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80 个结果
  • 简介:Multielectrodesemiconductorlasersarestudiedviatheraymethod.TheexpressionoftheoutputphotonnumberofN-electrodesemiconductorlasershasbeenderivedforthefirsttime.WhenN=1or2,theexpressionoftheoutputphotonnumberfitsinthatofone-electrode(general)ortwo-electrodesemiconductorlasersperfectly.

  • 标签: 多电极半导体激光器 输出光子量 射线法
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  • 简介:EmeiSemiconductorMaterialFactoryincludingEmeiResearchInstituteofSemiconductorMaterialisanimportantcomplexunitcombiningfactorywithinsti-tutespecializedinproduction,trial-produc-tionandscientificresearchofsemiconductormaterialsinChina.Itisnotonlyakeyen-terpriseinChinaNationalNonferrousMet-alsIndustryCorporation,butalsoanim-

  • 标签: specialized FACTORY SENIOR institute WELCOME hundreds
  • 简介:Anoveltheoreticalmodelofthermaldiffusionhasbeenestablishedtostudythermalinteractionbetweentwoneighboringdiodsinsemiconductorlaserarrays.Themaincauseoftheocurrenceofthethermalinteractionbetweentwoneighboringdiodesinarraydevicesistheheatconductionthroughheatsink.Weholdthatasthedevicesmusyhaveheatsinktodiffuseheat,thiskindofinteractioninthearraywouldalwaysexist.However,whenthepitchbetweentwoneighboringdiodesinthearrayisreasonablydefined,thistroublesomethermalinteractioncanbesimplyreducedbyusingourmodel.Basedontheindividualdiodeswithleakywaveguidestructure,weexperimentallysucceededinfabricating2D4×4arrays.Thethermalinteractionbetweenupperandlowerdiodesinthe2Darrayisalsoconsideredaswellasthefunctionoftheheatsink.Themeasuredresultsshowthatthepulsepeakoutputpowerofthe2D4×4arrayishighupto11W.

  • 标签: 热交互作用 热扩散 二维列车 开槽波导 半导体激光器
  • 简介:Thispaperreviewsthestudiesonacoustoelectriceffectinextrinsicsemiconductormaterialsusedinvariousscientificandothermeasurements.Ahistoricalreviewofearlierfindingsisgivenwithspecialreferencetoassociatedmechanisms.Acoustoelectricstudiesinsolidstatedevioesrequirefurtherattentionandtheworkdoneinthisareaisalsodiscussed.

  • 标签: HISTORICAL EARLIER extreme EXTRINSIC MOMENTUM RELAXATION
  • 简介:Themathematicalmodelofsemiconductordevicesisdescribedbytheinitialboundaryvalueproblemofasystemofthreenonlinearpartialdifferentialequations.Oneequationinellipticformisfortheelectrostaticpotential;twoequationsofconvection-dominateddiffusiontypearefortheelectronandholeconcentrations.Finitevolumeelementprocedureareputforwardfortheelectrostaticpotential,whileupwindvolumeelementschemesforthetwoconcentrationequations.ErrorestimatesinL2normforournumericalschemesarederived.

  • 标签: 迎风有限体积概型 初值问题 非线性偏微分方程 数学模型 半导体
  • 简介:Usingtheraytracemethod,three-sectionsemiconductorlasersarestudied.Ananalyticexpressionofoutputpowerforthethree-sectionsemiconductorlasersisderivedforthefirsttime.Fromethisexpression,thresholdconditionisalsoobtained.

  • 标签: 光输出功率 射线法 半导体激光器
  • 简介:MeasurementofMoistureInsidetheHermeticPackageofSemiconductorDevice①XIEXuqiang(YanshanUniversity,Qinhuangdao066004,CHN)YUTieya...

  • 标签: DEW Point SENSORS Surface CONDUCTIVITY
  • 简介:Thepapershortlyreviewsthebasicdirectapproachesappliedinsearchingforviablesolutionstosolarfuelproduction.Thesearegenerallydistinguishedinmolecularandsemiconductor(non-molecular)systems,however,hybridstrategies,proposedrecently,havealsobeenincluded.Themostpromisingeffortsareconsidered,highlightingkeyaspectsandemergingcriticalissues.Specialattentionispaidtoaspectssuchaselectrodearchitecture,devicedesign,andmaindifferencesinthescientificvisionandchallengestodirectlyproducesolarfuels.Thisoverviewcouldbeusefultoorientatethereadersinthewidepanoramaofresearchactivitiesconcerningwatersplitting,naturalandartificialphotosynthesis,andsolarfuelproductionthroughtheidentificationofcommonaspects,specialtiesandpotentialitiesofthemanyinitiativesandapproachesthataredevelopingworldwideinthisfieldwiththefinalaimtomeetworldenergydemand.

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