Hurihuripūoko whakaahua silicon（Kaiwhakaahua Si）
Pūoko whakaahua hiraka-katoa hurihuri（Pūoko whakaahua Si）, te mahi i tua atu i te tikanga tuku iho
I te mea kua piki haere te uaua o ngā tauira matauranga horihori me ngā whatunga io hohonu, ka nui ake ngā tono a ngā rōpū rorohiko ki te whakawhitiwhiti whatunga i waenga i ngā tukatuka, te mahara me ngā pona rorohiko. Heoi, kāore i taea e ngā whatunga tuku iho i runga i te maramara me te whatunga i waenga i ngā maramara e hangai ana ki ngā hononga hiko te whakatutuki i te hiahia e tipu haere ana mō te whānui o te whānui, te whakaroa me te whakapaunga hiko. Hei whakaoti i tēnei arai, ko te hangarau hononga whatu me tōna tawhiti tuku roa, te tere tere, me ngā painga whai hua nui o te pūngao, ka noho hei tumanako mō te whanaketanga ā muri ake nei. I roto i ēnei, ko te hangarau photonic silicon e hangai ana ki te tukanga CMOS e whakaatu ana i te kaha nui nā tōna whakaurunga teitei, te utu iti me te tika o te tukatuka. Heoi, he maha tonu ngā wero e pā ana ki te whakatinanatanga o ngā taputapu whakaahua-teitei. I te nuinga o te wā, me whakauru e ngā taputapu whakaahua ngā rauemi me te āputa roopu whaiti, pērā i te germanium (Ge), hei whakapai ake i te mahi kimi, engari ka arahi hoki tēnei ki ngā tukanga hanga uaua ake, ngā utu teitei ake, me ngā hua koretake. Nā te taputapu whakaahua-katoa-silicon i whakawhanakehia e te tīma rangahau i eke ki te tere tuku raraunga o te 160 Gb/s mō ia hongere me te kore e whakamahia te germanium, me te tapeke o te whānui tuku o te 1.28 Tb/s, nā roto i te hoahoa auaha o te resonator rua-microring.
Nō nā tata nei, kua whakaputahia e tētahi rōpū rangahau tahi i te Hononga o Amerika tētahi rangahau auaha, e kī ana kua angitu tā rātou whakawhanake i tētahi photodiode avalanche katoa-silicon (Pūoko whakaahua APD) maramara. He tere tino tere tēnei maramara, ā, he iti te utu o te atanga whakaahua-hiko, e matapaetia ana ka eke ki te neke atu i te 3.2 Tb ia hekona te whakawhiti raraunga i roto i ngā whatunga whatu a meake nei.
Te whanaketanga hangarau: te hoahoa o te resonator mowhiti iti takirua
He maha ngā wā ka rerekē te whānui o te hononga me te urupare o ngā taputapu whakaahua tuku iho. I angitu te tīma rangahau ki te whakaiti i tēnei rerekētanga mā te whakamahi i tētahi hoahoa resonator rua-mōro, ā, i pehi pai i te whakawhitiwhiti kōrero i waenga i ngā hongere. E whakaatu ana ngā hua whakamātautau ko tepūoko whakaahua-hākawa katoahe urupare A o te 0.4 A/W, he iahiko pōuri he iti ki te 1 nA, he whānui te whānui o te 40 GHz, ā, he tino iti te whakawhitiwhiti hiko o raro iho i te −50 dB. He rite tonu tēnei mahi ki ngā taputapu whakaahua arumoni o nāianei e hangai ana ki ngā rauemi silicon-germanium me III-V.
Te titiro ki te heke mai: Te ara ki te auahatanga i roto i ngā whatunga whatu
Ko te angitu o te whanaketanga o te taputapu whakaahua-katoa-silicon kāore i te hipa noa i te otinga tuku iho i roto i te hangarau, engari i tutuki hoki he penapena utu tata ki te 40%, e whakatuwhera ana i te ara mo te whakatutukitanga o ngā whatunga whatu tere-nui, iti te utu a muri ake nei. He tino hototahi te hangarau ki ngā tukanga CMOS o nāianei, he tino teitei te hua me te hua, ā, e tumanakohia ana ka noho hei wāhanga paerewa i roto i te mara o te hangarau whakaahua-silicon a muri ake nei. I te heke mai, kei te whakamahere te rōpū rangahau ki te haere tonu ki te arotau i te hoahoa hei whakapai ake i te tere mimiti me te mahi whānui o te taputapu whakaahua mā te whakaiti i ngā kukū doping me te whakapai ake i ngā tikanga whakaurunga. I taua wā anō, ka tūhuratia hoki e te rangahau me pēhea te whakamahi i tēnei hangarau-katoa-silicon ki ngā whatunga whatu i roto i ngā tautau AI o te whakatupuranga e whai ake nei hei whakatutuki i te whānui teitei ake, te tauine me te whai hua o te pūngao.
Wā tuku: Maehe-31-2025