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《2011 Excitation of surface plasma wave at TiN-air interface in the Kretschmann geometry JApplPhys_109_043104》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、JOURNALOFAPPLIEDPHYSICS109,043104(2011)ExcitationofsurfaceplasmawaveatTiN/airinterfaceintheKretschmanngeometry1,a)111213N.C.Chen,W.C.Lien,C.R.Liu,Y.L.Huang,Y.R.Lin,C.Chou,S.Y.Chang,4andC.W.Ho1InstituteofElectro-OpticalEngineering,DepartmentofElectronicEngineering,ChangGungUniversity,Tao-Yuan,Taiwan
2、2DepartmentofMaterialsEngineering,MingChiUniversityofTechnology,Taipei,Taiwan3DepartmentofOpticsandPhotonics,NationalCentralUniversity,Tao-Yuan,Taiwan4DepartmentofElectro-OpticalEngineering,NationalUnitedUniversity,Miao-Li,Taiwan(Received18October2010;accepted17December2010;publishedonline17Februar
3、y2011)Sincetitaniumnitrideappearsgoldenandhasahighconductivity,thepossibilitythatitcanbeusedinsurfaceplasmawaveapplicationsinamannersimilartogoldbutwithverystrongscratch-resistance,isofinterest.ThisworkconsidersthispossibilityusingtheKretschmannconfiguration,measuringtheangle-dependentreflectivityasw
4、ellasthewavelength-dependentreflectivity.BothsetsofresultsdemonstratetheexcitationofasurfaceplasmawaveattheTiN/airinterfacebyanincidentp-wave.ThethicknessofTiNthatmostefficientlycouplestheincidentp-wavetothesurfaceplasmawaveisaround35nm.Alloftheexperimentsareaccompaniedbycorrespondingnumericalsimulat
5、ions.VC2011AmericanInstituteofPhysics.[doi:10.1063/1.3549732]I.INTRODUCTIONandelectron-holepairsinsideanactivelayeristhebasisfornewclassesofveryhighlyefficientlightemittersandWhenanelectricfieldispresentinametal,thefreecar-6–13absorbers.riersinthemetaltendtomovetoscreenthefield.TheDrudeMostSPWstudies,
6、especiallyinthevisiblewavelengthfreecarriermodelrevealsthatthisscreeningcontributesneg-range,usenoblemetals,suchasgoldorsilver,forgeneratingativelytothepermittivity.Thus,ametalcanhaveanegativetheSPW.SincethesemetalsarehighlyductileandtheSPWspermittivityunlessthefrequencyoftheelectricfieldistooarehig
7、hlysensitivetothequalityofthemetalsurface,specialhighsothattheinertiaofthecarrierspreventsitfrombeingcareshouldbetakentopreventanymechanicaldamagetoeffectivelyscreened.Sincethepermittivityisnegative,apar-th
