Pūoko whakaahua lithium niobate (LN) kiriata angiangi

Pūoko whakaahua lithium niobate (LN) kiriata angiangi

He hanganga karaihe ahurei tō te lithium niobate (LN) me ōna pānga ā-tinana whai rawa, pērā i ngā pānga kore-raina, ngā pānga hiko-whatu, ngā pānga pyroelectric, me ngā pānga piezoelectric. I taua wā anō, he painga tōna o te matapihi mārama whatu whānui me te pumau mō te wā roa. Nā ēnei āhuatanga ka waiho te LN hei tūāpapa nui mō te whakatupuranga hou o ngā photonics whakauru. I roto i ngā taputapu whatu me ngā pūnaha optoelectronic, ka taea e ngā āhuatanga o te LN te whakarato i ngā mahi me te mahi whai rawa, e whakatairanga ana i te whanaketanga o te whakawhitiwhiti whatu, te rorohiko whatu, me ngā mara tirotiro whatu. Heoi, nā te ngoikore o ngā āhuatanga mimiti me te whakamarumaru o te lithium niobate, kei te raru tonu te tono whakauru o te lithium niobate ki te uaua ki te kimi. I ngā tau tata nei, ko ngā pūrongo i roto i tēnei mara ko ngā taputapu whakaahua whakauru arataki ngaru me ngā taputapu whakaahua heterojunction.
Ko te taputapu whakaahua-arataki ngaru whakauru i runga i te lithium niobate e aro nui ana ki te roopu whakawhitiwhiti whatu C (1525-1565nm). Mō te mahi, ko te LN te nuinga o te mahi hei ngaru ārahi, ko te mahi kimi optoelectronic ia e whakawhirinaki ana ki ngā semiconductors pērā i te silicon, ngā semiconductors whaiti roopu III-V, me ngā rauemi rua-ahu. I roto i tēnei hoahoa, ka tukuna te mārama mā roto i ngā arataki ngaru whatu lithium niobate me te iti o te ngaronga, kātahi ka mimitihia e ētahi atu rauemi semiconductors i runga i ngā pānga photoelectric (pēnei i te photoconductivity, i ngā pānga photovoltaic rānei) hei whakanui ake i te kukū kawe me te huri hei tohu hiko mō te putanga. Ko ngā painga ko te whānui whakahaere teitei (~GHz), te iti o te ngaohiko whakahaere, te iti o te rahi, me te hototahi ki te whakaurunga maramara photonic. Heoi, nā te wehenga ā-wāhi o ngā rauemi lithium niobate me te semiconductor, ahakoa e mahi ana ia i ā rātou ake mahi, ko te LN anake te mahi hei ārahi i ngā ngaru, ā, kāore i te whakamahia pai ētahi atu āhuatanga ke. Ko ngā rauemi semiconductors anake te mahi hei hurihanga photoelectric, ā, kāore he hononga tautoko tetahi ki tetahi, ka hua ake he roopu mahi iti noa iho. Mō te whakatinanatanga motuhake, ko te hononga o te mārama mai i te pūtake mārama ki te arataki ngaru whatu lithium niobate ka hua ake he mate nui me ngā whakaritenga tukanga tino uaua. Hei tāpiri, he uaua ki te whakatikatika i te mana whatu tuturu o te mārama e whiti ana ki te hongere taputapu haurua-ira i te rohe hononga, ka whakawhāiti i tana mahi kimi.
Ko te tikanga tuku ihonga kaitirotiro whakaahuaKo ngā mea e whakamahia ana mō ngā tono whakaahua he mea hangai ki ngā rauemi semiconductor. Nō reira, mō te lithium niobate, nā te iti o te tere mimiti mārama me ōna āhuatanga ārai, kāore i te tino manakohia e ngā kairangahau photodetector, ā, he wāhi uaua anō hoki i te ao. Heoi, nā te whanaketanga o te hangarau heterojunction i ngā tau tata nei kua kawea mai he tumanako ki te rangahau i ngā photodetector e hangai ana ki te lithium niobate. Ko ētahi atu rauemi he kaha te mimiti mārama, he pai rānei te kawe hiko ka taea te whakauru ki te lithium niobate hei utu mō ōna ngoikoretanga. I taua wā anō, ko ngā āhuatanga pyroelectric i puta mai i te polarization ohorere o te lithium niobate nā tōna anisotropy hanganga ka taea te whakahaere mā te huri ki te wera i raro i te hihi mārama, ā, ka huri i ngā āhuatanga pyroelectric mō te kite optoelectronic. He painga tēnei pānga wera o te whānui me te taraiwa-ake, ā, ka taea te tāpiri pai me te whakakotahi ki ētahi atu rauemi. Nā te whakamahinga tukutahi o ngā pānga wera me te photoelectric kua whakatuwhera i tētahi wā hou mō ngā photodetector e hangai ana ki te lithium niobate, e āhei ai ngā taputapu ki te whakakotahi i ngā painga o ngā pānga e rua. Ā, hei utu mō ngā ngoikoretanga me te whakatutuki i te whakaurunga tautoko o ngā painga, he wāhi rangahau i ngā tau tata nei. Hei tāpiritanga, he kōwhiringa pai hoki te whakamahinga o te whakaurunga katote, te hangarau roopu, me te hangarau hapa hei whakaoti rapanga i te uauatanga o te kimi i te lithium niobate. Heoi, nā te uauatanga o te tukatuka o te lithium niobate, kei te aro tonu tēnei mara ki ngā wero nui pērā i te iti o te whakaurunga, ngā taputapu me ngā pūnaha whakaahua rarangi, me te koretake o te mahi, he nui te uara rangahau me te wāhi.

Ahua 1, mā te whakamahi i ngā āhua pūngao hapa i roto i te āputa LN hei pokapū kaituku irahiko, ka whakaputaina ngā kaikawe utu kore utu i roto i te awhi kawe i raro i te whakaoho mārama kitea. Ki te whakatauritea ki ngā taputapu whakaahua LN pyroelectric o mua, i te nuinga o te wā i herea ki te tere urupare tata ki te 100Hz, ko tēneiPūoko whakaahua LNhe tere ake te urupare tae atu ki te 10kHz. I taua wā, i roto i tēnei mahi, i whakaaturia ka taea e te LN i tāpirihia ki te konupora katote te whakatutuki i te whakarerekētanga mārama o waho me te urupare tae atu ki te 10kHz. E whakatairanga ana tēnei mahi i te rangahau mō te mahi-teitei me tengā pūoko whakaahua LN tere-teiteii roto i te hanganga o ngā maramara whakaahua LN whakauru maramara kotahi e mahi katoa ana.
Hei whakarāpopototanga, ko te mara rangahau ongā pūoko whakaahua lithium niobate kiriata angiangiHe hiranga nui tōna ki te pūtaiao, ā, he nui hoki te kaha ki te whakamahi. I te heke mai, me te whanaketanga o te hangarau me te hohonutanga o te rangahau, ka whanake ngā taputapu whakaahua lithium niobate (LN) kiriata angiangi ki te whakaurunga teitei ake. Mā te whakakotahi i ngā tikanga whakaurunga rerekē hei whakatutuki i ngā taputapu whakaahua lithium niobate kiriata angiangi tino pai, tere te urupare, me te whānuitanga whānui o ngā āhuatanga katoa ka tutuki, ka tino whakatairanga i te whanaketanga o te whakaurunga ki runga maramara me ngā mara mohio, ā, ka nui ake ngā huarahi mō te whakatupuranga hou o ngā tono photonics.