Te hangarau hou o te taputapu whakaahua silicon angiangi

Hangarau hou opūoko whakaahua silicon angiangi
Ka whakamahia ngā hanganga hopu photon hei whakarei ake i te mimiti mārama i roto i ngā mea angiangingā taputapu whakaahua silicon
Kei te tere haere te rongonui o ngā pūnaha whakaahua i roto i ngā tono hou maha, tae atu ki ngā whakawhitiwhitinga whatu, te kite i te liDAR, me te whakaahua hauora. Heoi, ko te whakamahinga whānui o te whakaahua i roto i ngā otinga hangarau a meake nei e whakawhirinaki ana ki te utu o te hanga.nga kaitirotiro whakaahua, e whakawhirinaki ana tēnei ki te momo haurua-ira e whakamahia ana mō taua kaupapa.
Ko te silicon (Si) te mea tino kitea i roto i te umanga hikohiko, ā, kua tino pakari te nuinga o ngā umanga ki tēnei rauemi. Heoi anō, he ngoikore te tauwehenga mimiti mārama o te Si i roto i te whānuitanga tata-whero (NIR) ki te whakataurite ki ētahi atu mea hikohiko pērā i te gallium arsenide (GaAs). Nā tēnei, kei te tupu pai ngā GaAs me ngā koranu e pā ana ki ngā tono photonic engari kāore e hototahi ki ngā tukanga tuku iho o te mea hikohiko whakarewa-waikura (CMOS) e whakamahia ana i roto i te hanga o te nuinga o ngā hikohiko. Nā tēnei i piki ake ai ngā utu hanga.
Kua hangaia e ngā kairangahau tētahi huarahi hei whakarei ake i te mimiti tata-infrared i roto i te silicon, ka taea ai te whakaiti i ngā utu i roto i ngā taputapu photonic mahi-teitei, ā, kei te tīmata tētahi rōpū rangahau UC Davis i tētahi rautaki hou hei whakapai ake i te mimiti mārama i roto i ngā kiriata angiangi silicon. I roto i tā rātou tuhinga hou i Advanced Photonics Nexus, ka whakaatuhia e rātou mō te wā tuatahi tētahi whakaaturanga whakamātautau o tētahi taputapu whakaahua e hangai ana ki te silicon me ngā hanganga moroiti me te nano-mata e hopu ana i te mārama, e tutuki ai ngā whakapainga mahi kāore i kitea i mua i te rite ki ngā GaA me ētahi atu semiconductors rōpū III-V. Ko te taputapu whakaahua he pereti silicon porotaka matotoru-micron e whakanohoia ana ki runga i tētahi papa whakamahana, me ngā "maihao" whakarewa e toro atu ana i roto i te ahua maihao-marau mai i te whakarewa pa i te tihi o te pereti. He mea nui, kua whakakiia te silicon puranga ki ngā kōhao porohita kua whakaritea i roto i tētahi tauira ā-wā e mahi ana hei wāhi hopu photon. Ko te hanganga whānui o te taputapu ka meinga te mārama e puta mai ana kia piko tata ki te 90° ina pa ki te mata, ka taea ai e ia te horapa ki te taha i te papa Si. Ka whakanuia e ēnei momo horapa taha te roa o te haerenga o te mārama, ā, ka whakaroahia hoki, ka nui ake ngā taunekeneke o te mārama-te-matū, ā, ka nui ake te mimiti.
I whakahaerehia hoki e ngā kairangahau ngā whakatauira whatu me ngā tātaritanga ariā hei mārama ake i ngā pānga o ngā hanganga hopu photon, ā, i whakahaerehia ētahi whakamātautau e whakataurite ana i ngā taputapu kite whakaahua me te kore. I kitea e rātou ko te hopu photon i hua ake ai he whakapainga nui i te whai huatanga o te mimiti whānui i roto i te whānuitanga NIR, e noho ana i runga ake i te 68% me te tihi o te 86%. He mea tika kia mōhiotia i roto i te roopu tata-whero, ko te tauwehenga mimiti o te taputapu kite whakaahua hopu photon he maha ngā wā teitei ake i te silicon noa, e nui ake ana i te gallium arsenide. Hei tāpiri, ahakoa ko te hoahoa kua whakaarohia mō ngā pereti silicon matotoru 1μm, ko ngā whakatauira o ngā kiriata silicon 30 nm me te 100 nm e hototahi ana ki ngā hiko CMOS e whakaatu ana i te mahi whakarei ake.
I te nuinga o te wā, e whakaatu ana ngā hua o tēnei rangahau i tētahi rautaki whai hua mō te whakapai ake i te mahi a ngā taputapu whakaahua e hangai ana ki te silicon i roto i ngā tono photonics hou. Ka taea te whakatutuki i te mimiti teitei ahakoa i roto i ngā paparanga silicon tino angiangi, ā, ka taea te pupuri i te kaha pirinoa o te ara iahiko kia iti, he mea nui tēnei i roto i ngā pūnaha tere-tiketike. Hei tāpiri, he hototahi te tikanga kua whakaarohia ki ngā tukanga hanga CMOS hou, nō reira he kaha ki te huri i te huarahi e whakauruhia ai ngā optoelectronics ki ngā ara iahiko tuku iho. Mā tēnei, ka taea te whakarite i te ara mō ngā peke nui i roto i ngā whatunga rorohiko tino tere me te hangarau whakaahua utu nui.