Ubuchwepheshe obusha weI-Fire Silicon PhotoDepector
Izimo ze-Photon Capture zisetshenziselwa ukuthuthukisa ukumuncwa kwezikhanya kancaneAma-Silicon PhotoDetectors
Amasistimu we-Photonic atholakala ngokushesha ngokutholwa ezisetshenzisweni eziningi ezivelayo, kufaka phakathi ukuxhumana kwe-Optical, ukuzwela kwe-lidar, kanye nokucabanga kwezokwelashwa. Kodwa-ke, ukwamukelwa okwenziwe ngemali kwe-Photonics kuzixazululo zobunjiniyela ezizayo kuya ngezindleko zokukhiqizaPhotoDeteectors, okuthi ngokuncika kakhulu kuhlobo lwe-semiconductor olusetshenziselwe leyo nhloso.
Ngokwesiko, i-silicon (SI) ibilokhu i-semiquonductor enkulu kakhulu embonini ye-elekthronikhi, kakhulu ukuze izimboni eziningi zivuthwe kulokhu okuqukethwe. Ngeshwa, i-coefficient enobuthakathaka obungenabuthakathaka ekukhanyiseni kwe-infrared (NIR) ngokuqhathaniswa namanye ama-semiconductors afana ne-gallium Arsenide (GAAS). Ngenxa yalokhu, ama-alloys ahlobene ne-GAAS kanye nama-alloys athuthukayo ayachuma ezinhlelweni ze-Photonic kepha azihambelani nezinqubo ze-semiconductor zensimbi ezihambisanayo zensimbi-oxide ezisetshenziselwa ukukhiqizwa kwama-elekthronikhi amaningi. Lokhu kuholele ekukhuphukeni okubukhali kwezindleko zabo zokukhiqiza.
Abaphenyi baye baceba indlela yokuthuthukisa kakhulu ukumuncwa kwe-silicon, okungaholela ekunciphiseni kwezindleko kumadivayisi asebenza kahle e-photonic, nethimba le-UC Davis Research liphayona isu elisha lokuthuthukisa kakhulu amafilimu alula. Ephepheni labo lakamuva e-Advanced Photonics Nexus, bakhombisa okokuqala ngqa ukubonakaliswa kokuhlolwa kwe-photodet esekelwe ku-silico. I-PhotoDector iqukethe ipuleti le-silicon eliminyene elibunjiwe elibekwe engxenyeni engezansi yokufaka i-substrate, ngeminwe "yensimbi" yenwebeka emfashini wefolishi ngomunwe kusuka ku-metal yokuxhumana ngaphezulu kwepuleti. Ngokubalulekile, i-silicon e-lumpy igcwele izimbobo eziyindilinga ezihlelwe ngephethini yesikhathi esenza njengezindawo zokubamba izithombe. Ukwakheka okuphelele kwensiza kubangela ukukhanya okuvame ukwenzeka ukugoba cishe cishe ngo-90 ° lapho kushaya indawo, ukuvumela ukusakazeka ngokuhamba kwesikhathi eceleni kwendiza ye-SI. Lezi zindlela zokusakazwa zakamuva zikhulisa ubude bokuhamba kokukhanya futhi zehlise ngejubane, okuholela ekuxhumaneni okukhanyayo okukhanyayo ngakho-ke ukumuncwa okwengeziwe.
Abaphenyi baphinde baqhuba ukumbumbuluzwa okubonakalayo kanye nokuhlaziywa kwethiyori ukuba baqonde kangcono imiphumela ye-Photon Captures, futhi yenze izivivinyo eziningana ngokuqhathanisa izithombe ze-PhotoDeter nazo. Bathole ukuthi i-Photon Capture iholele ekuthuthukisweni okubalulekile ekusebenzeni kwe-Broadband ku-NIR Spectrum, ukuhlala ngaphezulu kwama-68% ngenani eliphakeme lama-86%. Kuyaqapheleka ukuthi ebhendini eseduze ye-infrared, i-coefficient emunwe ye-Photon Capture iphakeme kaningana kunaleso se-silico ejwayelekile, edlula i-gallium arsenide edlula yonke. Ngaphezu kwalokho, yize umklamo ohlongozwayo ungowamapuleti angu-1μm ama-Silicon, ukumbumbuluzwa kwamafilimu angama-30 nm kanye namafilimu ayi-100 nm silicon ahambisana ne-CMO Electronics ekhombisa ukusebenza okufanayo okuthuthukile.
Sekukonke, imiphumela yalolu cwaningo ikhombisa isu elithembisayo lokwenza ngcono ukusebenza kwama-photodeteest asuselwa ku-silicon ezisetshenzisweni zezithombe ezifufusa. Ukutholwa okuphezulu kungatholwa ngisho nasezentebeni ze-silicon ezi-ultra-mncane, futhi amandla okubuyisana wesekethe angagcinwa aphansi, okubalulekile ezinhlelweni zesivinini esikhulu. Ngaphezu kwalokho, indlela ehlongozwayo iyahambisana nezinqubo zanamuhla zokukhiqiza ze-CMOs ngakho-ke inamandla okuguqula indlela i-Optoelectondics ehlanganiswe ngayo kwizibungu zendabuko. Lokhu, nakho, kungavuselela indlela yokuxhuma okukhulu kwamanethiwekhi atholakalayo we-Ultrafast computer kanye nobuchwepheshe bokucabanga.
Isikhathi sePosi: Nov-12-2024