简介:Alongwiththedevelopmentsonthehardware'stechniqueoftheLEDelectronicdisplay,thecontrolsoftwarewasalsoaskedtoadvancetoanewlevel.Theoldsoftwareofourcompanycouldn'tdemandnolonger.It'ssatisfythecustomer'snecessarytodesignanewplaysoftwaretoshowtheadvantagesoftheLEDelectronicdisplay.
简介:Alow-costlight-emittingdiode(LED)issufficienttopumpaquasi-continuous-wavebidirectionalhigh-Qwhispering-galleryresonatorlasermadeofNd:YVO4.ThisisremarkablebecauseoftheverylimitedspatialandspectralcoherenceofanLED.TheLED,deliveringupto3.5W,centeredaround810nm,isturnedoninintervalsof100μsduration,andfortheseperiodsalaseroutputexceeding0.8mWhasbeenverified.Furthermore,0.1-s-longlaserpulsesaredemonstrated.Tothebestofourknowledge,thisisthefirstdemonstrationofanLED-pumpedhigh-Qwhispering-gallerylaser.Theconceptcanbeextendedeasilytootherlaseractivematerials.AprospectisalsotopumpseveralofsuchlaserswithasingleLED.
简介:Inthepresentwork,theLEDchipwasirradiatedbyusing59.6MeVNionsinaterminalchamberoftheSector-focusedcyclotron(SFC)intheNationalLabortaryofHeavy-ionAcceleratorsinLanzhou.The63MeVNionspenetratedthroughagoldfoilandscatteredinalargearea.Theenergyofionwasreducedto59.6MeVafterscatteringofthegoldfoil.TheLEDwasprovidedbytheSemiconductorLightingCenterinInstituteofSemiconductorinBeijing.TheluminencesoftheLEDbefore/afterirradiationweretestedthroughaintegratingsphereinSemiconductorLightingCenterinInstituteofSemiconductorinBeijing.Theluminancewastestedunderacurrentof350mA.Fig.1showstherelationshipbetweentheluminencesandtheirradiationfluences.Theirradiationledto
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