I tera tau, i whakawhanakehia e te roopu a Sheng Zhigao, he kairangahau i te High Magnetic Field Centre o te Hefei Institute of Physical Sciences, Hainamana Academy of Sciences, i whakawhanake i tetahi modulator electro-optic terahertz kaha me te mohio, e whakawhirinaki ana ki te whakamatautauranga o te mara autō teitei. taputapu. Ka whakaputaina te rangahau i roto i te ACS Applied Materials & Interfaces.
Ahakoa he pai ake nga ahuatanga o te hangarau terahertz me te whanui o te tono, kei te tino iti tonu tana tono miihini na te whanaketanga o nga rawa terahertz me nga waahanga terahertz. I roto i a raatau, ko te mana kaha me te mohio o te ngaru terahertz ma te mara o waho he huarahi rangahau nui mo tenei mara.
Ko te whai ki te ahunga rangahau o nga waahanga matua terahertz, Kua waihangahia e te roopu rangahau he whakamaori ahotea terahertz i runga i te graphene rauemi ahu-rua [Adv. Mater Optical. 6, 1700877(2018)], he Terahertz aunui photocontrolled modulator i runga i te waikura tino hono [ACS Appl. Mater. Inter. 12, I muri mai i te 48811(2020)] me te puna teerahertz autō-whakahaere-a-waea-a-waea hou [Te Putaiao Ake 9, 2103229(2021)], ka tohua te kiriata vanadium dioxide irahiko irahiko hei paparanga mahi, hanganga paparanga maha. te hoahoa me te tikanga whakahaere hiko. Ko te whakarereketanga kaha maha o te tuku terahertz, te whakaata me te whakaurunga kua tutuki (Whakaahua a). Ko nga hua e whakaatu ana i tua atu i te whakawhiti me te absorptivity, ka taea hoki te whakahaere i te waahi whakaata me te waahi whakaata e te papa hiko, e taea ai te hohonu o te hurihanga whakaata ki te 99.9% me te waahanga whakaata ka tae ki te ~ 180o whakarereke (Whakaahua b) . Ko te mea whakamere, ki te whakatutuki i te mana hiko terahertz mohio, i hangaia e nga kairangahau tetahi taputapu me te purongo "terahertz - electric-terahertz" urupare urupare (Whakaahua c). Ahakoa nga huringa i roto i nga tikanga tiimata me te taiao o waho, ka taea e te taputapu atamai te tae aunoa ki te huinga (e tumanakohia ana) te uara whakarereke terahertz i roto i te 30 hēkona.
(a) Te hoahoa hoahoa o tete hiko optic modulatori runga i te VO2
(b) nga huringa o te whakawhiti, te whakaataata, te urunga me te wahanga whakaata ki te naianei whakamihi
(c) hoahoa hoahoa o te mana mohio
Te whakawhanaketanga o te terahertz kaha me te mohiomodulator electro-optici runga i nga rauemi hiko e hono ana he whakaaro hou mo te whakatinanatanga o te mana mohio terahertz. I tautokohia tenei mahi e te National Key Research and Development Programme, te National Natural Science Foundation me te High Magnetic Field Laboratory Direction Fund o Anhui Province.
Wā tuku: Akuhata-08-2023