Kunyaka ophelileyo, iqela likaSheng Zhigao, umphandi kwiZiko leMagnetic Field yeHefei Institute of Physical Sciences, iAcademy yaseTshayina yeSayensi, iphuhlise imodyuli esebenzayo nekrelekrele ye-terahertz ye-electro-optic exhomekeke kuvavanyo oluzinzileyo lwemagnethi. isixhobo.Uphando lupapashwe kwi-ACS Applied Materials & Interfaces.
Nangona itekhnoloji ye-terahertz ineempawu ezibalaseleyo zokubonwa kunye nethemba losetyenziso olubanzi, usetyenziso lwayo lobunjineli lusathintelwa ngokunzulu kuphuhliso lwemathiriyeli ye-terahertz kunye namalungu e-terahertz.Phakathi kwabo, ulawulo olusebenzayo kunye nobukrelekrele be-terahertz wave ngentsimi yangaphandle lukhokelo lophando olubalulekileyo kule ndawo.
Ijolise kumda wophando olusingqinisiso lwamacandelo aphambili e-terahertz, Iqela lophando lenze imodyuli yoxinzelelo lwe-terahertz esekwe kwigraphene yezinto ezimacala mabini [Adv.I-Optical Mater.6, 1700877 (2018)], i-Terahertz broadband photocontrolled modulator esekelwe kwi-oxide ehambelana kakhulu [i-ACS Appl.Mater.Inter.I-12, Emva kwe-48811 (2020)] kunye ne-phonon-based based based single-frequency-controlled magnetic-controlled terahertz source [Advanced Science 9, 2103229 (2021)], ifilimu edibeneyo ye-electron oxide vanadium dioxide ikhethwa njengomaleko osebenzayo, isakhiwo se-multi-layer structure. uyilo kunye nendlela yokulawula i-elektroniki yamkelwe.Ukumodareyitha okusebenzayo okusebenzayo kokudluliswa kwe-terahertz, ukubonakalisa kunye nokufunxa kuphunyeziwe (Umfanekiso a).Iziphumo zibonisa ukuba ukongeza kwi-transmittance kunye ne-absorptivity, i-reflection kunye ne-reflection phase nayo inokulawulwa ngokusebenzayo yintsimi yombane, apho ubunzulu bemodyuli ye-reflectionivity inokufikelela kwi-99.9% kunye nesigaba sokubonisa sinokufikelela ~ 180o modulation (Figure b) .Okuthakazelisayo ngakumbi, ukufezekisa ulawulo lombane oluhlakaniphile lwe-terahertz, abaphandi baqulunqa isixhobo esinenoveli ethi "terahertz - electric-terahertz" feedback loop (Figure c).Kungakhathaliseki ukuba utshintsho kwiimeko zokuqala kunye nokusingqongileyo kwangaphandle, isixhobo esihlakaniphile sinokufikelela ngokuzenzekelayo kwisethi (ekulindeleke) ixabiso lokumodareyitha i-terahertz malunga nemizuzwana engama-30.
(a) Umzobo woyilo lweimodyuli ye-electro opticisekelwe kwi-VO2
(b) iinguqu zothutho, ukubonakalisa, ukufunxa kunye nesigaba sokubonisa ngokuchukumisayo okwangoku
(c) isazobe solawulo olukrelekrele
Ukuphuhliswa kwe-terahertz esebenzayo kunye nehlakaniphileimodyuli ye-electro-opticngokusekwe kwizinto ezinxulumene ne-elektroniki zibonelela ngombono omtsha wokuphunyezwa kolawulo olukrelekrele lwe-terahertz.Lo msebenzi uxhaswe yiNkqubo yoPhando oluPhambili kunye noPhuhliso lweSizwe, iSiseko seSizwe seSayensi yeNdalo kunye neNgxowa-mali yeSikhokelo seLabhoratri yeMagnetic Field yePhondo lase-Anhui.
Ixesha lokuposa: Aug-08-2023