简介：Inordertogaincircularlypolarizedlightofleft-handedandright-handedrotationbyusingafixeddevice,aleft-handedandright-handedrotationdoublefunctioncircularpolarizerisdesignedwithtwoλ/4retardersandonepolarizer,anditsoperatingprincipleisanalysedbymatrixopticalmeans.Theresultindicatesthatwhenthemonochromaticlightentersthiscircularpolarizerinthepositivedirectionandthenegativedirection,theemergentlightshouldbecircularlypolarizedlight,ofleft-handedandright-handedrotationrespectively.Thetestingsystemhasbeenestablishedtoverifytheaboveresults.

简介：Todayabout15%ofthenumberofpeopleisleft-handed.Butwhyarepeopleleft-handed?Theansweristhewaythebrain(大脑)works.Thebrainhastwohalves——therighthalfandthelefthalf.Therighthalfcontrols(控制)theleftsideofthebody,andtheleftcontrolstherightsideofthebody.

简介：Thispaperderivestheforceoftheelectromagneticradiationonleft-handedmaterials(LHMs)byadirectapplica-tionoftheLorentzlawofclassicalelectrodynamics.TheexpressionsofradiationforcearegivenforTE-polarisedandTM-polarisedfields.Thenumericalresultsdemonstratethatelectromagneticwavesexertaninverselateralradiationforceoneachedgeofthebeams,thatis,thelateralpressureisexpansiveforTE-polarisedbeamsandcompressiveforTM-polarisedbeams.TheinvestigationoftheradiationforcewillprovideinsightsintothefundamentalpropertiesofLHMsandwillprovidetobetterunderstandingoftheinteractionoflightwithLHMs.

简介：在微弱地指导的盒子中，在核心和左手的材料纤维的cladding的力量繁殖被解决麦克斯韦鈥檚方程获得。波导效率在截止并且远离截止被分析。远离截止，波导效率等于到1。在截止，为m=0，1，波导效率平等者到零；为m=2，波导效率来临到无限；为m>2，波导效率是不到零，但是它的绝对值比1大。那些是左手的材料纤维的新奇特征。CLC数字TN253这个工作被中国(60277025)和上海领先的学术学科工程(T0102)的国家性质科学基础支持

简介：WepresentbeamsolutionsofthestronglynonlocalnonlinearSchrodingerequationinleft-handedmaterials(LHMs).DifferentLaguerre-Gaussian(LG)necklacebeams,suchassymmetricandasymmetricsinglelayerandmultilayernecklacebeamsarecreatedbythesuperpositionoftwosinglebeamswithdifferenttopologicalcharges.SuchsuperpositionsarethenpropagatedthroughLHMs,displayinglineardiffraction.ItisfoundthatthesuperpositionoftwoLG_(nm)beamswithoppositetopologicalchargesdoesnotshowrotationalbehaviorandthatthereexistsrotationforothertopologicalchargecombinations.OurtheorypredictsthattheaccessiblesolitonscannotexistinLHMs,

简介：Wedemonstrateaphotonicbandgap(PBG)fromone-dimensional(1D)periodicstructurescreatedbyadouble-layerunitcellwithanairlayerandananisotropicnonmagneticleft-handedmetamaterial(LHM)layerwhosepermittivityelementsarepartiallynegative.TherequirementsimposedonthematerialsandstructurestorealizeaPBGarederivedwhenthefrequencyisaboveorbelowthecutofffrequency,andthetransmissionpropertiesofthePBGarediscussedbyutilizing4×4transfer-matrixmethodwithdispersivesemiconductormetamaterial.