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Long-lived electron emission reveals localized plasmon modes in disordered nanosponge antennas

Light(Science & Applications) 2017年第1期6卷 458-465页

作者： Germann Hergert jan Vogelsang Felix Schwarz Dong Wang Heiko Kollmann Petra Groß Christoph Lienau Erich Runge Peter Schaaf Carl von Ossietzky Universität Institut für PhysikCenter of Interface ScienceD-26129 OldenburgNiedersachsenGermany Technische Universität Ilmenau Institut für Physik and Institut für Mikro-und Nanotechnologien MacroNano®D-98693 IlmenauThüringenGermany Technische Universität Ilmenau Institut für Mikro-und Nanotechnologien MacroNano®and Institut für WerkstofftechnikFachgebiet Werkstoffe der ElektrotechnikD-98693 IlmenauThüringenGermany Forschungszentrum Neurosensorik Carl von Ossietzky UniversitätD-26111 OldenburgNiedersachsenGermany

We report long-lived,highly spatially localized plasmon states on the surface of nanoporous gold nanoparticles—nanosponges—with high excitation *** is well known that disorder on the nanometer scale,particularly in two-dimensional systems,can lead to plasmon localization and large field enhancements,which can,in turn,be used to enhance nonlinear optical effects and to study and exploit quantum optical ***,we introduce promising,three-dimensional model systems for light capture and plasmon localization as gold nanosponges that are formed by the dewetting of gold/silver bilayers and *** study light-induced electron emission from single nanosponges,a nonlinear process with exponents of n≈5...7,using ultrashort laser pulse excitation to achieve femtosecond time *** long-lived electron emission process proves,in combination with optical extinction measurements and finite-difference time-domain calculations,the existence of localized modes with lifetimes of more than 20 *** electrons couple efficiently to the dipole antenna mode of each individual nanosponge,which in turn couples to the ***,individual gold nanosponges are cheap and robust disordered nanoantennas with strong local resonances,and an ensemble of nanosponges constitutes a meta material with a strong polarization independent,nonlinear response over a wide frequency range.

关键词： disorder-induced plasmon localization nanoantennas nanoporous gold nanoparticles ultrafast photoemission spectroscopy

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应用CH4／N2指标估算塔里木盆地天然气热成熟度

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地学前缘 2008年第1期15卷 209-216页

作者：刘全有 Bernhard M.Krooss 刘文汇戴金星金之钧 Ralf Littke jan Hollenstein 中国石化石油勘探开发研究院北京100083 Lehrstuhl for Geologie Geochemie und I.agerst~tten des Erdols und der KohleRWTH-AachenGermany 中国石油勘探开发研究院北京100083

通过对塔里木盆地满加尔凹陷低成熟煤岩在开放在线程序升温体系的热模拟实验,获得煤岩在不同温度点的热分解产物CH4、CO和N2,并对模拟后残留产物进行了镜质体反射率测试,建立了镜质体反射率与对应受热温度之间的关系。煤岩镜质体反射率... 详细信息

通过对塔里木盆地满加尔凹陷低成熟煤岩在开放在线程序升温体系的热模拟实验,获得煤岩在不同温度点的热分解产物CH4、CO和N2,并对模拟后残留产物进行了镜质体反射率测试,建立了镜质体反射率与对应受热温度之间的关系。煤岩镜质体反射率与热温度之间的二阶关系表达为:Ro=0.0014×T+0.109,r=0.9931(Ro0.6%)。通过上述方程建立CH4/N2值与煤岩镜质体反射率之间的对应关系,并利用CH4/N2值对塔里木盆地库车坳陷天然气热成熟度进行了预测。预测结果与实际地质分析结果相吻合,说明CH4/N2值可以作为塔里木盆地煤成气热成熟度预测指标应用于油气勘探中。

关键词：塔里木盆地煤成气 CH4/N2值热成熟度

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Thermally stimulated exciton emission in Si nanocrystals

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Light(Science & Applications) 2017年第1期6卷 228-234页

作者： Elinore MLD de Jong Huub Rutjes jan Valenta M Tuan Trinh Alexander N Poddubny Irina N Yassievich Antonio Capretti Tom Gregorkiewicz van der Waals-Zeeman Institute University of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands Department of Chemical Physics and Optics Faculty of Mathematics and PhysicsCharles UniversityKe Karlovu 312116 Prague 2Czech Republic Department of Electrical Engineering and Computer Science University of Michigan2200 Bonisteel BlvdAnn ArborMI 48109USA Ioffe Institute Russian Academy of Sciences26 Polytechnicheskaya194021 St PetersburgRussia

Increasing temperature is known to quench the excitonic emission of bulk silicon,which is due to thermally induced dissociation of ***,we demonstrate that the effect of temperature on the excitonic emission is reversed for quantumconfined silicon *** laser-induced heating of silicon nanocrystals embedded in SiO2,we achieved a more than threefold(4300%)increase in the radiative(photon)emission *** theoretically modeled the observed enhancement in terms of the thermally stimulated effect,taking into account the massive phonon production under intense *** results elucidate one more important advantage of silicon nanostructures,illustrating that their optical properties can be influenced by *** also provide an important insight into the mechanisms of energy conversion and dissipation in ensembles of silicon nanocrystals in solid *** practice,the radiative rate enhancement under strong continuous wave optical pumping is relevant for the possible application of silicon nanocrystals for spectral conversion layers in concentrator photovoltaics.

关键词： micro-photoluminescence nanocrystal optical spectroscopy silicon thermal

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EU- und EG-Vertrag : Kommentar zu dem Vertrag über die Europäische Union und zu dem Vertrag zur Gündung der Europäischen Gemeinschaften

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1000年

作者： Hrsg. Carl Otto Lenz und Klaus-Dieter Borchardt Autoren jan Bergmann ... [et al.].

来源：畅想之星图书光盘版（南... 评论

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A new quantum speed-meter interferometer: measuring speed to search for intermediate mass black holes

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Light(Science & Applications) 2018年第1期7卷 940-948页

作者： Stefan L.Danilishin Eugene Knyazev Nikita V.Voronchev Farid Ya.Khalili Christian Gräf Sebastian Steinlechner jan-Simon Hennig Stefan Hild Institut für Theoretische Physik Leibniz Universität Hannover and Max-Planck-Institut für Gravitationsphysik(Albert-Einstein-Institut)Callinstraße 38D-30167 HannoverGermany SUPA School of Physics and AstronomyUniversity of GlasgowGlasgow G128QQUnited Kingdom M.V.Lomonosov Moscow State University Faculty of PhysicsMoscow 119991Russia Institut für Laserphysik und Zentrum für Optische Quantentechnologien der Universität Hamburg Luruper Chaussee 14922761 HamburgGermany

The recent discovery of gravitational waves(GW)by Advanced LIGO(Laser Interferometric Gravitational-wave Observatory)has impressively launched the novel field of gravitational astronomy and allowed us to glimpse exciting objects about which we could previously only *** sensitivity improvements at the low-frequency end of the detection band of future GW observatories must rely on quantum non-demolition(QND)methods to suppress fundamental quantum fluctuations of the light fields used to readout the GW *** we present a novel concept of how to turn a conventional Michelson interferometer into a QND speed-meter interferometer with coherently suppressed quantum back-action *** use two orthogonal polarizations of light and an optical circulator to couple *** carry out a detailed analysis of how imperfections and optical loss influence the achievable *** find that the proposed configuration significantly enhances the low-frequency sensitivity and increases the observable event rate of binary black-hole coalescences in the range of 102103Mby a factor of up to~300.

关键词： quantum allowed coherent

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Reduced bile duct contractile function in rats with chronic hyperglycemia

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Health 2010年第9期2卷 1072-1077页

作者： Chi-Ming Liu Hui-Chen Su Yen-Ting Wang Tao-Hsin Tung Pesus Chou Yiing-Jeng Chou Jorn-Hon Liu jan-Kan Chen 不详

The incidence of gallstone is higher in patients with diabetes mellitus than in general popula- tion. It is generally attributed to hypomotility and lowered emptying function of the gallblad- der. In this study, we investigate if chronic hy- perglycemia is correlated with reduced contrac- tile function of the bile ducts in rat. Hypergly- cemic rats were induced by streptozotocin-nic-otinamide treatment. Hyperglycemic rats were sacrificed eight months after induction and bile ducts were removed for the subsequent studies. The bile duct contractility of the normal rats is consistently higher than that of the hypergly- cemic rats. The contractities were measured to be 5.5 ± 0.2 mg vs. 4.2 ± 0.1 mg without CCK stimulation, and 5.5 ± 0.3 mg vs. 7.9 ± 0.4 mg with CCK stimulation, respectively for hypergly-cemic and normal rats. There was no significant difference in plasma CCK concentration in hy- perglycemic rats and normal rats. The expres- sion of CCK-A receptor protein in the bile duct tissue was decreased in hyperglycemic rats compared with that of the normal rats, and it may, at least in part, responsible for a reduced contractility. A reduced bile duct motility may cause bile retention, and may be one of the factors predispose to gallstone formation in type 2 diabetes patients, which is characterized with chronic hyperglycemia.

关键词： Hyperglycemia Bile Duct Contractile

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Neuronal photoactivation through secondharmonic near-infrared absorption by gold nanoparticles

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Light(Science & Applications) 2018年第1期7卷 79-91页

作者： Wieteke D.A.M.de Boer jan J.Hirtz Antonio Capretti Tom Gregorkiewicz Mercè Izquierdo-Serra Shuting Han Christophe Dupre Yuriy Shymkiv Rafael Yuste NeuroTechnology Center Department of Biological SciencesColumbia UniversityNew YorkNY 10027USA van der Waals–Zeeman Institute University of Amsterdam1098 XH AmsterdamNetherlands Present address:Laboratori de Fisiologia Molecular Departament de Ciències Experimentals i de la SalutUniversitat Pompeu FabraBarcelonaSpain

Optical activation of neurons requires genetic manipulation or the use of chemical photoactivators with undesirable side *** a solution to these disadvantages,here,we demonstrate optically evoked neuronal activity in mouse cortical neurons in acute slices and in vivo by nonlinear excitation of gold *** addition,we use this approach to stimulate individual epitheliomuscular cells and evoke body contractions in Hydra *** achieve this,we use a low-power pulsed near-infrared excitation at the double-wavelength of the plasmon resonance of gold nanoparticles,which enables optical sectioning and allows for high spatial precision and large penetration *** effect is explained by second-harmonic Mie scattering,demonstrating light absorption by a second-order nonlinear process,which enables photothermal stimulation of the *** approach also minimizes photodamage,demonstrating a major advancement towards precise and harmless photoactivation for neuroscience and human therapeutics.

关键词： activation harmonic absorption

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老海勒鲁普高中体育馆

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城市环境设计 2019年第2期118卷 114-127页

作者： Ana Merino Anders Hjortn?s Christian Alvarez Dennis Rasmussen Gül Ertekin Henrick Poulsen Hjalti Gestsson jan Magasanik Jakob Lange Jacob Thomsen Jeppe Ecklon Ji-young Yoon Michael Sch?nemann Narisara Schr?der Riccardo Mariano Rune Hansen Snorre Nash Thomas Juul-Jensen Vincent He Xu Li Agnete Jukneviciute Ambra Chiesa Brigitta Gulyás Dennis Rasmussen Enea Michelesio Greta Krenciute H?gni Laksáfoss Isabella Eriksson jan Magasanik Mikkel Marcker Stubgaard Jeppe Ecklon Kamilla Heskje Michael Sch?nemann Narisara Schr?der Thomas Juul-Jensen Brigitta Gulyás Enea Michelesio Jakob Lange Mikkel Marcker Stubgaard Narisara Schr?der Tobias Hjortdal Iwan Baan Peter Moldow Rasmus Hjortshoj Jens Lindhe 朱翰林

位于哥本哈根北部的老海勒鲁普高中,内部拥有1100m2的多功能大厅和最新的两层建筑,为现有学生提供了广阔的社交和创意展示空间,同时提升学校的容量,以应对持续增长的人口需求。原本校园旁边的一栋建筑里,体育设施匮乏而无法满足需求;老... 详细信息

位于哥本哈根北部的老海勒鲁普高中,内部拥有1100m2的多功能大厅和最新的两层建筑,为现有学生提供了广阔的社交和创意展示空间,同时提升学校的容量,以应对持续增长的人口需求。原本校园旁边的一栋建筑里,体育设施匮乏而无法满足需求;老海勒鲁普高中也缺少大型多功能空间,用以举办体育活动、毕业典礼和社交聚会。为此,BIG为学生

关键词：体育馆

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Clinically detected gastroenteropancreatic neuroendocrine tumors are on the rise: Epidemiological changes in Germany

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World Journal of Gastroenterology 2013年第47期19卷 9012-9019页

作者： Hans Scherübl Brigitte Streller Roland Stabenow Hermann Herbst Michael Hopfner Christoph Schwertner Joachim Steinberg jan Eick Wanda Ring Krishna Tiwari Soren M Zappe Klinik für Gastroenterologie GI Onkologie und InfektiologieVivantes Klinikum Am Urban10967 BerlinGermany Gemeinsames Krebsregister der Lander Berlin BrandenburgMecklenburg-VorpommernSachsen-Anhalt und der Freistaaten Sachsen und Thüringen (GKR)10967 BerlinGermany Institut für Pathologie Vivantes Netzwerk für Gesundheit GmbH10967 BerlinGermany Institut für Physiologie Charité-Universitatsmedizin10117 BerlinGermany Charité-Universitatsmedizin Berlin HNO-KlinikCampus Virchow Klinikum13353 BerlinGermany

AIM:To study the epidemiologic changes of gastroenteropancreatic neuroendocrine tumors(GEP-NET)in Germany,we analyzed two time periods 1976-1988 ***:We evaluated epidemiological data of GEP-NET from the former East German National Cancer Registry(DDR Krebsregister,1976-1988)and its successor,the Joint Cancer Registry(GKR,1998-2006),which was founded after German *** to a particularly substantial database the epidemiological data from the federal states of Mecklenburg-Western Pomerania,Saxony,Brandenburg and Thuringia,covering a population of more than 10.8 million people,were *** probabilities were calculated using life table *** addition,GEP-NET patients were evaluated for one or more second(non-GEP-NET)primary ***:A total of 2821 GEP neuroendocrine neoplasms were identified in the two *** overall incidence increased significantly between 1976 and2006 from 0.31(per 100.000 inhabitants per year)to2.27 for men and from 0.57 to 2.38 for *** the later period studied(2004-2006),the small intestine was the most common ***(NE)neoplasms of the small intestine showed the largest absolute increase in incidence,while rectal NE neoplasms exhibited the greatest relative *** the incidence of appendiceal NET in women showed little change between 1976 and *** survival of patients varied for sex,tumor site and the two periods studied but improved significantly over ***,about 20%of the GEP-NET patients developed one or more second *** most common location was the gastrointestinal ***-NET patients without second malignancies fared better than those with one or more of ***:The number of detected GEP-NET increased about 5-fold in Germany between 1976 *** the same time,their anatomic distribution changed,and the survival of GEP-NET patients improved *** malignancies are common and influence the ov

关键词： Neuroendocrine Tumor Epidemiology Gastrinoma Insulinoma Endoscopy German history Reunification Second malignancy

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臭氧耗损的环境效应:1994年评估报告

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AMBIO-人类环境杂志 1995年第3期 138-138页

作者： jan C.van der Leun 唐孝炎 Manfred Tevini ibm.3090.rz.uni-karlsruhe.dbp.de 宁大同宴晓林 PhDCo-chair UNEP Effects PanelInst.dermatologyUniversity Hospital UtrechtHeidelberglaan UNEP效应小组 PhDCo-chair UNEP Effects PanelInst f.Botanik Ⅱ

关于臭氧层耗损物质的蒙特利尔协定在第六条中,要求在科学、环境、技术和经济方面对可以利用的信息进行定期评估。至少应每四年进行一次。实际上,在1989年、1991年和1994年都进行了评估,现在给出1994年评估。1994年环境效应评估的编写... 详细信息

关于臭氧层耗损物质的蒙特利尔协定在第六条中,要求在科学、环境、技术和经济方面对可以利用的信息进行定期评估。至少应每四年进行一次。实际上,在1989年、1991年和1994年都进行了评估,现在给出1994年评估。1994年环境效应评估的编写特点是在手边没有早期报告时也能阅读。蒙特利尔协定的条款及其在伦敦(1990)和哥本哈根(1992)的修正案已经使得导致臭氧耗损的化学品的生产和使用有了显著削减。然而,臭氧层仍在变薄,而且预计将一直延续到1998年。此后有望逐步恢复,但臭氧层的损害仍将延续半个世纪。这些预测是由

关键词：臭氧化学品回答臭氧层平流层

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