Gore rapera, chikwata chaSheng Zhigao, muongorori paHigh Magnetic Field Center yeHefei Institute of Physical Sciences, Chinese Academy of Sciences, chakagadzira modulator inoshanda uye yakangwara yeterahertz electro-optic inoshandisa mudziyo wekuedza we steady-state high magnetic field. Tsvagiridzo iyi yakaburitswa muACS Applied Materials & Interfaces.
Kunyangwe tekinoroji yeterahertz iine hunhu hwepamusoro hwespectral uye mikana yakawanda yekushandisa, kushandiswa kwayo kweinjiniya kuchiri kuganhurirwa zvakanyanya nekugadzirwa kwezvinhu zveterahertz nezvikamu zveterahertz. Pakati pazvo, kudzora kwakangwara uye kwakasimba kwemafungu eterahertz kuburikidza nekunze kwemunda inzira yakakosha yekutsvagisa munharaunda iyi.
Vachivavarira kutsvaga nzira yepamusoro yekutsvaga zvikamu zvepakati zveterahertz, chikwata chekutsvagisa chakagadzira modulator ye terahertz stress yakavakirwa pa graphene ine mativi maviri [Adv. Optical Mater. 6, 1700877(2018)], modulator yeTerahertz broadband photocontrolled yakavakirwa pa oxide yakabatana zvakanyanya [ACS Appl. Mater. Inter. 12, After 48811(2020)] uye phonon-based new single-frequency magnetic-controlled terahertz source [Advanced Science 9, 2103229(2021)], firimu re associated electron oxide vanadium dioxide rinosarudzwa se functional layer, multi-layer structure design uye electronic control method zvinotorwa. Multifunctional active modulation ye terahertz transmission, reflection uye absorption inowanikwa (Mufananidzo a). Mhedzisiro yacho inoratidza kuti pamusoro pekutumira uye kunyudzwa, chikamu chekuratidzira uye chekuratidzira chinogonawo kudzorwa nesimba nemagetsi, umo kudzika kwekuchinja kwekuratidzira kunogona kusvika 99.9% uye chikamu chekuratidzira chinogona kusvika ~180o modulation (Mufananidzo b). Chinonakidza zvikuru, kuti vawane kudzora kwemagetsi kweterahertz kwakangwara, vaongorori vakagadzira mudziyo une "terahertz - electric-terahertz" feedback loop itsva (Mufananidzo c). Pasinei nekuchinja kwemamiriro ekutanga uye nharaunda yekunze, mudziyo wakangwara unogona kusvika otomatiki pahuwandu hweseti (inotarisirwa) yeterahertz modulation mumasekondi angangoita makumi matatu.
(a) Dhayagiramu yechirongwa chemodulator ye electro opticzvichibva paVO2
(b) shanduko dzekutumira, kufungisisa, kunyudzwa uye chikamu chekufungisisa chine simba remagetsi rakafadzwa
(c) dhayagiramu yehurongwa hwekudzora kwakangwara
Kugadzirwa kweterahertz inoshanda uye yakangwaramodulator yemagetsi-opticZvakavakirwa pazvinhu zvemagetsi zvine chekuita nazvo zvinopa pfungwa itsva yekuzadzikiswa kwekutonga kwakangwara kweterahertz. Basa iri rakatsigirwa neNational Key Research and Development Program, National Natural Science Foundation neHigh Magnetic Field Laboratory Direction Fund yeAnhui Province.
Nguva yekutumira: Nyamavhuvhu-08-2023