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Optical magnetic field enhancement using ultrafast azimuthally polarized laser beams and tailored metallic nanoantennas

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Photonics Research 2024年第5期12卷 1078-1092页

作者： RODRIGO MARTIN-HERNANDEZ LORENZ grUNEWALD LUIS SANCHEZ-TEjERINA LUIS PLAjA ENRIQUECONEjERO jARQUE CARLOS HERNANDEZ-GARCIA SEBASTIAN MAI grupo de Investigacion en Aplicaciones del Laser y Fotonica Departamento de Fisica AplicadaUniversidad de SalamancaE-37008 SalamancaSpain Unidad de Excelencia en Luz y Materia Estructuradas(LUMES) Universidad de SalamancaE-37008 SalamancaSpain Institute of Theoretical Chemistry Faculty of ChemistryUniversity of Vienna1090 ViennaAustria Vienna Doctoral School in Chemistry(DoSChem) Faculty of ChemistryUniversity of Vienna1090 ViennaAustria Departamento de Electricidad y Electrónica Universidad de Valladolid47011 ValladolidSpain

*** *** thank Valentina Shumakova,Elizaveta Gangrskaia,Alessandra Bellissimo,Audrius Pugzlys,and Andrius Baltu?ka for fruitful discussions and computational support by the Vienna Scientific Cluster(VSC 4).The authors thankfully acknowledge the computer resources at MareNostrum and SCAYLE,and the technical support provided by Barcelona Supercomputing Center(RES-FI-2022-3-0041).R.M.-H.,L.S.-T.,L.P.,E.C.j.,and C.H.-*** funding from the European Research Council(ERC)under the European Union’s Horizon 2020 research and innovation program(grant Agreement No.851201)and support from Ministerio de Ciencia e Innovación(PID2022-142340NB-I00,PID2019-106910GB-I00).This research was funded in whole or in part by the Austrian Science Fund(FWF)(10.55776/ZK91).For open access purposes,the author has applied a CC BY public copyright license to any author accepted manuscript version arising from this submission.

关键词： metallic polarized discussions

微波等离子体化学气相沉积法在硅片上同时生长碳化硅和金刚石

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新型炭材料 2008年第3期23卷 250-258页

作者：唐春玖符连社 A.j.S.Fernandes M.j.Soares Gil Cabral A.j.Neves j.grácio Center for Mechanical Technology and Automation and Department of Mechanical Engineering University of Aveiro Department of Physics and CICECO University of Aveiro Department of Physics University of Aveiro

研究了衬底温度、核化密度、衬底表面预处理等工艺参数对微波等离子体化学气相沉积法在硅片上同时生长碳化硅和金刚石的影响。采用扫描电镜、X-射线衍射、喇曼光谱和红外光谱对样品进行了表征。结果表明:从高核化密度生长的金刚石膜中... 详细信息

研究了衬底温度、核化密度、衬底表面预处理等工艺参数对微波等离子体化学气相沉积法在硅片上同时生长碳化硅和金刚石的影响。采用扫描电镜、X-射线衍射、喇曼光谱和红外光谱对样品进行了表征。结果表明:从高核化密度生长的金刚石膜中探测不到碳化硅;不论对硅衬底进行抛光预处理还是未抛光预处理,从低核化密度生长的金刚石厚膜中总能探测到碳化硅。碳化硅生长在硅衬底上未被金刚石覆盖的地方,或者是在金刚石晶核之间的空洞处。碳化硅形成和金刚石生长是同时发生的两个竞争过程。此研究结果为制备金刚石和碳化硅复合材料提供了一种新的方法。

关键词：碳化硅金刚石厚膜红外光谱微波等离子体气相化学沉积

Novel method of screw extrusion for fabricating Al/Mg(macro-) composites from aluminum alloy 6063 and magnesium granules

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Transactions of Nonferrous Metals Society of China 2014年第12期24卷 3886-3893页

作者： Kristian gr tta SKORPEN Eirik MAUL Oddvin REISO Hans j rgen ROVEN Department of Materials Science and Engineering Norwegian University of Science and Technology R&D Materials Technology Hydro Aluminium AS Center for Advanced Materials Qatar University

A novel method of screw extrusion was used for producing a bimetal composite Al/Mg from granules containing aluminium alloy 6063 （AA6063） and commercial pure magnesium. Up to 12.5%（mass fraction） pure magnesium was added to the aluminium alloy. In general, the material consisted of a fine grained microstructure. In addition to the phases originating from the input materials, intermetallic phases were observed as islands consisting of the Al2Mg3 phase surrounded byγ-Mg17Al12, throughout the microstructure. The mechanical properties of the extruded material showed a gradual increase in strength with increasing the addition of Mg. The highest registered UTS, well above 350 MPa, was observed for the material containing 10%Mg. Examinations of the fracture surfaces indicated that increasing the magnesium content led to a higher degree of brittle fracture and a gradual change of the fracture micro-mechanisms. The optimization of the post-extrusion processing conditions is still ongoing.

关键词： Al/Mg composites extrusion microstructure mechanical properties

全球星(GLOBALSTAR)的姿态和轨道控制

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控制工程（北京） 1999年第3期 20-26页

作者： Alexander R Brüderle E gr.gor.E Schrempp W. Widmann H 潘科炎

本文简介由48颗低轨道卫星组成的全球星通信卫星的姿态和轨道控制。姿态控制功能使卫星天线指向地球,同时使卫星按预定的方式绕偏航轴转动。这就是说,尽管卫星有52°轨道倾角,仍要通过绕太阳帆板轴的另一种旋转机动(即偏航机动)来控制帆... 详细信息

本文简介由48颗低轨道卫星组成的全球星通信卫星的姿态和轨道控制。姿态控制功能使卫星天线指向地球,同时使卫星按预定的方式绕偏航轴转动。这就是说,尽管卫星有52°轨道倾角,仍要通过绕太阳帆板轴的另一种旋转机动(即偏航机动)来控制帆板,使之始终垂直于太阳方向定向。文中还介绍了其他工作模式:如从900km轨道自主升轨到1400km的自动变轨模式,还有故障检测和恢复算法等。Globalstar控制系统的基本单元包括:采用磁强计以及太阳和地球敏感器的姿态控制单元;采用四个反作用轮的偏航机动控制单元,用两个磁力矩器为飞轮卸载。DSS公司(多尼尔卫星系统公司)在其全球星姿态和轨道控制系统设计中采用了与其科学卫星ROSAT(伦琴卫星)极相似的设计方案,ROSAT卫星已在轨运行了7年多时间。全球星的软件和分系统试验以其成熟的科学和通信卫星的方案为基础,但试验的自动化程度更高,以满足飞行部件大批量生产的要求。

关键词：全球星通信卫星姿态控制轨道控制

紧凑型荧光灯的色度特性与点燃时间和功率的关系

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照明工程学报 2000年第3期11卷 60-61页

作者： S.gor j.Sandoval 刘慧杨臣铸

Differential colour-ring loss among Dalmatian Pelican(Pelecanus crispus) colonies and its consequence on survival estimates

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Avian Research 2024年第1期15卷 66-71页

作者： Anastasios Bounas Giorgos Catsadorakis Dionyssia Hatzilacou Theodoros Naziridis jocelyn Champagnon Alain j.Crivelli Department of Biological Applications and Technology University of IoanninaIoanninaGreece Society for the Protection of Prespa Agios GermanosGreece Natural Environment and Climate Change Agency 207 Mesogeion Ave.11525AthensGreece Natural Environment and Climate Change Agency Kerkini BranchKerkiniGR-62055Kato PoroiaGreece Tour du Valat Research Institute for Conservation of Mediterranean Wetlands13200ArlesFrance

The analysis of bird ringing data often comes with some potential sources of error and bias,as ring wear and/or loss could affect mark-recapture analyses and produce erroneous estimates of ***,ring wear and loss rates may differ between and within species based on the habitat they use or the species’ life-history traits and behaviour as well as the type of the *** this study we use resighting data from a long-term double marking experiment to directly estimate the rate of colour-ring loss among different Dalmatian Pelican colonies over time,evaluate any possible factors that could contribute to differential ring loss and assess how it may bias the results of mark-resighting *** on 14,849 resightings from 1275 individuals and using multi-state continuous-time hidden Markov models(HMMs) we showed that probability of ring loss was markedly different among colonies,ranging from 0.10 to 0.42 within the first year of marking,whereas the cumulative probability of losing a ring after ten years ranged 0.64 to *** rates are among the highest estimated when compared to previous studies in *** approach assessing the intra-specific variance in ring loss provided several factors potentially involved,such as the use of glue and the fledgling age accuracy and we could further hypothesise the effect of environmental ***,our results showed that ring loss can be a significant challenge for the assessment of the species’ population dynamics using mark-recapture methods as survival was consistently underestimated when not accounting for ring loss and varied significantly among different colonies.

关键词： Bias Capture-mark-recapture Colour-ring Double-marking Hidden Markov models

The Soft X-ray Imager(SXI)on the SMILE Mission

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Earth and Planetary Physics 2024年第1期8卷 5-14页

作者： S.Sembay A.L.Alme D.Agnolon T.Arnold A.Beardmore A.Belén Balado Margeli C.Bicknell C.Bouldin G.Branduardi-Raymont T.Crawford j.P.Breuer T.Buggey G.Butcher R.Canchal j.A.Carter A.Cheney Y.Collado-Vega H.Connor T.Crawford N.Eaton C.Feldman C.Forsyth T.Frantzen G.Galgóczi j.Garcia G.Y.Genov C.gordillo H-P.gröbelbauer M.Guedel Y.Guo M.Hailey D.Hall R.Hampson j.Hasiba O.Hetherington A.Holland S-Y.Hsieh M.W.j.Hubbard H.jeszenszky M.jones T.Kennedy K.Koch-Mehrin S.Kögl S.Krucker K.D.Kuntz C.Lakin G.Laky O.Lylund A.Martindale j.Miguel Mas Hesse R.Nakamura K.Oksavik N.Østgaard H.Ottacher R.Ottensamer C.Pagani S.Parsons P.Patel j.Pearson G.Peikert F.S.Porter T.Pouliantis B.H.Qureshi W.Raab G.Randal A.M.Read N.M.M.Roque M.E.Rostad C.Runciman S.Sachdev A.Samsonov M.Soman D.Sibeck S.Smit j.Søndergaard R.Speight S.Stavland M.Steller TianRan Sun j.Thornhill W.Thomas K.Ullaland B.Walsh D.Walton C.Wang S.Yang School of Physics and Astronomy University of LeicesterLeicesterLE17RHUK Space Park Leicester University of LeicesterLeicesterLE17RHUK Mullard Space Science Laboratory University College LondonDorkingRH56NTUK Centre for Electronic Imaging Open UniversityMilton KeynesMK76 AAUK Birkeland Centre for Space Science Department of Physics and TechnologyUniv.of BergenN-5007 BergenNorway University of Vienna A-1010 ViennaAustria Space Research Institute Austrian Academy of SciencesA-8042 GrazAustria National Institute of Aerospace Technology MadridSpain ESTEC European Space Agency2201 AZ NoordwijkNetherlands State Key Laboratory of Space Weather National Space Science CentreBeijing 100190China University of Applied Sciences and Arts Northwestern Switzerland CH-5210 WindischSwitzerland Koegl Space GmbH CH-8157 DielsdorfSwitzerland Space Acoustics GmbH CH-8157 DielsdorfSwitzerland Zurich University of Applied Sciences 8400 WinterhurSwitzerland Genov Solutions N-5172 LoddefjordNorway STM Engineering N-5165 LaksevagNorway john Hopkins University Applied Physics Laboratory MD 20723USA NASA/Goddard Space Flight Centre MD 20771USA Center for Space Physics Boston UniversityBostonMA 02215USA Department of Theoretical Physics and Astrophysics Masaryk University60177 BrnoCzech Republic Institute of Physics E¨otvo¨s Lor´and University1053 BudapestHungary Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100045China Centro de Astrobiologia(CAB) CSIC-INTAMadridSpain

The Soft X-ray Imager(SXI)is part of the scientific payload of the Solar wind Magnetosphere Ionosphere Link Explorer(SMILE)*** is a joint science mission between the European Space Agency(ESA)and the Chinese Academy of Sciences(CAS)and is due for launch in *** is a compact X-ray telescope with a wide field-of-view(FOV)capable of encompassing large portions of Earth’s magnetosphere from the vantage point of the SMILE *** is sensitive to the soft X-rays produced by the Solar Wind Charge eXchange(SWCX)process produced when heavy ions of solar wind origin interact with neutral particles in Earth’s *** provides a mechanism for boundary detection within the magnetosphere,such as the position of Earth’s magnetopause,because the solar wind heavy ions have a very low density in regions of closed magnetic field *** sensitivity of the SXI is such that it can potentially track movements of the magnetopause on timescales of a few minutes and the orbit of SMILE will enable such movements to be tracked for segments lasting many *** is led by the University of Leicester in the United Kingdom(UK)with collaborating organisations on hardware,software and science support within the UK,Europe,China and the United States.

关键词： Soft X-ray Imaging micropore optics large area CCD

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洞穴沉积物、石灰华和古气候

地理译报 1991年第4期10卷 31-35页

作者： G.j.Hennig R.grn K.Brunnacker 徐建辉

本文收集了660个洞积物和140个泉水石灰华的年代数据,其中许多尚未发表。这些数据可以画成柱状图和35万年以来的误差加权频率曲线。这些图式清楚地表示出洞积物和石灰华的生长期和休止期。洞积物生长最迅速的时期在距今13万年—9万年之... 详细信息

本文收集了660个洞积物和140个泉水石灰华的年代数据,其中许多尚未发表。这些数据可以画成柱状图和35万年以来的误差加权频率曲线。这些图式清楚地表示出洞积物和石灰华的生长期和休止期。洞积物生长最迅速的时期在距今13万年—9万年之间和1.5万年以来。年代超过15万年的,则由于缺乏充分的数据以及所掌握数据的不甚确切而至今尚未搞清。这与U28—238深海钻孔的氧同位素记录相对比,具有很好的关系。

关键词：洞穴沉积物石灰华古气候

First-principles calculations to investigate structural,electronic,magnetic,optical and thermodynamic properties of RE_(2)Rh_(3)Ge(RE=Pr,Sm)

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journal of Rare Earths 2024年第7期42卷 1385-1393,I0007页

作者： A.Ezaier R.Masrour M.Hamedoun j.Kharbach A.Rezzouk A.Hourmatallah N.Benzakour K.Bouslykhane Laboratory of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In this paper,we analyzed the physical characteristics of the ternary alloys RE_(2)Rh_(3)Ge(RE=Pr and Sm)using the first principles calculation based on functional density theory integrated in the Wien2k *** calculated formation energies of Pr_(2)Rh_(3)Ge and Sm_(2)Rh_(3)Ge are−5.3827 and−5.2782 eV/atom,respectively,showing that these alloys may exist *** results of the band structure and density of states indicate that all of the compounds tested are magnetic metals,and their magnetism is mostly related to the contribution of Pr and Sm *** total magnetic moments of Pr_(2)Rh_(3)Ge and Sm_(2)Rh_(3)Ge are 4.07245 and 11.16161μB/f.u,*** parameters such as heat capacity at constant pressure,entropy,Debye temperature,lattice volume,compressibility coefficients,and grüneisen parameter alloys were calculated using the Gibbs algorithm and studied in depth over a large temperature range of 0-900 *** Debye temperature increases with increasing pressure and decreases with decreasing ***,the Debye temperatures calculated at p=0 GPa and T=300 K are equal to be 342 and 322 K for Pr_(2)Rh_(3)Ge and Sm_(2)Rh_(3)Ge,*** optical characteristics such as the real and imaginary portions of the dielectric function,the absorption coefficient,the energy-loss function,and the refractive index were investigated and discussed in more depth.

关键词： Magnetic metals Functional density theory Density of states Magnetic moment Optical and thermodynamic properties Rare earths