансов исследовано влияние разности резонансных длин волн на глубину и положение потен- циальной ямы. Показано, что глубина потенциальной ямы уменьшается при увеличении разнос- ти резонансных длин волн переходов двух частиц
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Tkachenko V. A., Tsipotan A. S. , Myslivets S. A., Slabko V. V., Popov A. K.
Заглавие : Effects of losses and phase mismatch on transient processes in optical Parametric amplification through three-wave mixing of ordinary and backward electromagnetic waves
Коллективы : Progress in Electromagnetics Research Symposium
Место публикации : Progr. Electromag. Res. Symp. (PIERS): Abstracts. - 2017. - P. 933-934
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Malakhovskii A. V., Sokolov A. Е., Tsipotan A. S., Zharkov S. M., Zabluda V. N.
Заглавие : Magnetic circular dichroism of CdTe nanoparticles
Место публикации : Phys. Lett. A. - 2018. - Vol. 382, Is. 14. - P.980-983. - ISSN 03759601 (ISSN), DOI 10.1016/j.physleta.2018.02.012
Примечания : Cited References: 29. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 17-42-240080 and by Presidium RAS projects 0356-2018-0057 and 0356-2018-0061.
Ключевые слова (''Своб.индексиров.''): cdte--nanoparticles--magnetic circular dichroism
Аннотация: Magnetic circular dichroism (MCD) of water-soluble CdTe nanoparticles was observed in the visible spectral range for the first time. Diameter of nanoparticles varied from 2.3 to 4.5 nm. Absorption and photoluminescence spectra were also recorded. Absorption line at 19400 cm−1 and luminescent line at 18200 cm−1 were observed. Splitting of value 960 cm−1 was revealed in the MCD spectrum. Approximately the same splitting was extracted from the absorption spectrum. The MCD was identified as the temperature independent paramagnetic mixing effect. Nature of the absorption line and of its splitting are discussed.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Tsipotan A. S., Aleksandrovsky A. S., Slabko V. V.
Заглавие : Wavelength-controlled manipulation of colloidal quasi-resonant quantum dots under pulsed laser irradiation
Коллективы : Nanophotonics and Micro/Nano Optics
Место публикации : Proc. SPIE: SPIE, 2016. - Vol. 10027: Nanophotonics and Micro/Nano Optics III. - Ст.1002711. - , DOI 10.1117/12.2245386
Примечания : Cited References: 11. - The reported study was funded by RFBR and Government of Krasnoyarsk Territory according to the research project № 16-42-240410 and particularly supported by the Ministry of Education and Science of the Russian Federation (No. 3.1749.2014/K, 214/71 for Siberian Federal University); by RFBR research project No. 14-02-00219 A, 16-32-00129; by SB RAS Program №II.2P № 0358-2015-0012.
Ключевые слова (''Своб.индексиров.''): self-assembly--nanostructures--quantum dots--absorption spectra--dipole-dipole interaction--laser control
Аннотация: Production of nanostructures consisting of semiconductor nanoparticles (NPs) is of interest for number of applications. Development of new methods of NPs' manipulation and aggregation of NPs into nanostructures with pre-defined geometry is also of considerable interest from the fundamental point of view. Under laser irradiation with properly chosen wavelengths excitonic excitations of semiconductor NPs will be induced. Electrodynamical interaction between excited NPs is rather universal and allows formation of wide variety of nanostructures both of homo- and heterogeneous content. Theoretical approach for study of interaction of NPs' ensembles with laser light includes dipole-dipole approximation for NPs' attraction. Experimental results are obtained for TGA stabilized CdTe QDs with the excitonic resonance at 520 nm. Six different samples of the same colloid solution were irradiated at wavelengths from 540 to 570 nm. Modifications of absorption spectra of solutions after irradiation was detected, being most prominent at 555 and 560 nm irradiation wavelengths. Analysis of spectra shows that up to 47% of QDs were assembled into pairs with 10 nm inter-QD distance. Therefore, possibility of precise QDs manipulation via laser-induced electrodynamical interaction is demonstrated.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Tkachenko V. A., Tsipotan A. S., Aleksandrovskiy A. S., Slabko V. V.
Заглавие : Three-dimensional model of quantum dots' self-assembly under the laser field action
Коллективы : "Информационные технологии и нанотехнологии", Международная конференция и молодежная школа, Самарский национальный исследовательский университет им. акад. С.П. Королева, Институт систем обработки изображений РАН
Место публикации : Информационные технологии и нанотехнологии (ИТНТ-2017): сб трудов. - Самара, 2017. - Ст.100-103
Аннотация: This study considers the self-assembly process of quantum dots to nanostructures with the predefined geometry, which proceeds in the external resonant laser field within the three-dimensional model of Brownian dynamics. Average aggregation time of nanoparticles depending on the external field wavelength was calculated. The probability of such structures formation was estimated for the calculated average aggregation time and for the pulse duration of the laser used in the experiment
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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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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Kornienko V. S., Tkachenko V. A., Tsipotan A. S., Aleksandrovsky A. S., Slabko V. V.
Заглавие : Self-organized aggregation of a triple of resonant nanoparticles into stable structures with various shapes controlled by a laser field
Коллективы : International Conference on Metamaterials and Nanophotonics
Место публикации : J. Phys. Conf. Ser. - 2018. - Vol. 1092. - Ст.012153. - , DOI 10.1088/1742-6596/1092/1/012153
Примечания : Cited References: 5. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, and Krasnoyarsk Regional Fund of Science to the research project: «Optical binding as a mechanism for self-assembly of stable complex nanostructures from resonant nanoparticles» (project № 18-42-243008). V.V.S. is grateful for the support from Ministry of Education and Science of the Russian Federation (Grant № 3.6341.2017/6.7).
Ключевые слова (''Своб.индексиров.''): laser fields--quasi-resonant--stable structures
Аннотация: The method of formation of nanostructures consisting of three particles in the field of quasiresonant laser radiation is considered. To obtain structures, two approaches were used: a third particle is added to a pre-formed particlespair at a certain angle; the necessary structure is formed from three initially isolated particles. Numerically shown that it is possibleto assemble structures of line and pyramid using both previously mentioned approaches.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tsipotan A. S., Tkachenko V. A., Aleksandrovsky A. S., Slabko V. V.
Заглавие : Laser-induced self-assembly of quantum dots: Deterministic case versus brownian case
Место публикации : Photonics Nanostruc. Fundam. Appl. - 2020. - Vol. 40. - Ст.100791. - ISSN 15694410 (ISSN), DOI 10.1016/j.photonics.2020.100791
Примечания : Cited References: 23. - The reported study was funded by Russian Science Foundation (Grant 18-72-00003). V.V. Slabko is grateful for the support from the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU)
Аннотация: The process of aggregation of two colloidal quantum dots in the field of quasiresonant laser radiation is investigated via computer simulation. The cases of either completely deterministic movement of particles or the movement with the account for random forces are considered. The conditions of pair formation are determined in dependence on initial interparticle distance, on laser wavelength, and on their initial orientation with respect to polarization plane of laser radiation. It is shown that despite velocity of thermal motion dominates over the velocity of directional diffusion of quantum dots, the account for random forces weakly influences on the probability of pair formation, the latter being close to results obtained in the deterministic case. The reason for this weak influence of Brownian movement is the resonant increase of electrodynamics attraction force during certain time interval within the laser pulse.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Tkachenko V. A., Tsipotan A. S., Aleksandrovsky A. S., Slabko V. V.
Заглавие : Thermal influence in the process of self-assembly of quantum dots by quasi-resonant laser radiation
Коллективы : Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук", Институт физики им. Л.В. Киренского Сибирского отделения РАН, Сибирский федеральный университет, "Енисейская фотоника", Всероссийская научная конференция с международным участием
Место публикации : Енисейская фотоника-2020: тезисы докладов. - Красноярск: ИФ СО РАН, 2020. - P.94. - ISBN 978-5-6042995-8-6 (Шифр В34/Е 63-418308835)
Примечания : Cited References: 3
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Yadav A., Yadav N., Agrawal V., Polyutov S. P., Tsipotan A. S., Karpov S. V., Slabko V. V., Yadav V. S., Wu Y. L., Zheng H. Y., RamaKrishna S.
Заглавие : State-of-art plasmonic photonic crystals based on self-assembled nanostructures
Коллективы : Taishan Scholar scheme of Shandong Province, China [20190401]; Ministry of Science and Higher Education of Russian Federation [FSRZ-2020-0008]
Место публикации : J. Mater. Chem. C. - 2021. - Vol. 9, Is. 10. - P.3368-3383. - ISSN 2050-7526, DOI 10.1039/d0tc05254j. - ISSN 2050-7534(eISSN)
Примечания : Cited References: 127. - All the authors acknowledge the respective department for providing facilities and resources. We acknowledge funding support from Taishan Scholar scheme of Shandong Province, China (ts 20190401). SPP and SVK acknowledge support of the Ministry of Science and Higher Education of Russian Federation, project no. FSRZ-2020-0008
Аннотация: Controlled self-assembly of plasmonic photonic nanostructures provides a cost-effective and efficient methodology to expand plasmonic photonic nano-platforms with unique, tunable, and coupled optical characteristics. Keeping advantages and challenges in view, this review highlights contemporary advancements towards the development of self-assembly of a plasmonic photonic nanostructure using a colloidal solution and a self-assembly modeling technique along with exploring novel optical properties and associated prospects. The potential applications of self-assembled plasmonic photonic nano-systems to investigate next-generation optoelectronic devices, the need to reduce and increase scaling up aspects, and improve the performance, are also covered briefly in the review. The need of considerable efforts for the design and development towards establishing novel cost-effective methods to fabricate controlled self-assembled smart nano-plasmonic platforms is also highlighted in this mini-review. Key confronting issues that precisely limit the self-assemblies of photonic nanostructures and desired integration with other device components, mainly including uniformity within miniaturized devices are also discussed. This review will serve as a guideline and platform to plan advanced research in developing self-assembled plasmonic photonic nano-systems to investigate smart functional optical devices.
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