Manipulation of Terahertz Radiation Using Vanadium Dioxide-中国期刊网

摘要 Vanadiumdioxide(VO2)isaphasetransitionmaterialwhichundergoesareversiblemetal-insulatortransition(MIT)whentriggeredbythermal,photo,electrical,andevenstress.ThehugeconductionchangeofVO2rendersitapromisingmaterialforterahertz(THz)manipulation.Inthispaper,someinterestingworksconcerningthegrowthandcharacteristicsoftheVO2filmareselectivelyreviewed.AswitchingofTHzradiationbyphoto-drivenVO2filmisdemonstrated.ExperimentsindicateanultrafastopticalswitchingtoTHztransmissionwithin8picoseconds,andaswitchingratioreachestoover80%duringawidefrequencyrangefrom0.3THzto2.5THz.

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Manipulation of Terahertz Radiation Using Vanadium Dioxide

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Manipulation of Terahertz Radiation Using Vanadium Dioxide

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