简介：Inrecentyears,thepotentialofrenewablegreenenergysourceshasbeenextensivelystudied.Theproventechnologywhichisphotovoltaicsolarcellsstrictlydependsondaylightandproduceslow-efficiently.Toovercometherestrictions,onetechnologystudiedisthroughharvestingthethermalradiationenergywhichcanprovidea24-hourenergysource.Thecontinuityofenergysourcespromisesverygoodenergyconversionespeciallyformilitaryapplications.Thisarticlepresentsanewstructurethatcanharvesttheabundantthermalradiationenergyintousableenergyatthewavelengthof10μm.Arectangularstructurewithaperturbationslitwasdesignedtointegratewitharectifiercircuitforgreenenergyconversion.Theslittunneljunctionguidedtheelectromagneticfieldintoajunctionwheretheenergycouldbecollectedandconverted.Anenhancementfactorofapproximately110.6canbeachievedbyaperturbationslitlengthof1.0μm.Theresultsextractedfromtheproposeddesignpromiseabettercandidatetoovercomethedisadvantagesofphotovoltaicsolarcellsforenergyharvestingdevices.

简介：Anopticalfibermagneticfieldsensorforthedual-parametersimultaneousmeasurementisproposedanddemonstrated.Thesensorheadisconstructedbyapeanut-shapestructureandlongperiodfibergrating(LPFG)coatedbymagneticfluid(MF).Theexternalmagneticfieldintensitycanbemeasuredbythevariationofcharacteristicwavelength(Dip1andDip2)ininterferencespectrumsincetheeffectiverefractiveindexofMFchangeswithexternalmagneticfieldintensity.Whentheexternalmagneticfieldintensitychangesfrom0mTto20mT,themagneticfieldsensitivitiesofDip1andDip2are-0.064nm/mTand-0.041nm/mT,respectively.ExperimentalresultsshowthatthetemperaturesensitivitiesoftheDip1andDip2are0.233nm/℃and0.186nm/°C,respectively.Therefore,thesimultaneousmeasurementofthemagneticfieldintensityandtemperatureisdemonstratedbasedonthesensitivematrix.Ithassomepotentialapplicationsinaerospace,environmentalmonitoringandmedicalsensingfields.