摘要
ThenonreciprocalcirculardichroismandFaradayrotationeffectforterahertz(THz)wavesinlongitudinallymagnetizedInSbwereinvestigatedbytheoreticalandexperimentalstudiesintheTHzregime,whichindicateditsabilityforaTHzcircularlypolarizedisolator,THzcircularpolarizer,tunablepolarizationconverter,andpolarizationmodulatorbymanipulationofdifferentmagneticfields.Furthermore,wedemonstratedtheInSbplasmonicsbasedonitsmagneto-opticaleffectscombinedwithartificialmicrostructure.Wefoundthemagnetoopticalenhancementmechanismsinthismagneto-plasmonicstructure,achievingbroadbandnear-perfectorthogonallinearpolarizationconversionmodulatedbytheweakmagneticfieldinanexperimentwithanextinctionratioof33dB.Moreover,themagneto-opticalmodulationwithanamplitudemodulationdepthof95.8%canbeachievedbythisdeviceunderaweakmagneticfieldof150mT.InSbanditsmagneto-plasmonicdevicehavebroadpotentialforaTHzisolator,magneto-opticalmodulator,andpolarizationconvertorinTHzapplicationsystems.
出版日期
2019年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)