简介：Grapheneisaone-atom-thickplanarsheetofsp2-hybridizedorbitalbondedhoneycombcarboncrystal.Itsgaplessandlinearenergyspectraofelectronsandholesleadtotheuniquecarriertransportandopticalproperties,suchasgiantcarriermobilityandbroadbandflatopticalresponse.Asanovelmaterial,graphenehasbeenregardedtobeextremelysuitableandcompetentforthedevelopmentofterahertz(THz)opticaldevices.Inthispaper,thefundamentalelectronicandopticpropertiesofgraphenearedescribed.Basedontheenergybandstructureandlighttransmittancepropertiesofgraphene,manynovelgraphenebasedTHzdeviceshavebeenproposed,includingmodulator,generator,detector,andimagingdevice.Thisprogresshasbeenreviewed.FutureresearchdirectionsofthegraphenedevicesforTHzapplicationsarealsoproposed.

简介：Thebasicsandapplicationsofacousto-opticdevicesaredescribed,Theapplicationsincludeacousto-opticspectrumanalyzer,acousto-opticdeflector,acousto-opticprocessorsandacousto-opticdigitalmatrixcomputer.

简介：Studiesonterahertz(THz)radiationandfunctionadeviceshavedrawnincreasingattentionduetotheirapplicationsinbiologicalimagingandsensingnondestructiveevaluation,nationalsecurity,spectroscopyandhighspeedcommunication.TunableTHzsourcesbasedondifferencefrequencyorparametricoscillationgenerationarehighlyefficientandreliablefortheseapplications

简介：Theterahertzwaveisconsideredtohavegreatvaluesandplentifulapplications,suchasinmaterialscience,analysisofmolecularspectra,informationandcommunicationtechnology,biologyandmedicalscience,nondestructiveevaluation,andnationalsecurity.High-powerwidelytunableterahertzsourcesarerequiredintheabovepracticalapplicationsofterahertztechnologies.Apromisingapproachformonochromaticterahertzgenerationisbasedonsecond-ordernonlinearopticaleffect,

简介：Fromanordinarycondition,usingafullthree-dimensionalmodeltheoryandaninfiniteperturbationexpansionmethod,anexactsolutionofthere-flectioncoefficientforthecoatednarrowstripe-geometryopticalwaveguidedeviceshasbeenderived.Allsixcomponentsandthevectorpropertyoftheelectroma-gneticfieldhavebeenconsidered.Theresultsaresuitableforthesymmetricandasymmetricwaveguides.

简介：Multimode干扰(MMI)设备广泛地在平面lightwave电路(PLC)被使用。设备长度能很好与逐渐变细的multimode区域被减少。传统的设计公式基于弱限制的波导为MMI设备显示出大错误。作为波导宽度的替换与模式宽度基于分析，有更好的精确的一个设计公式被介绍。有软件模拟的比较验证了它的精确。CLC数字TN256

简介：Terahertz(THz)technologypromisesimportantapplicationsincludingimaging,spectroscopy,andcommunications.However,oneoflimitationsatpresentforadvancingTHzapplicationsisthelackofefficientdevicestomanipulateTHzwaves.Here,ourrecentimportantprogressesinTHzfunctionaldevicesbasedonartificialmicrostructures,suchasphotoniccrystal,metamaterial,andplasmonicstructures,havebeenreviewedinthispaper,involvingtheTHzmodulator,isolator,andsensor.TheseTHzmicrostructurefunctionaldevicesexhibitgreatpromisingpotentialinTHzapplicationsystems.

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简介：基于费用注射和再结合过程和thetriplet三位字节歼灭过程，计算电镀物品的一个模型光(EL)效率被介绍。注入系数，再结合效率和电镀物品上的应用电场的影响光效率被讨论。它被发现那：当再结合效率与应用电场正在减少增加时，注入系数正在增加的CD。(2)EL效率慢慢地在低电场被提高，但是随应用电压的增加在高电场正在减少。(3)EL效率随主人客人的增加正在减少分子的距离(R)。那么，这被结束在单个层的器官的电镀物品的ELefficiency发磷光的设备被注入系数在更高的电场在更低的电场和再结合效率统治。

简介：Chargedcentersexistinthephosphorlayerofthecommonthinfilmelectroluminescentdevices.Inthisarticle,electronscatteringprocessduetothesecentersisstudiedthroughphaseshiftanalysis.Thescatteringratesindifferentcasesareobtainedandcomparedwithotherimportantscatteringprocesses.ElectrontransportprocessedunderdifferentchargedcentrersconditionsaresimulatedbymeansofMonteCarlomethod.Thequantitativeresultsabouttheinfluenceofchargedcentersonelectronenergyareobtained.

简介：马达的配置被设计，动态分析方程基于它的简化模型被推出。利用栅栏的一个严峻的系统被设置测试这台新马达，和理论运动原则因为马达被实验证明。脉搏波形被使用驱使马达搬到步。马达有10nm和0.6mm/s的最大的速度的一个排水量决定。它能驾驶其范围是20公里的200g滑块。放站台的一个维的精确被使用新混合压电的马达制作。原型由二台伺服马达和二台压电的马达组成，它被一台计算机自动地控制。站台的放的范围是10厘米。

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简介：Asthetechnologyofmobiledevicesspreadsfast,thepriceofmobiledevicesisgettingcheaper.Mostofthepeoplehavemobiledevices,andthesedeviceshavethetechnologyofnearfieldcommunication(NFC).Withthelongtimedevelopmentandresearch,themobiledevicesuseNFCtechnologyonthepaymentandauthenticationapplications,andreplacethesmartcard,theaccesscontrolcard,andthecreditcardbyusingthecardemulationmode.IthelpsthedevelopmentofNFCapplications.Inrecentyears,moreandmoreusersbeginusingNFCtechnologyonmobilepaymentandauthentication.ManyresearcheshaveproposedtherelatedNFCauthenticationprotocols,buttheirschemesarestilllackofsomesecuritypropertiesandfunctions,whicharenecessaryforNFCauthenticationprotocols.Inthispaper,weproposeasecureandefficientNFCauthenticationschemebetweentwoNFCdevicesbythehelpoftheauthenticationserverthatprovidesmutualauthentication.

简介：Terahertz(THz)radiationhasbeenextensivelyinvestigatedinrecentyearsduetoitspotentialapplicationsincommunication,homelandsecurity,safetyinspection,sensing,andimaging.ForacommonTHzsystem,threepartsarequiteimportant:THzsources,THzdetectors,andTHzfunctionaldevices.Functionaldevicescaneffectivelyimprovethesignaltonoiseratioofasystem,increasethe

简介：在这份报纸，器官的量井设备，无机的半导体类似于type-II量很好，被制作了，在里面它NPB(N，N鈥?Di-[(1-naphthalenyl)-N,N鈥?diphenyl]-(1,1鈥?biphenyl)-4,4鈥?diamine)和Alq3(Tris-(8-quinolinolato)铝)分别地充当潜在的障碍层和潜在的井层。在electroluminescence，有井宽度减少的光谱的蓝移动与不同的井宽度为设备被观察，并且这被量尺寸效果和激子监禁效果的联合解释。有增加应用电压的光谱的蓝移动为一样的设备被观察，并且这以极化效果和量尺寸效果被解释。CLC数字TN383+.1这个工作被中国的国家性质科学基础支持(60576016，10374001)，中国(2003CB314707)的国家关键基本研究专辑基础，国家高技术研究和开发中国(2006AA0380412)编程序，北京城市自然科学基础(2073030)，中国(10434030)的国家性质科学基础的关键条款，和北京交通大学的优秀医生鈥檚科技革新基础

简介：一个分析模型被介绍推测在高度的分离概率和外部量效率在做的器官的电镀物品磷光(EPH)回答设备。费用再结合过程和三位字节(T)-triplet(T)歼灭过程在这个模型被考虑。应用电压的影响和分离概率上的设备，并且当前的密度的厚度和外部量效率上的设备的厚度被包括并且忽略激子的分离彻底地学习。激子的分离概率将在高电场接近1，这被发现，并且外部EPH量效率是几乎在低电场的一样。有在为包括或忽略激子的分离的高电场的外部EPH量效率的大差异。

简介：Theopticalnoninvasivediagnosticofcharacteristicofsiliconsemiconductorde-vicesbyusingaInGaAsP/InPsemiconductorlaserasanopticalprobeisreported.Theprinci-pleofexperimentalmethodisbasedonthedependenceoftheopticalrefractiveindexonthecarrierchargedensityintheactiveregionofdevicesanddetectionofvariationofrefractiveindexbytwolaserbeaminterferometrictechniques.

简介：Basedontheideaoftiltingaphotoelectricconversiondevice,themonocrystallinesiliconp-njunctiondevicewastiltedtomakelightincidentuponthedeviceatanangleof45°withthenormalofthedevicesurface,resultingininfraredmultiple-internal-reflectioninsidethedevice.Theinternalreflectionleadstopathlengthincreaseofinfraredlight,makingtheenhancementofinfraredabsorptionofthedevice.Anincreaseof11%inenergyconversionefficiencyhasbeenobtainedthroughtiltingthedevice.

简介：有有限阴极联系的欧姆的阳极接触和注射的一个双性人层模型被建议了计算再结合效率和设备的再结合区域宽度。洞传送层的厚度和联合效率和再结合宽度上的organic/organicinterface的障碍的效果被讨论了。它被发现那：(1)当电子充分被堵住，洞没在theorganic/organic接口显著地被堵住时，为给定的L_h/L，再结合效率与增加应用电压增加，但是在更高应用的电压，有增加L_h/L的再结合效率减少；(2)有增加的再结合效率增加使用了电压andH′_h，并且什么时候使用了电压和H′_h超过某价值，再结合效率作为一个高原出现；(3)有增加应用电压和L_h/L.This模型的再结合宽度减少可能向相对实验解释现象。

简介：这份报纸讨论由连接到在在微格子的系统有精力存储系统和力量电子学的角色的微格子的systems.The好处形式的本地负担的分布式的代组成的未来力量系统是纸也检验让一个关键角色怎么微格子在聪明的格子的发展玩的presented.This。