A novel terahertz device with multi-function of polarization and switch based on phase transition of VO2-中国期刊网

摘要 Aterahertz（THz）polarizerandswitchstructureisproposedbasedonthephasetransitionofvanadiumdioxide（VO2）.WhenVO2isintheinsulationphase,theresonancefrequenciesoftheproposedstructureare1.49THzand1.22THzforthex-andy-polarization,respectively.ItcanperformasaTHzpolarizerwithextinctionratiosof52.5dBand17dBforthey-andx-polarization,respectively;WhenVO2transformsintometallicphase,theresonancefrequencyforx-polarizationwaveshiftsfrom1.49THzto1.22THz,whilethatremainsstillforthey-polarizationcomponent.Itmeansthatthestructurecanworkasapolarization-dependentTHzswitchwithahighextinctionratioof32dB.

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A novel terahertz device with multi-function of polarization and switch based on phase transition of VO2

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A novel terahertz device with multi-function of polarization and switch based on phase transition of VO2

来源期刊

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