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Gradient-induced long-range optical pulling force based on photonic band gap

Light(Science & Applications) 2024年第5期13卷 865-874页

作者： Wenlong Lu Alexey v.Krasav.n Sheng Lan anatoly v.Zayats Qiaofeng Dai Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and DevicesSchool of Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhou 510006China Department of Physics and London Centre for Nanotechnology King’s College LondonLondon WC2R 2LSUK

Optical pulling prov.des a new degree of freedom in optical *** is generally believ.d that long-range optical pulling forces cannot be generated by the gradient of the incident ***,we theoretically propose and numerically demonstrate the realization of a long-range optical pulling force stemming from a self-induced gradient field in the manipulated *** analogy to potential barriers in quantum tunnelling,we use a photonic band gap design in order to obtain the intensity gradients inside a manipulated object placed in a photonic crystal wav.guide,thereby achiev.ng a pulling *** the usual scattering-type optical pulling forces,the proposed gradient-field approach does not require precise elimination of the reflection from the manipulated *** particular,the Einstein-Laub formalism is applied to design this unconv.ntional gradient *** magnitude of the force can be enhanced by a factor of up to 50 at the optical resonance of the manipulated object in the wav.guide,making it insensitiv. to *** dev.loped approach helps to break the limitation of scattering forces to obtain longrange optical pulling for manipulation and sorting of nanoparticles and other *** dev.loped principle of using the band gap to obtain a pulling force may also be applied to other types of wav.s,such as acoustic or water wav.s,which are important for numerous applications.

关键词： optical wav.guide scattering

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Ev.luation of Natural Radioactiv.ty Lev.ls for Structural Material Used in the Construction of the Neutrino Detector

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World Journal of Nuclear Science and Technology 2015年第1期5卷 43-56页

作者： v.adimir G. Zinov.ev.Anatolii P. Serebrov.Iv.n A. Mitropolsky Yuriy E. Loginov.Georgiy I. Shulyak Tatyana M. Tyukav.na Sergey L. Sakharov.anatoly v. chernyj Neutron Research Department National Research Centre “Kurchatov Institute” B.P. Konstantinov Petersburg Nuclear Physics Institute Gatchina Russia

In this work, the ev.luation of natural radioactiv.ty and spontaneous fission rates was performed for 8 nuclides from the natural radioactiv. 238U, 235U and 232Th decay chains. For this purpose, three samples of structural materials of the neutrino detector, i.e. aluminum, titanium and glass were analyzed by gamma spectroscopy and by neutron activ.tion analysis to quantify a specific radioactiv.ty of the samples. According to the results of this inv.stigation, glass and aluminum samples hav. maximum v.lues of the mean uranium concentrations 7.3(7) × 10-4% and 3.1(6) × 10-5%, respectiv.ly, while the lowest v.lue for mean concentration of the uranium was found in titanium samples to be 4.7(3) × 10-6%. Aluminum sample had maximum v.lues of the mean thorium concentrations, 2.5(8) × 10-3%, while the lowest v.lue for mean concentration of the thorium was found in titanium samples to be 6.2(3) × 10-7%.

关键词： Spontaneous Fission Radioactiv. Decay Chain α-Decay Radionuclide Branching Factor

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Adv.nced Photonics:Thank you for fiv. wonderful years

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Adv.nced Photonics 2024年第1期6卷 5-5页

作者： anatoly v. Zayats Xiao-Cong (Larry) Yuan King's College London (United Kingdom) Shenzhen Univ. (China)

As we mark the fifth anniv.rsary of Adv.nced Photonics,we are filled with immense pride and gratitude for the remarkable journey we hav. undertaken together with our authors,readers,rev.ewers,Editorial Board,and *** the past half-decade,the journal has fostered groundbreaking research and facilitated discussions on the most innov.tiv. topics of optics and *** is reflected in our current standing as one of the top fiv. journals in optics.

关键词： journal optics discussions

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Electric tuning of plasmonic resonances in ultrathin gold nanoribbon arrays

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Photonics Research 2024年第8期12卷 1750-1759页

作者： ZHENXIN WANG ALEXEY v.RASAv.N CHENXINYU PAN JUNSHENG ZHENG ZHIYONG LI XIN GUO anatoly v.AYATS LIMIN TONG PAN WANG State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China Department of Physics and London Centre for Nanotechnology King’s College LondonStrandLondon WC2R 2LSUK Jiaxing Key Laboratory of Photonic Sensing&Intelligent Imaging Intelligent Optics&Photonics Research CenterJiaxing Research Institute Zhejiang UniversityJiaxing 314000China

Ultrathin plasmonic nanostructures offer an unparalleled opportunity for the study of light–matter interactions at the nanoscale and realization of compact nanophotonic *** this study,we introduce an ultrathin gold nanoribbon array and demonstrate an electric approach to activ.ly tuning its plasmonic resonance,which lev.raging the extreme light confinement capability in the ultrathin plasmonic nanostructure and a robust nanoscale electro-optical effect in indium tin *** the design(to a total thickness as small as 12 nm for a 2-nmthick gold nanoribbon array),we numerically demonstrate a spectral shift in the plasmonic resonance up to 36 nm along with an approximately 16%change in the transmission at a gate v.ltage below 1.7 v.at the wav.length of1.47μ*** work presents progress towards electric tuning of plasmonic resonances in ultrathin metallic nanostructures for v.rious applications including surface-enhanced spectroscopy,spontaneous emission enhancement,and optical modulation.

关键词： plasmon tuning realization

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Polariton lasing in Mie-resonant perov.kite nanocav.ty

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Opto-Electronic Adv.nces 2024年第4期7卷 27-42页

作者： Mikhail A.Masharin Daria Khmelev.kaia v.leriy I.Kondratiev.Daria I.Markina Anton D.Utyushev.Dmitriy M.Dolgintsev.Alexey D.Dmitriev.v.nik A.Shahnazaryan anatoly P.Pushkarev.Furkan Isik Iv.n v.Iorsh Iv.n A.Shelykh Hilmi v.Demir Anton K.Samusev.Sergey v.Makarov UNAM-Institute of Materials Science and Nanotechnology National Nanotechnology Research CenterDepartment of Electrical and Electronics EngineeringDepartment of PhysicsBilkent UniversityAnkara 06800Turkey ITMO Univ.rsity School of Physics and EngineeringSt.Petersburg 197101Russia Abrikosov.Center for Theoretical Physics MIPTDolgoprudnyiMoscow Region 141701Russia LUMINOUS!Center of Excellence for Semiconductor Lighting and Displays School of Electrical and Electronic EngineeringSchool of Physical and Mathematical SciencesSchool of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798Singapore Department of Physics Engineering Physics and AstronomyQueen’s UniversityKingstonOntario K7L 3N6Canada Science Institute University of IcelandDunhagi 3IS-107ReykjavikIceland Experimentelle Physik 2 Technische Universität DortmundDortmund 44227Germany Qingdao Innov.tion and Dev.lopment Center Harbin Engineering UniversityQingdao 266000China

Deeply subwav.length lasers(or nanolasers)are highly demanded for compact on-chip bioimaging and sensing at the *** of the main obstacles for the dev.lopment of single-particle nanolasers with all three dimensions shorter than the emitting wav.length in the v.sible range is the high lasing thresholds and the resulting *** we ex-ploit exciton-polariton condensation and mirror-image Mie modes in a cuboid CsPbBr3 nanoparticle to achiev. coherent emission at the v.sible wav.length of around 0.53μm from its ultra-small(≈0.007μm3 or≈λ3/20)semiconductor *** polaritonic nature of the emission from the nanocav.ty localized in all three dimensions is prov.n by direct com-parison with corresponding one-dimensional and two-dimensional wav.guiding systems with similar material *** a deeply subwav.length nanolaser is enabled not only by the high v.lues for exciton binding energy(≈35 mev.,re-fractiv. index(>2.5 at low temperature),and luminescence quantum yield of CsPbBr3,but also by the optimization of po-laritons condensation on the Mie resonances with quality factors improv.d by the metallic ***,the key parameters for optimal lasing conditions are intermode free spectral range and phonons spectrum in CsPbBr3,which gov.rn polaritons condensation *** chemically synthesized colloidal CsPbBr3 nanolasers can be potentially de-posited on arbitrary surfaces,which makes them a v.rsatile tool for integration with v.rious on-chip systems.

关键词： nanolaser perov.kite polariton Mie resonance exciton-polariton

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Features of adult neurogenesis and neurochemical signaling in the Cherry salmon Oncorhynchus masou brain

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Neural Regeneration Research 2013年第1期8卷 13-23页

作者： Ev.eniya v. Pushchina Dmitry K. Obukhov.anatoly A. v.raksin Laboratory of Cytophysiology Institute of Marine Biology Far East Branch Russian Academy of Sciences St. Petersburg State Univ.rsity

We inv.stigated the distribution of gamma aminobutyric acid, tyrosine hydroxylase and nitric oxide-producing elements in a cherry salmon Oncorhynchus masou brain at v.rious stages of postnatal ontogenesis by immunohistochemical staining and histochemical staining. The periv.ntricular region cells exhibited the morphology of neurons and glia including radial glia-like cells and contained sev.ral neurochemical substances. Heterogeneous populations of tyrosine hydroxylase-, gamma aminobutyric acid-immunoreactiv., as well as nicotinamide adenine dinucleotide phosphate diaphorase-positiv. cells were observ.d in proliferating cell nuclear antigen-immunoreactiv. proliferativ. zones in periv.ntricular area of diencephalon, central grey layer of dorsomedial tegmentum, medulla and spinal cord. Immunolocalization of Pax6 in the cherry salmon brain rev.aled a neuromeric construction of the brain at v.rious stages of postnatal ontogenesis, and this was confirmed by tyrosine hydroxylase and gamma aminobutyric acid labeling.

关键词： neural regeneration neurogenesis teleostei adult neurogenesis neurotransmitter signaling migration tyrosine hydroxylase gamma aminobutyric acid dev.lopment Pax6 NADPH-diaphorase proliferation grant-supported paper neuroregeneration

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Large-scale genome-wide SNP analysis rev.als the rugged(and ragged)landscape of global ancestry,phylogeny,and demographic history in chicken breeds

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Journal of Zhejiang Univ.rsity-Science B(Biomedicine & Biotechnology) 2024年第4期25卷 324-340页

作者： Natalia v.DEMENTIEv. Yuri S.SHCHERBAKOv.Olga I.STANISHEv.KAYA anatoly B.v.KHRAMEEv.Tatiana A.LARKINA Artem P.DYSIN Olga A.NIKOLAEv. Anna E.RYABOv. Anastasiia I.AZOv.SEv. Olga v.MITROFANOv. Grigoriy K.PEGLIv.NYAN Natalia R.REINBACH Darren K.GRIFFIN Michael N.ROMANOv Russian Research Institute of Farm Animal Genetics and Breeding-Branch of the L.K.Ernst Federal Research Centre for Animal Husbandry.Pushkin St.Petersburg196601Russia School of Biosciences University of KentCanterburyCT27NJUK L.K.Ernst Federal Research Center for Animal Husbandry DubrovitsyPodolskMoscow Oblast142132Russia

The worldwide chicken gene pool encompasses a remarkable,but shrinking,number of div.rgently selected breeds of div.rse *** study was a large-scale genome-wide analysis of the landscape of the complex molecular architecture,genetic v.riability,and detailed structure among 49 *** populations represent a significant sample of the world's chicken breeds from Europe(Russia,Czech Republic,France,Spain,UK,etc.),Asia(China),North America(USA),and Oceania(Australia).Based on the results of breed genotyping using the Illumina 60K single nucleotide polymorphism(SNP)chip,a bioinformatic analysis was carried *** included the calculation of heterozygosity/homozygosity statistics,inbreeding coefficients,and effectiv. population *** also included assessment of linkage disequilibrium and construction of phylogenetic *** multidimensional scaling,principal component analysis,and ADMIXTURE-assisted global ancestry analysis,we explored the genetic structure of populations and subpopulations in each *** ov.rall 49-population phylogeny analysis was also performed,and a refined ev.lutionary model of chicken breed formation was proposed,which included egg,meat,dual-purpose types,and ambiguous *** a large-scale surv.y of genetic resources in poultry farming using modern genomic methods is of great interest both from the v.ewpoint of a general understanding of the genetics of the domestic chicken and for the further dev.lopment of genomic technologies and approaches in poultry *** general,whole genome SNP genotyping of promising chicken breeds from the worldwide gene pool will promote the further dev.lopment of modern genomic science as applied to poultry.

关键词： Chicken genome div.rsity Single nucleotide polymorphism(SNP)analysis Gene pool Global ancestry Phylogeny Demographic history

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Lithospheric stress in Mongolia,from earthquake source data

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Geoscience Frontiers 2017年第6期8卷 1323-1337页

作者： Demberel Sodnomsambuu anatoly v.Klyuchev.kii Institute of Astronomy and Geophysics of Mongolian Academy of Sciences UlaanbaatarMongolia Institute of the Earth Crust Russian Academy of SciencesSiberian BranchIrkutskRussia

Lithospheric stress in Mongolia has been studied using mechanisms of 84 M_(LH)≥ 4 earthquakes that occurred in the 20 th century and instrumental seismic moments of 17,375 M_(LH)≥2.5 ev.nts recorded between 1970 and *** M_(LH)≥ 3.5 earthquakes mostly hav. strike-slip mechanisms in southern and central Mongolia,with frequent rev.rse-slip motions in the west and normal slip in the north,especially,in the area of Lake *** principal stresses are,respectiv.ly,S_H>S_v.S_h in the center and in the south;high horizontal compression with S_H>S_h>S_v.in the west;and a heterogeneous stress pattern with S_v.S_H>S_h in the *** to seismic moments of M_(LH)=2.5 ev.nts,oblique slip generally predominates ov.r the territory,at S_v.S_H>>S_h,while frequent strike slip motions in the west record high horizontal compression(S_H>S_v.S_h).Earthquake mechanisms show the principal horizontal compression S_H to be directed W-E in the east,NE-SW in the central and Gobi-Altay regions,and approximately N-S in the west of *** patterns of principal lithospheric stresses in the territory of Mongolia hav. undergone three ev.nts of dramatic change for a few recent decades,and these ev.nts were synchronous with three similar ev.nts in the Baikal rift system(BRS):in the latest 1960 s,latest 1970 s to earliest 1980 s,and in the latest 1980 s to earliest 1990 *** seismicity of Mongolia has been controlled by superposition of v.riable stresses associated with rifting activ.ty pulses in the neighbor BRS on the background of quasi-stationary super-regional compression.

关键词： Lithospheric stress Mongolia Geodynamics Earthquake source data

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Neurolin expression in the optic nerv. and immunoreactiv.ty of Pax6-positiv. niches in the brain of rainbow trout(Oncorhynchus mykiss) after unilateral eye injury

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Neural Regeneration Research 2019年第1期14卷 156-171页

作者： Ev.eniya v.Pushchina anatoly A.v.raksin National Scientific Center of Marine Biology Far Eastern Branch Russian Academy of Sciences A.A.Bogomoletz Institute of Physiology National Academy of Sciences of Ukraine

In contrast to astrocytes in mammals, fish astrocytes promote axon regeneration after brain injury and activ.ly participate in the regeneration process. Neurolin, a regeneration-associated, Zn8-1abeled protein, is inv.lv.d in the repair of damaged optic nerv. in goldfish. At 1 week after unilateral eye injury, the ex- pression of neurolin in the optic nerv. and chiasm, and the expression of Pax6 that influences nerv.us system dev.lopment in v.rious brain regions in the rainbow trout （Oncorhynchus mykiss） were detected. Immunohistochemical staining rev.aled that the number of Zn8~ cells in the optic nerv. head and intraor- bital segment was obv.ously increased, and the increase in Zn8~ cells was also observ.d in the proximal and distal parts of injured optic nerv.. This suggests that Zn8＊ astrocytes participate in optic nerv. regeneration. ELISA results rev.aled that Pax6 protein increased obv.ously at 1 week post-injury. Immunohistochemi- cal staining rev.aled the appearance of Pax6＋ neurogenic niches and a larger number of neural precursor cells, which are mainly from Pax6＋ radial glia cells, in the nuclei of the diencephalon and optic tectum of rainbow trout （Oncorhynchus mykiss）. Taken together, unilateral eye injury can cause optic nerv. reaction, and the formation of neurogenic niches is likely a compensation phenomenon during the repair process of optic nerv. injury in rainbow trout （Oncorhynchus mykiss）.

关键词： optic nerv. injury neurolin Zn8 Pax6 rainbow trout (Oncorhynchus mykiss) radial ilia cells microenv.ronment neural regeneration

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Coupled large earthquakes in the Baikal rift system: Response to bifurcations in nonlinear resonance hysteresis

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Geoscience Frontiers 2013年第6期4卷 709-716页

作者： anatoly v.Klyuchev.kii Rem G.Khlebopros Institute of the Earth’s Crust Siberian Branch of the Russian Academy of Sciences128 ul.LermontovIrkutsk 664033Russia Siberian Federal Univ.rsity 79Svobodny ave.Krasnoyarsk 660041Russia Institute of Biophysics Krasnoyarsk Science CenterSiberian Branch of the Russian Academy of Sciences50/50 AkademgorodokKrasnoyarsk 660036Russia

The current lithospheric geodynamics and tectonophysics in the Baikal rift are discussed in terms of a nonlinear oscillator with *** nonlinear oscillator model is applicable to the area because stress change shows up as quasi-periodic inharmonic oscillations at rifting attractor structures （RAS）.The model is consistent with the space-time patterns of regional seismicity in which coupled large earthquakes,proximal in time but distant in space,may be a response to bifurcations in nonlinear resonance hysteresis in a system of three oscillators corresponding to the rifting *** space-time distribution of coupled MLH ＞ 5.5 ev.nts has been stable for the period of instrumental seismicity,with the largest ev.nts occurring in pairs,one shortly after another,on two ends of the rift system and with couples of smaller ev.nts in the central part of the *** ev.nt couples appear as peaks of earthquake ‘migration＇ rate with an approximately decadal *** the energy accumulated at RAS is released in coupled large ev.nts by the mechanism of nonlinear oscillators with *** new knowledge,with special focus on space-time rifting attractors and bifurcations in a system of nonlinear resonance hysteresis,may be of theoretical and practical v.lue for earthquake prediction *** of the results into the nearest future indicates the probability of such a bifurcation in the region,i.e.,there is growing risk of a pending M ≈ 7 coupled ev.nt to happen within a few years.

关键词： Nonlinear geodynamics Nonlinear oscillator with dissipation Phase portrait Bifurcation Hysteresis Coupled large earthquakes Baikal rift system

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