简介：Weproposethatnanomaterialsareusedforfibers.Anovelnano-InPdopedfiberhasbeenfabricatedbythemethodofmodifiedchemicalvapordeposition(MCVD).Ithasbeenmeasuredthatthedopingconcentrationofphosphoruselementis0.1%.TherelationshipbetweenrefractiveindexandthewavelengthisobtainedbyfittingexperimentaldatatoSellmeierequation.Dispersionofthefiberhasbeencalculatedinthewavelengthrangeof1.2-1.6μm.Asthewavelengthvariesfrom1.20μmto1.60μm,dispersionparamete...

简介：南极几月份最冷？张靓颖是谁？最近热播的央视版《京华烟云》的导演是谁？百度地图是什么时候推出的？……如此大量错综复杂的问题，谁能在10分钟内最快找出正确答案，谁将成为名副其实的搜霸霸主。

简介：Inrecentyears,thepotentialofrenewablegreenenergysourceshasbeenextensivelystudied.Theproventechnologywhichisphotovoltaicsolarcellsstrictlydependsondaylightandproduceslow-efficiently.Toovercometherestrictions,onetechnologystudiedisthroughharvestingthethermalradiationenergywhichcanprovidea24-hourenergysource.Thecontinuityofenergysourcespromisesverygoodenergyconversionespeciallyformilitaryapplications.Thisarticlepresentsanewstructurethatcanharvesttheabundantthermalradiationenergyintousableenergyatthewavelengthof10μm.Arectangularstructurewithaperturbationslitwasdesignedtointegratewitharectifiercircuitforgreenenergyconversion.Theslittunneljunctionguidedtheelectromagneticfieldintoajunctionwheretheenergycouldbecollectedandconverted.Anenhancementfactorofapproximately110.6canbeachievedbyaperturbationslitlengthof1.0μm.Theresultsextractedfromtheproposeddesignpromiseabettercandidatetoovercomethedisadvantagesofphotovoltaicsolarcellsforenergyharvestingdevices.

简介：在5月之前，恐怕谁都不会想到威盛Nano“凌珑”处理器会在商用服务器领域成为关注的热点。日前戴尔所发布的超轻型服务器产品XS11－VX8没有老生常谈般地使用英特尔或者AMD的处理器，而是采用了威盛的Nano“凌珑”处理器，而这也是Nano首次在服务器产品上的应用。

简介：Opticalmicroscopeisoneofthemostpopularcharacterizationtechniquesforgeneralpurposesinmanyfields.Itisdistinguishedfromthevacuumortip-basedimagingtechniquesforitsflexibility,lowcost,andfastspeed.However,itsresolutionlimitsthefunctionalityofcurrentopticalimagingperformance.Whilemicrosphereshavebeendemonstratedforimprovingtheobservationpowerofopticalmicroscope,theyaredirectlydepositedonthesamplesurfaceandthustheapplicationsaregreatlylimited.Wedeveloparemote-modemicrospherenano-imagingplatformwhichcanscanfreelyandinreal-timeacrossthesamplesurfaces.Itgreatlyincreasestheobservationpowerandsuccessfullycharacterizesvariouspracticalsampleswiththesmallestfeaturesizedownto23nm.Thismethodoffersmanyuniqueadvantages,suchasenablingthedetectiontobenon-invasive,dynamic,real-time,andlabel-free,aswellasleadingtomorefunctionalitiesinambientairandliquidenvironments,whichextendsthenano-scaleobservationpowertoabroadscopeinourlife.

简介：Remote-modemicrospherenanoscopecanobservethenano-structureswith23nmfeaturesize.Itdoesnotrequiresamplepreparationandfunctionsinbothambientairandliquidenvironments.ComparedwiththescientificcharacterizationtoolslistedinTableS1,thesimpleandportablenaturemakesthemicrospherenanoscopeafavorablesolutionforgeneralpurposeimaginginpracticalfields,likehospitals,foodindustry,semiconductorproductionlines,schoolsandenvironmentagencies.

简介：Cadmiumzincleadsulfide[Cd0.8(Zn1-x,Pbx)0.2S]nano-powderswerepreparedbyanimprovedcoprecipitationmethod.TheeffectofPb2+concentrationat500ConthephaseandcrystallinestructureoftheCd0.8(Zn1-x,Pbx)0.2SpowderswereinvestigatedbyX-raydiffraction(XRD).Accordingtothetransmissionelectronmicroscopy(TEM)images,theparticlessizeareintherangeof58nmto72nm.Inaddition,opticalbandgapenergyandopticalconstantsofnano-powdersweredeterminedusingtheultraviolet(UV)spectrum,Fourniertransforminfraredspectroscopy(FTIR),andKramers-Kroniganalysis,respectively.Wecalculatetherefractiveindexn,extinctioncoefficientk,anddielectricfunctionεasafunctionofthewavenumber.TheexperimentresultsdemonstratethattheamountofPb+2hasbeenplayinganincreasinglyimportantroleonopticalpropertiesofCZPSnanocrystals.

简介：Asimplemethodtofabricateone-dimensional(1-D)andtwo-dimensional(2-D)orderedmicro-andnano-scalepatternsisdevelopedbasedontheoriginalmastersfromopticaldiscs,usingnanoimprinttechnologyandsoftstamps.Polydimethylsiloxane(PDMS)wasusedtoreplicatethenegativeimageofthe1-DgratingpatternonthemastersofCD-R,DVD-RandBD-Ropticaldiscs,respectively,andthenthe1-DpatternononeofthePDMSstampswastransferredtoablankpolycarbonate(PC)substratebynanoimprint.The2-DorderedpatternswerefabricatedbythesecondimprintingusinganotherPDMSstamp.Different2-DperiodicpatternswereobtaineddependingonthePDMSstampsandtheanglebetweenthetwotimesofimprints.Thismethodmayprovideawayforthefabricationofcomplex2-Dpatternsusingsimple1-Dmasters.

简介：Thepropagationoffemtosecondlaserpulseswithwavelengthsof1550nm,1064nm,800nmand700nm,respectively,whichareinthenormaldispersionregionofthenano-structuredphotoniccrystalfiber(N-PCF)withinterestingbroadbandnormaldispersionandhighlynonlinearproperties,isstudied.Fortheeffectofchirpvariationmainlyinducedbygroupvelocitydispersion(GVD)andself-phasemodulation(SPM),afterpropagationoverashortlength,thewavebreakingoccurs.Namely,oscillatorystructuresarepresentednearpulseedgesandsidelobesappearinthepulsespectrum.Inthecaseof800nm,afterthepropagationof20mm,asuperflatspectrumisobtained.Thebandwidthofthesuperflatspectrumisassociatedwiththedispersionlengthandthenonlinearlength.BychoosingN-PCFandlaserpulsewithappropriateparameters,abroadbandsuperflatspectruminashortlengthcanbeachieved.

简介：(CMP)软层的概念第一次在化学机械擦亮期间被建议。软层是在它是的硅表面上形成的反应层比硅衬底和它的厚度软是大约几纳米。软层的Theexistence能增加一个粒子移开的材料体积并且在CMP期间增加材料移动率。同时，软层能减少磨料粒子的切的深度以便认识到可锻的磨擦，并且减少是有用的擦亮的表面并且到的粗糙改进擦亮的质量。

简介：用向量衍射理论和现象学的模型，这份报纸调查集中的油炸圈饼横梁(DB)与不同拓扑的费用激动的单个中心对称的nanosphere的第二泛音代(SHG)。当粒子旁边是激动的时，强壮的向后的SHG(BSHG)出现的结果表演与拓扑的费用集中了DB????????????????￡吗？

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