简介：Wepresentacontinuous-wavesingly-resonantopticalparametricoscillatorwith1.5%outputcouplingoftheresonantsignalwave,basedonanangle-polishedMgO-dopedperiodicallypoledlithiumniobate(MgO:PPLN),pumpedbyacommercialNd:YVO4laserat1064nm.Theoutput-coupledopticalparametricoscillatordeliversamaximumtotaloutputpowerof4.19Wwith42.8%extractionefficiency,acrossatuningrangeof1717nminthenear-andmid-infraredregion.Thisindicatesimprovementsof1.87Winoutputpower,19.1%inextractionefficiencyand213nmintuningrangeextensionincomparisonwiththeopticalparametricoscillatorwithnooutputcoupling,whileattheexpenseofincreasingtheoscillationthresholdbyafactorof～2.Moreover,itisconfirmedthatthefiniteoutputcouplingalsocontributestothereductionofthethermaleffectsincrystal.

简介：Inthescenariowherethedarkmatter(DM)particlesχχˉpairannihilatethrougharesonanceparticleR,theconstraintfromDMrelicdensitymakesthecorrespondingcrosssectionforDM-nucleielasticscatteringextremelysmall,andcanbebelowtheneutrinobackgroundinducedbythecoherentneutrino-nucleiscattering,whichmakestheDMparticlebeyondthereachoftheconventionalDMdirectdetectionexperiments.WepresentanimprovedanalyticalcalculationoftheDMrelicdensityinthecaseofresonantDMannihilationfors-andp-wavecasesandinvesitgatetheconditionfortheDM-nucleiscatteringcrosssectiontobeabovetheneutrinobackground.WeshowthatinHiggs-portaltypemodels,forDMparticleswiths-waveannihilation,thespin-independentDM-nucleusscatteringcrosssectionisproportionaltoΓR/mR,theratioofthedecaywidthandthemassofR.ForatypicalDMparticlemass～50GeV,theconditionleadstoΓR/mR≥O(10-4).Inp-waveannihilationcase,thespin-independentscatteringcrosssectionisinsensitivetoΓR/mR,andisalwaysabovetheneutrinobackground,aslongastheDMparticleislighterthanthetopquark.TherealsingletDMmodelisdiscussedasaconcreteexample.

简介：Inthispaper,anewtypeofresonantBrewsterfilters(RBF)withsurfacereliefstructureforthemultiplechannelsisfirstpresentedbyusingtherigorouscoupled-waveanalysisandtheS-matrixmethod.Bytuningthedepthofhomogeneouslayerwhichisunderthesurfacereliefstructure,themultiplechannelsphenomenonisobtained.Longrange,extremelylowsidebandsandmultiplechannelsarefoundwhentheRBFwithsurfacereliefstructureisilluminatedwithTransverseMagneticincidentpolarizationlightneartheBrewsteranglecalculatedwiththeeffectivemediatheoryofsubwavelengthgrating.Moreover,thewavelengthsofRBFwithsurfacereliefstructurecanbeeasilyshiftedbychangingthedepthofhomogeneouslayerwhileitsopticalpropertiessuchaslowsidebandreflectionandnarrowbandarenotspoiledwhenthedepthischanged.Furthermore,thevariationofthegratingthicknessdoesnoteffectivelychangetheresonantwavelengthofRBF,buthavearemarkableeffectonitslinewidth,whichisveryusefulfordesigningsuchfilterswithdifferentlinewidthsatdesiredwavelength.

简介：在电子上控告的喷气的非线性的不稳定性用描述一口液体喷气拉长并且变瘦的管理电镀物品水动力学方程被学习。到空间和时间演变骚乱的一个喷气流动系统题目被考虑。在线性阶段，瑞利和进行的喷气流动不稳定性模式被揭开。在流动的非线性的不稳定性经由三个一组被探索揭开的反响的波浪fa-vorable操作模式不以前在这个问题的线性学习检测了。特别地，喷气半径显著地被减少，并且喷气的电场在非线性的学习下面是适当地面向的。考虑回声三个一组模式提供对由于正切的电场效果拉长并且变瘦的一口喷气的更好数学的描述，这被发现。在喷气流动系统的线性、非线性的不稳定性结果被介绍并且讨论。

简介：在这个字母，对THz设备适用的一种二维的photonic水晶结构被设计，并且怎么在这结构形成microcavity被讨论。反响的洞的主要性质被分析，在哪个飞机波浪扩大方法被用来做计算和模拟。我们鈥檝e由改变参数在THz区域学习了bandgap结构和反响的频率的变化例如格子常数，绝缘的经常的对比和充满的因素。研究结果为生产THz设备和THz系统的申请提供了理论支持。

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简介：Onthebasisofopticallypoweredsensorprinciples,thispaperintroducesapracticalschemeofanopticallypoweredforcesensorusingapiezoelectriccrystalwork-inginclose-loopresonantmode.A3mWLDstabilixedisusedasopticalsource.Theop-ticalpoweringdistancereaches500mwhilethetotalpowerconsumptionofthemirco-powermeasuringheadisonly0.275mW.Thekeytechnicalproblemsofthesensorsarepresentedaswellasexperimentralresults.

简介：Weexperimentallydemonstrateself-trappingoflight,asaresultofplasmonicresonantopticalnonlinearity,inbothaqueousandorganic(toluene)suspensionsofgoldnanorods.Thethresholdpowerforsolitonformationisgreatlyreducedintolueneasopposedtoaqueoussuspensions.Itiswellknownthattheopticalgradientforcesareoptimizedatoff-resonancewavelengthsatwhichsuspendedparticlestypicallyexhibitastrongpositive(ornegative)polarizability.However,surprisingly,aswetunethewavelengthoftheopticalbeamfromacontinuous-wave(CW)laser,wefindthatthethresholdpowerisreducedbymorethanthreefoldattheplasmonicresonancefrequency.Byanalyzingtheopticalforcesandtorqueactingonthenanorods,weshowtheoreticallythatitispossibletoalignthenanorodsinsideasolitonwaveguidechannelintoorthogonalorientationsbyusingmerelytwodifferentlaserwavelengths.Weperformaseriesofexperimentstoexaminethetransmissionofthesoliton-formingbeamitself,aswellasthepolarizationtransmissionspectrumofalow-powerprobebeamguidedalongthesolitonchannel.Itisfoundthattheexpectedsyntheticanisotropicpropertiesaretoosubtletobeclearlyobserved,inlargepartduetoBrownianmotionofthesolventmoleculesandalimitedorderingregionwheretheopticalfieldfromtheself-trappedbeamisstrongenoughtoovercomethermodynamicfluctuations.Theabilitytoachievetunablenonlinearityandnanorodorientationsincolloidalnanosuspensionswithlow-powerCWlaserbeamsmayleadtointerestingapplicationsinall-opticalswitchingandtransparentdisplaytechnologies.

简介：

简介：Basedonthetheoryofcouplingvibrationandflexuralvibrationofthinrodofrectangularcrosssection,thefiexuralvibrationofrectangularthinplatewasstudied.Thefrequencyequationwasderivedundertheconditionoffreeboundaries.Thenormalmodesandtherelationbetweenthenormalmodesandtheresonantfrequencywereobtained.Experimentsshowedthatthecalculatedresonantfrequenciesagreewellwiththemeasuredresults,andtherectangularthinplateinflexuralvibrationhasabundantresonantfrequencies.Theradiatorofflexuralvibrationusedinultrasoniccleaningandothertechniqueshastheadvantagesoflargeacousticradiatingarea,uniformacousticfieldandeasyadjustmentofresonantfrequencies,provingthatitisapromisingultrasonicsource.

简介：

简介：AninhomogeneousKdVequationincludingtopographicforcingisderivedbyusingperturbationexpansionsandstretchingtransformsoftimeandspace.ThegenerationofforcedsolitaryRossbywavesbytopographyinanear-resonantflowandtheirinteractionswithfreesolitarywavesarediscussed,andsomeinterestingresultsareobtained.Thenumericalresultsshowthatthetopographyhasobviouseffectonenhancingtheamplitudeofdisturbances,anditmayexplaintosomedegreetheformationofblockingbylocalizedtopography.

简介：Inthispaper,amultidimensionaltuningmethodofthesilicamicrocapillaryresonator(MCR)isproposedanddemonstratedwherebytheextinctionratio(ER)aswellastheresonantwavelengthcanbeindividuallycontrolled.AnERtuningrangeofupto17dBandamaximumtuningsensitivityof0.3dB/μmarerealizedduetothetaperedprofileofthesilicaopticalmicrofiber(MF)whentheMFisadjustedalongitsaxialdirection.Comparedtodirecttuningofthecouplinggap,thismethodcouldlowertherequirementfortheresolutionofdisplacementstagetomicrometers.WhentheMFisadjustedalongtheaxialdirectionofthesilicamicrocapillary,aresonanceshiftof3.06nmandmaximumtuningsensitivityof0.01nm/μmareachieved.Thismethodavoidstheuseofanappliedexternalfieldtocontrolthesilicamicroresonators.Moreover,whenairisreplacedbyethanolandwaterinthecoreofthesilicamicrocapillary,amaximumresonanceshiftof5.22nmisalsoachievedtofurtherenlargetheresonancetuningrange.Finally,amicrobubbleresonatorwithahigherQfactorisalsofabricatedtoachieveanERtuningrangeof8.5dB.OurmethodfullytakesadvantageoftheuniquestructureoftheMCRtoseparatelyandeasilytuneitskeyparameters,andmaybroadenitsapplicationsinopticalsignalprocessingandsensing.

简介：Themonitoredresonantbehavioroffatiguespecimensofmetastableausteniticstainlesssteel(AISI304)iscorrelatedwithitsdamageaccumulationintheveryhighcyclefatigue(VHCF)regime.Theresonantbehaviorisstudiedexperimentallyandshowsadistincttransientcharacteristic.MicroscopicexaminationsindicatethatduringVHCFalocalizedplasticdeformationinshearbandsarisesonthespecimensurface.Hence,thisworkfocusesontheeffectofdamageaccumulationinshearbandsontheresonantbehaviorofAISI304intheVHCFregime.Amicrostructuralsimulationmodelisproposedthattakesintoaccountspecificmechanismsinshearbandsprovenbyexperimentalresults.Thesimulationmodelissolvednumericallyusingthetwo-dimensionalboundaryelementmethodandtheresonantbehaviorischaracterizedbyevaluatingtheforce-displacementhysteresisloop.Simulationofshearbandsagreeswellwithmicroscopicexaminationsandplasticdeformationinshearbandsinfluencesthetransientcharacteristicoftheresonantbehavior.

简介：一个计划被建议因为二原子的格言联盟者的产生纠缠了状态，多原子格言联盟者纠缠了W班的状态。计划与一个单个模式的洞基于原子的同时的反响的相互作用删除。它不要求相互作用时间的精确调整。需要完成产生的时间不与原子的数字增加。

简介：我们在和一个单个模式的反响的洞题目的超导的费用qubit的相互作用的一个系统学习熵关联和纠纷的动力学到认为随机的阶段电报噪音同样二状态的噪音。我们证明尽管噪音在系统在纠纷上在qubit和这个领域并且也的熵的进化上有明显的压制效果，在qubit和这个领域之间的熵交换在系统的时间进化期间独立于它。

简介：AsimplemethodispresentedforgeneratingmulticomponentSchroedingercatstatesthroughresonantatomfieldinteractions.Intheschementwo-levelatoms,initiallyingroundstates,aresentthrougharesonantcavityfilledwithastrongcoherentfieldsequentially.Thenstate-selectivemeasurementsareperformedontheatoms.Thedetectionsoftheatomsingroundstatescollapsethecavityfieldontoasuperpositionof2^ncoherentstates.Thisisthefirstwayforproducingsuperpositionsofmanycoherentstatesthroughresonantatom-fieldinteraction.

简介：Applicabilityofguidedmoderesonantstructurestotunableopticalfilteringandsensingisdemonstratedusingnematicliquidcrystals.Asasensor,aminimumrefractiveindexdetectivityof10-5isdemonstratedwhileasatunablefilter,tunabilityrangeoffewtensofnanometerswith2-nmbandwidthispresented.Theoptimumdesignisachievedbymaximizingtheevanescentfieldregionintheanalytewhichmaximizestheoverlapintegral.Thedevicecanbeoperatedinreflectionortransmissionmodesatnormalincidence.Itcanalsobeoperatedatasinglewavelengthbymeasuringtheangularprofileofthelightbeam.

简介：Full-bridgeZero-Voltage-SwitchPWMconvertercombinesadvantagesofthePWMcontroltechniqueandresonanttechnique.However,FullZVSisachievedonlyunderlargeloadcurrentbecauseresonanttankofthiscircuitismadeupoftheparasiticcapacitanceofthepowersemiconductorsandtheleakageinductorofthetransformerprimary.Inthispapertwosaturableinductorsasmagneticswitchesareaddedtosecondary,sooutputinductorisalwaysreflectedtoprimaryandassistsresonanttransition.FullZVSisachievedunderlowerloadcurrent.Theabove-mentionedinvestigatedresultsarevalidatedbythecomputerizedsimulationandhardwarecircuitexperiment.

简介：Thebasicequationsoffreecapillary-gravitysurface-wavesinacircularcylindricalbasinwerederivedfromLuke'sprinciple.TakingGalerkin'sexpansionofthevelocitypotentialandthefreesurfaceelevation,thesecond-orderperturbationequationswerederivedbyuseofexpansionofmultiplescale.Thenonlinearinteractionswiththesecondorderinternalresonanceofthreefreesurface-waveswerediscussedbasedontheabove.Theresultsinclude:derivationofthecoupleequationsofresonantinteractionsamongthreewavesandtheconservationlaws;analysisofthepositionsofequilibriumpointsinphaseplane;studyoftheresonantparametersandthenon-resonantparametersrespectivelyinallkindsofcircumstances;derivationofthestationarysolutionsofthesecond-orderinteractionequationscorrespondingtodifferentparametersandanalysisofthestabilitypropertyofthesolutions;discussionoftheeffectivesolutionsonlyinthelimitedtimerange.Theanalysismakesitclearthattheenergytransformationmodeamongthreewavesdiffersbecauseofthedifferentinitialconditionsundernontrivialcircumstance.Theenergymayeitherexchangeamongthreewavesperiodicallyordamporincreaseinsinglewaves.