Gore rapfuura, timu yaSheng Zhigao, muongorori paHigh Magnetic Field Center yeHefei Institute of Physical Sayenzi, Chinese Academy of Sciences, yakagadzira inoshanda uye nehungwaru terahertz electro-optic modulator ichitsamira pane yakatsiga-yepamusoro magineti kuyedza. mudziyo. Tsvagiridzo inoburitswa mu ACS Applied Materials & Interfaces.
Kunyangwe tekinoroji yeterahertz iine epamusoro spectral hunhu uye yakafara tarisiro yekushandiswa, kushanda kwayo kweinjiniya kuchiri kushomeka nekuvandudzwa kwezvinhu zveterahertz uye zvikamu zveterahertz. Pakati pavo, iyo inoshanda uye nehungwaru kutonga kwe terahertz wave nemunda wekunze ndiyo yakakosha kutungamira mundima iyi.
Tichitarisa kune yekucheka-kumucheto yekutsvagisa nzira yeterahertz yakakosha zvikamu, Chikwata chekutsvagisa chakagadzira terahertz stress modulator yakavakirwa pane maviri-dimensional zvinhu graphene [Adv. Optical Mater. 6, 1700877(2018)], Terahertz Broadband photocontrolled modulator yakavakirwa pane yakasimba yakabatana oxide [ACS Appl. Mater. Inter. 12, Mushure me48811(2020)] uye phonon-yakavakirwa itsva imwe-frequency magineti-inodzorwa terahertz sosi [Advanced Sayenzi 9, 2103229(2021)], iyo yakabatana erekitironi oxide vanadium diokisi firimu inosarudzwa seye inoshanda layer, yakawanda-layer chimiro. dhizaini uye nzira yemagetsi yekudzora inogamuchirwa. Multifunctional active modulation ye terahertz kutapurirana, kufungisisa uye kunwa kunowanikwa (Mufananidzo a). Mhedzisiro yacho inoratidza kuti mukuwedzera kune iyo transmittance uye absorptivity, iyo reflectivity uye fungidziro chikamu chinogona zvakare kushingaira kudzorwa nendima yemagetsi, umo reflectivity modulation kudzika kunogona kusvika 99.9% uye chikamu chekuratidzira chinogona kusvika ~ 180o modulation (Mufananidzo b) . Zvinotonyanya kufadza, kuti uwane hungwaru hwekutonga kwemagetsi terahertz, vaongorori vakagadzira mudziyo une novel "terahertz - electric-terahertz" mhinduro loop (Mufananidzo c). Pasinei nekushanduka kwemamiriro ekutanga uye nharaunda yekunze, iyo smart kifaa inogona kungosvika iyo yakatarwa (inotarisirwa) terahertz modulation kukosha mukati memasekondi makumi matatu.
(a) Schematic dhayagiramu yeelectro optic modulatoryakavakirwa paVO2
(b) shanduko yekutapurirana, kuratidzira, kunyura uye ratidziro chikamu neinofadza yazvino
(c) dhiyabhorosi dhizaini yehungwaru kutonga
Kugadzirwa kweiyo inoshanda uye yakangwara terahertzelectro-optic modulatorzvichibva pane zvakabatana zvemagetsi zvinhu zvinopa pfungwa nyowani yekuzadzikiswa kwe terahertz intelligent control. Basa iri rakatsigirwa neNational Key Research and Development Program, National Natural Science Foundation uye High Magnetic Field Laboratory Direction Fund yeAnhui Province.
Nguva yekutumira: Aug-08-2023