Pūoko whakaahua horonga kotahi-ira SPAD

SPADpūoko whakaahua horonga kotahi-ira

I te wā i whakaurua tuatahitia ai ngā pūoko whakaahua SPAD, i whakamahia nuitia ēnei i roto i ngā horopaki kitenga i te iti o te mārama. Heoi, i te whanaketanga o tā rātou mahi me te whanaketanga o ngā whakaritenga tirohanga,Pūoko whakaahua SPADKua piki haere te whakamahinga o ngā pūoko i roto i ngā āhuatanga kaihoko pēnei i ngā radar motuka, ngā karetao, me ngā waka rererangi kore tangata. Nā te teitei o te aro me te iti o ngā āhuatanga haruru, kua waiho te pūoko whakaahua SPAD hei whiringa pai mō te whakatutuki i te tirohanga hohonu me te whakaahua mārama iti.

He rerekē tēnei i ngā pūoko whakaahua CMOS tuku iho (CIS) e hangai ana ki ngā hononga PN, ko te hanganga matua o te pūoko whakaahua SPAD he diode avalanche e mahi ana i te aratau Geiger. Mai i te tirohanga o ngā tikanga ā-tinana, he nui ake te uaua o te pūoko whakaahua SPAD i ērā o ngā taputapu hononga PN. Ko te nuinga o tēnei e whakaatahia ana i roto i te meka i raro i te pēhanga whakamuri teitei, he nui ake te tūponotanga ka puta he raruraru pēnei i te werohanga o ngā kaikawe kore taurite, ngā pānga irahiko wera, me ngā ia rere e āwhinahia ana e ngā āhua hapa. Mā ēnei āhuatanga ka raru nui i ngā taumata hoahoa, tukanga, me te hoahoa ara iahiko.

Ngā tawhā mahi noa oPūoko whakaahua horonga SPADkei roto ko te Rahi Pika (Rahi Pika), te haruru tatau pōuri (DCR), te tūponotanga kite mārama (PDE), te Wā mate (Wā mate), me te Wā urupare (Wā urupare). Ka pā tika ēnei tawhā ki te mahi a te pūoko whakaahua avalanche SPAD. Hei tauira, ko te tere tatau pōuri (DCR) he tawhā matua mō te tautuhi i te haruru pūoko, ā, me pupuri e te SPAD he pēhanga teitei ake i te pakaru kia mahi ai hei pūoko kotahi-photon. Ko te tūponotanga o te kite mārama (PDE) ka whakatau i te aro o te SPAD.pūoko whakaahua horongaā, ka pāngia e te kaha me te tohatoha o te mara hiko. Hei tāpiri, ko te Wā Mate te wā e hiahiatia ana kia hoki te SPAD ki tōna āhua tīmatanga i muri i te whakaoho, ka pā ki te tere kitenga photon mōrahi me te whānuitanga hihiri.

I roto i te arotautanga mahi o ngā taputapu SPAD, he wero nui te whanaungatanga here i waenga i ngā tawhā mahi matua: hei tauira, ko te whakaitiiti i ngā pika ka arahi tika ki te whakaiti i te PDE, ā, ko te kukū o ngā mara hiko taha i puta mai i te whakaitiiti i te rahi ka hua ake hoki he pikinga koi o te DCR. Mā te whakaiti i te wā mate ka puta te haruru i muri i te nekehanga, ā, ka heke te tika o te wiri wā. Ināianei, kua tutuki i te otinga matatau tētahi taumata o te arotautanga mahi tahi mā roto i ngā tikanga pēnei i te DTI/ porowhita tiaki (te pehi i te whakawhitiwhiti kōrero me te whakaiti i te DCR), te arotautanga whatu pika, te whakaurunga o ngā rauemi hou (te whakarei ake i te urupare infrared o te paparanga avalanche SiGe), me ngā ara iahiko tinei kaha kua whakarārangihia e toru-ahu.