Te Ahunga Whakamua o te RangahauPūoko whakaahua InGaAs
I te tipu tere o te rahinga tuku raraunga whakawhitiwhiti, kua whakakapia e te hangarau hononga whatu te hangarau hononga hiko tuku iho, ā, kua noho hei hangarau matua mō te tuku tere-rahi waenga me te tawhiti roa. Hei wāhanga matua o te pito whiwhi whatu, ko tepūoko whakaahuaKei te piki haere ngā whakaritenga mō tana mahi tere-teitei. I roto i ēnei, he iti te rahi o te taputapu whakaahua hono arataki ngaru, he nui te whānui o te hononga, ā, he ngāwari ki te whakauru ki runga maramara me ētahi atu taputapu optoelectronic, koinei te arotahi rangahau o te taputapu whakaahua tere-teitei. Ā, ko ēnei ngā taputapu whakaahua tino tohu i roto i te roopu whakawhitiwhiti tata-whero.
Ko te InGaAs tētahi o ngā rauemi tino pai mō te whakatutuki i te tere teitei me tengā pūoko whakaahua urupare-teiteiTuatahi, he rauemi haurua whakawhiti tika te InGaAs, ā, ka taea te whakahaere i tōna whānui o te whakawhiti mā te ōwehenga i waenga i te In me te Ga, ka taea ai te kite i ngā tohu whatu o ngā roangaru rerekē. I roto i ēnei, he tino ōrite te In0.53Ga0.47As ki te whatunga papa InP, ā, he tino teitei te tauwehenga mimiti mārama i roto i te roopu whakawhitiwhiti whatu. Koinei te mea e whakamahia whānuitia ana i roto i te whakarite i te taputapu whakaahua, ā, he tino pai hoki te mahi o te ia pōuri me te urupare. Tuarua, he tino teitei te tere o te nekeneke irahiko o ngā rauemi InGaAs me InP, ā, ko ō rāua tere nekeneke irahiko kua kōtui tata ki te 1×107cm/s. I taua wā, i raro i ngā mara hiko motuhake, ka whakaatuhia e ngā rauemi InGaAs me InP ngā pānga tere irahiko, ā, ko ō rāua tere irahiko ka eke ki te 4×107cm/s me te 6×107cm/s. He pai ki te whakatutuki i te whānui whakawhiti teitei ake. I tēnei wā, ko ngā taputapu whakaahua InGaAs ngā taputapu whakaahua matua mō te whakawhitiwhiti whatu. Kua whakawhanakehia hoki ngā pūoko tauhohenga mata iti ake, he tauhohe whakamuri, he whānui-aho teitei hoki, ā, e whakamahia ana i roto i ngā tono pēnei i te tere teitei me te mākū teitei.
Heoi, nā ngā herenga o ā rātou tikanga honohono, he uaua te whakauru i ngā taputapu kite taupatupatu mata ki ētahi atu taputapu hiko-whakaata. Nō reira, i te pikinga ake o te hiahia mō te whakaurunga hiko-whakaata, kua noho haere ngā taputapu kite whakaahua InGaAs hono ngaru he pai te mahi, ā, he pai mō te whakauru hei kaupapa matua o te rangahau. I roto i ēnei, ko ngā waeine kite whakaahua InGaAs arumoni o te 70GHz me te 110GHz e whakamahi ana i ngā hanganga honohono ngaru. E ai ki te rerekētanga o ngā rauemi papa, ka taea te whakarōpū i ngā taputapu kite whakaahua InGaAs hono ngaru kia rua ngā momo: INP-based me Si-based. He kounga teitei te rauemi epitaxial i runga i ngā papa InP, ā, he pai ake mō te hanga taputapu mahi-teitei. Heoi, mō ngā rauemi rōpū III-V i whakatipuhia, i herea rānei ki runga i ngā papa Si, nā te maha o ngā rerekētanga i waenga i ngā rauemi InGaAs me ngā papa Si, he iti te kounga o te rauemi, o te atanga rānei, ā, he nui tonu te wāhi hei whakapai ake i te mahi a ngā taputapu.
Ka whakamahia e te taputapu te InGaAsP hei utu mō te InP hei rauemi mō te rohe mimiti. Ahakoa ka whakaitihia te tere o te rere o ngā irahiko ki tētahi taumata, ka whakapai ake i te hononga o te mārama taunga mai i te arataki ngaru ki te rohe mimiti. I taua wā anō, ka tangohia te paparanga whakapā momo-N InGaAsP, ā, ka hangaia he āputa iti i ia taha o te mata momo-P, ka whakarei ake i te herenga o te mara mārama. He pai ki te taputapu kia eke ki te urupare teitei ake.
Te wā tuku: Hurae-28-2025