简介：Anewmethodisproposedtogeneratemicrowaveandmillimeter-wavebyusingpolarizationscramblerandpolarizationmaintainingfiber(PMF),whichisbasedonthecouplingandtheinteractionbetweenthetwopolarizationsoftheinitialnon-chirpGaussianopticalpulseinPMF.Theexpressionsofthemicrowaveandmillimeter-wavearederivedbycouple-modetheory.Moreover,thefeasibilityisanalyzedsimulatedly.Atlast,0-120GHzmicrowaveandmillimeter-wavecanbeproducedbyadjustingsystemparameterorinputpulseduration.Theprojectisofgreatsimplicity,stabilityandhighexportefficiency.

简介：Westudyanonlinearlosslesspolarizer(NLP),afiber-baseddeviceabletocontrolthepolarizationofanopticalsignalwhilepreservingitsenergy.TheNLPexploitsthelosslesspolarizationattraction(LPA)generatedbytheKerrinteractionsbetweenthesignalandafullypolarizedcontinuouswave(CW)pump.Byemployingacopropagatingpump,weshowthattheeffectivenessofLPAdependsonthejointactionoftheKerrnonlinearityandthemutualdelaybetweensignalandpump.WefindtheoptimalpumpwavelengthplacementanddemonstratethattrueLPAoccursonlywithinalimitedrangeofdelayvalues.Thus,weexplainwhythecopropagatingNLPismoreflexibleandpowerefficientcomparedwiththetraditionalcounterpropagatingNLP.

简介：Abroadbandreflectivepolarizationconverterisproposed.Theunitcellofpolarizationconverteriscomposedofasingle-splitresonantring,adouble-splitresonantring,adielectricsubstrateandametallicground.Thesimulatedresultsshowthatthepolarizationconvertercanconvertx-polarizedwavesintoy-polarizedwavesandobtainabroadbandpolarizationconversionfrom0.5010THzto1.3900THzwiththepolarizationconversionratio(PCR)beyond80%atnormalincidence.Moreover,thesurfacecurrentdistributionsareinvestigatedtoexplainthepolarizationconversionmechanism.Finally,agoodagreementisachievedbetweensimulatedandmeasuredresults.Thepolarizationconvertercanbeappliedinterahertzimaging,communicationandstealthytechnology.

简介：TransmissionofananisotropicmetasurfaceisanalyzedinapolarbaserelyingontheJonescalculus,andpolarizationconversionfromthespatialuniformpolarizationtothespatialnonuniformpolarizationisexplored.Simpleandcompactpolarizationconvertersbasedonrectangularholesorcrossholesetchedinsilverfilmaredesigned,andpolarizationconversionsfromthelinearandcircularpolarizationtotheradialandazimuthalpolarizationarerealized.Numericalsimulationsofthreedesignedpolarizationconvertersconsistingofrectangularholesequivalenttopolarizersandquarter-andhalf-waveplates,exhibittheperfectpolarizationconversion.Theexperimentresultsconsistentwiththesimulationsverifytheoreticpredictions.Thisstudyishelpfulfordesigningmetasurfacepolarizationconvertersandexpandingtheapplicationofametasurfaceinpolarizationmanipulations.

简介：全部的联合代替是为有停用关节炎和联合机能障碍的病人的治疗的一个高度成功的外科的过程。随着时间的过去，与活动的高水平和关节的用法，然而植入穿粒子从明白表示的表面被产生。这些穿粒子能在implant(periprostheticosteolysis)附近导致煽动性的反应，和随后的骨头再吞的激活。单核白血球/巨噬细胞系的房间安排这长期的煽动性的回答，它被支持inflammatory(M1)统治巨噬细胞显型而非一反煽动性的支持织物的愈合(M2)巨噬细胞显型。当它被显示出时，那interleukin-4(IL-4)有选择地极化向支持骨头愈合的M2反煽动性的显型的巨噬细胞，而非发炎，很少对这在通过IL-4的极化在哪个是很有效的在发生或调节的时间功课被知道。这个工作的目标是与polymethylmethacrylate(PMMA)的联合响应挑战学习鼠科的巨噬细胞极化和cytokine版本的时间功课粒子，lipopolysaccharide(LPS)和在vitro的IL-4。有IL-4的质问粒子的单核白血球/巨噬细胞的处理导致了支持inflammatorycytokines和可诱导的氮的氧化物synthase(iNOS)的起始的抑制生产和随后的极化进M2反煽动性的显型。当IL-4在PMMA粒子挑战前被交付时，这结果被优化，到M1显型而非到未遂(M0)巨噬细胞。这极化的效果在一堂5天的时间功课上被支撑。进M2显型的M1巨噬细胞的极化可以是策略减轻穿粒子联系periprostheticosteolysis。

简介：为综合的一个可行方法毫米波浪圆锥形的数组并且优化低跨极化是从远地的重叠原则的proposed.Starting，包括相互的联合和装的站台完成的元素的一条有效途径被用来计算远地的patterns.A坐标变换被使用创造极化数量，并且为元素的一个一般过程极化了模式转变是数字例子被给的performed.Corresponding和需要的sidelo

简介：Anewpolarizationgatingisdemonstratedbyourprinciple-of-proofexperiment,whichistheoreticallyproposedtogeneratetheisolatedordoubleattosecondpulseswiththemulti-cycledrivinglaserpulseinthepreviouswork[OpticsExpress.20,5196(2012)].Intheexperiment,thepolarizationgatingisformedbytwoorthogonally-polarizedlinearlychirpedmulti-cyclelaserpulses,andthespectralbandwidthsoftheharmonicsarebroadenedbymorethantwotimes,whichagreewiththeprevioustheoreticalwork.

简介：Whenexposedtointenseelectromagneticfields,thequantumvacuumisexpectedtoexhibitpropertiesofapolarizablemediumakintoaweaklynonlineardielectricmaterial.Variousschemeshavebeenproposedtomeasuresuchvacuumpolarizationeffectsusingacombinationofhigh-powerlasers.Motivatedbyseveralplannedexperiments,weprovideanoverviewofexperimentalsignaturesthathavebeensuggestedtoconfirmthispredictionofquantumelectrodynamicsofrealphoton–photonscattering.

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简介：Theestimationofclutterpolarizationissignificantinvirtualpolarizationfiltering.ThispaperproposesvariablestepsizeLeastMeanSquareerror(LMS)algorithmtoestimateclutterpo-larization.Theadaptiverecursivefunctionissetupbasedondoublepolarizationreceivingsignalmodel.Bychoosingdesiredresponsesignalproperly,thereceiveddataareestimated.TheresultofestimationisusedforNullPhase-ShiftinstantaneousPolarizationFilter(NPSPF)designandtarget’samplitudeandphasecompensation.Algorithm’strackingperformanceisdiscussedindetail.Thesimulationresultsareconsistentwiththeaboveanalysis,andthecluttersuppressioniseffective.

简介：Adopting'simultaneoustransmitting,simultaneousreceiving'operationalscheme,instantaneouspolarizationradar(IPR)canmeasuretargetpolarizationscatteringmatrix(PSM)usingonlyoncetargetechoesintwoorthogonalpolarizationchannels.Firstly,signalmodelandsignalprocessareadvancedundernarrowbandcondition.Secondly,measurementperformancesoftwotypicalIPRwaveformsareanalyzedindetail.Atlast,fieldexperimentsarecarriedoutusingX-bandIPRsystemdesignedbyNationalUniversityofDefenseTechnology(NUDT),China.Comparedwithresultsobtainedbyalternativepolarizationmeasurementscheme,followingresultscanbeobtained:thedifferenceofrelativeamplitudemeasurementresultsissmallerthan2dBandthatofrelativephasemeasurementresultsissmallerthan10?,verifyingthevalidityofinstantaneouspolarizationmeasurementscheme.

简介：Inthispaper,weproposeandexperimentallydemonstrateamethodtorealizeapolarizationdetectorbyusingacommerciallyavailablepolymethylmethacrylate(PMMA)pipe.Anasymmetricpolarization-relatedstructureisfabricatedbyetchingdifferentgratingstructuresontheexternalsurfaceofthepipe.Theresultsshowthatwhenthepiperotatesupto90°,thepeakofthetransmissionspectrumcanevidentlyshifttowardsthelowfrequency,whichmeansthepipewithgratingstructurescanserveasapolarizationdetector.Thisdesignpossessesthemeritsofasimplestructureandeasyfabrication.

简介：一个计划被开发计算在电子影响刺激以后射出的放射的极化。充分相对论的弄歪波浪的方法是使用的品种内异系交配体节计算。计划被用于象他一样和象Li一样离子。线极化的计算价值与另外的理论结果和试验性的价值相比。象ForHe一样U在更低的事件精力，，现在的极化在更高的精力在1%以内同意另外的理论的，差别增加直到大约10%。为象他一样Fe和Ti，为大多数线的极化度的现在的结果在试验性的错误酒吧以内同意试验性的数据。为象Li一样Ti线q(1s2s2p(2)P(3/2)到1s(2)2s)，极化的现在的值与另一理论一个，和两个最优地同意值与在试验性的错误工具条以内的测量数据一致。

简介：Polarizationoscillatingbeams,namely,polarizationstandingwaves,commonlyformedbyapaircounterpropagatinglightwaveswithwithinawavelengthinterval,offeringorthogonalpolarizations,oscillatetheirstatesofpolarizationconceptualandpracticalinterestsinlight-matterinteractionsofcoherentperiodicallysuchasthenonreciprocalmagnetoelectriceffect,andimpressiveapplicationsinopticalimaging,sensing,andchiralityde-tection.Here,weproposeanewclassofpolarizationoscillatingbeamsthatlongitudinallyvarystatesofpolari-zationwithspatialintervalswithincentimetersviathesuperpositionoftwocopropagatingopticalfrozenwaveswithpreshapedlongitudinalintensityprofilesandtransversephasestructures.Theflexibilityandmanipulabilityaredemonstratedbycreatingseveralpolarizationoscillatingbeamswithdifferentpolarizationstructures.Thisworkpavesanewwaytomanipulateotherwavesandmaybeusefulforapplicationsofopticalstandingwavesinopticalmanipulation,lightguidingofatoms,polarization-sensitivesensing,etc.

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简介：Thepolarizationevolutionofvectorbeams(VBs)generatedbyq-platesisinvestigatedtheoreticallyandexperimentally.AnanalyticalmodelisdevelopedfortheVBcreatedbyageneralquarter-waveq-platebasedonvectordiffractiontheory.ItisfoundthatthepolarizationdistributionofVBsvarieswithpositionandthevalueq.Inparticular,fortheincidenceofcircularpolarization,theexitvectorvortexbeamhaspolarizationstatesthatcoverthewholesurfaceofthePoincarésphere,therebyconstitutingafullPoincarébeam.Fortheincidenceoflinearpolarization,theVBisnotcylindricalbutspecularlysymmetric,andexhibitsanazimuthalspinsplitting.Theseresultsareinsharpcontrastwiththosederivedbythecommonlyusedmodel,i.e.,regardingtheincidentlightasaplanewave.Byimplementingq-plateswithdielectricmetasurfaces,furtherexperimentsvalidatethetheoreticalresults.

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简介：Itiswell-knownthatidiopathicthrombocytopenicpurpura(ITP)isanacquiredorgan-specificautoimmunehemorrhagicdiseaseanddysfunctionalcellularimmunityisconsideredimportantinthepathophysiologyofITP.However,polarizationpatternsandapoptosisprofilesofTlymphocytesremainunclear.Inthisstudy,weinvestigatedthepolarizationofTcellsubsets,theexpressionsofapoptoticproteinsFas/FasLonthesubsetsandthelevelofanti-apoptoticgenebcl-2andbaxmRNA.ItwasdemonstratedthattheratiosofTh1/Th2andTc1/Tc2inITPchildrenwereincreasedobviouslyandthattheaveragepercentageswereincreasedclearlyforTh1andTh2,butnotforTc1andTc2.InITPchildren,theenhancingexpressionsweredetectedforFasLonTh1andTc1andforFasonTh2andTc2.Withincreasinglevelofbcl-2mRNAanddecreasingexpressionofbaxmRNAinITPchildren,theratioofbcl-2/baxmRNAwasimprovedobviously,whichwaspositivecorrelatedwiththeratioofTh1/Th2.Takentogether,ourfindingsindicatethatITPisaTh1predominantdisease.ThispolarizationpatternofTcellsubsetsmightberelatedtothehighratioofbcl-2/baxmRNAandtheabnormalexpressionsofFasandFasLonTcellsubsets.Cellular&MolecularImmunology.

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简介：Amultichannelpolarization-entangledphoton-pairsourceinanMgO-dopedperiodicallypoledlithiumniobate(MgO:PPLN)waveguideisproposed.BasedontypeIquasi-phase-matchedspontaneousparametricdownconversioninasingleMgO:PPLNwaveguideplacedinsideaSagnacinterferometerandpumpedbymonochromaticlight,asourcecapableofsupportingtenstohundredsofchannelsofpolarization-entangledphotonpairsinfibercommunicationbandssimultaneouslycanbeachieved.Aninherentchannelswitchofthissourceisinvestigated,whichwillbesignificantforfutureentanglementdistributionnetworks.