I te tau kua hipa, i whakawhanakehia e te tīma a Sheng Zhigao, he kairangahau i te High Magnetic Field Center o te Hefei Institute of Physical Sciences, Chinese Academy of Sciences, tētahi modulator electro-optic terahertz hohe, atamai hoki e whakawhirinaki ana ki te taputapu whakamātautau aukume teitei pumau. Kua whakaputaina te rangahau ki roto i te ACS Applied Materials & Interfaces.
Ahakoa he pai ake ngā āhuatanga ā-ira me ngā whānuitanga o ngā tono a te hangarau terahertz, kei te tino whakawhāitihia tonutia tōna tono hangarau e te whanaketanga o ngā rauemi terahertz me ngā wāhanga terahertz. I roto i ēnei, ko te whakahaere kaha me te mohio o te ngaru terahertz mā te mara o waho he huarahi rangahau nui i tēnei mara.
I te arotahi ki te ahunga rangahau hou o ngā wāhanga matua o terahertz, kua hangaia e te tīma rangahau he kaiwhakatikatika ahotea terahertz i runga i te rauemi rua-ahu graphene [Adv. Optical Mater. 6, 1700877(2018)], he kaiwhakatikatika whakaahua whānui Terahertz i runga i te waikura e hono kaha ana [ACS Appl. Mater. Inter. 12, After 48811(2020)] me te pūtake terahertz hou e whakahaeretia ana e te aukume auau-kotahi e hangai ana ki te phonon [Advanced Science 9, 2103229(2021)], ko te kiriata hauhā vanadium waikura irahiko e hono ana ka tīpakohia hei paparanga mahi, ka whakamahia te hoahoa hanganga maha-paparanga me te tikanga whakahaere hiko. Ka tutuki te whakatikatika hohe maha-mahi o te tuku, te whakaata me te mimiti terahertz (Pikitia a). E whakaatu ana ngā hua, haunga te whakawhiti me te mimiti, ka taea hoki te whakahaere kaha i te wāhanga whakaata me te whakaata e te mara hiko, ka taea e te hohonutanga whakarerekētanga whakaata te eke ki te 99.9%, ā, ka taea e te wāhanga whakaata te eke ki te ~180o whakarerekētanga (Pikitia b). He mea whakamīharo ake, hei whakatutuki i te mana hiko terahertz atamai, i hangaia e ngā kairangahau he taputapu me te porowhita urupare "terahertz - hiko-terahertz" hou (Pikitia c). Ahakoa ngā huringa o ngā āhuatanga tīmatanga me te taiao o waho, ka taea e te taputapu atamai te eke aunoa ki te uara whakarerekētanga terahertz kua whakaritea (e tumanakohia ana) i roto i te 30 hēkona pea.
(a) Te hoahoa kauwhata o tētahipūwhakarerekētanga whatu hikoi runga i te VO2
(b) ngā panonitanga o te tuku, te whakaata, te mimiti me te wāhanga whakaata me te iahiko i pāngia
(c) te hoahoa kauwhata o te mana whakahaere atamai
Te whanaketanga o tētahi terahertz hohe, atamai hokikaiwhakarerekē hiko-whatuKo ngā rauemi hiko e pā ana ki tēnei mahi e whakarato ana i tētahi whakaaro hou mō te whakatinanatanga o te mana atamai terahertz. I tautokona tēnei mahi e te National Key Research and Development Program, te National Natural Science Foundation me te High Magnetic Field Laboratory Direction Fund o te Porowini o Anhui.
Wā tuku: Akuhata-08-2023