Ulwakhiwo lwe-Ingaas Powdetector

Ulwakhiwo lweI-Ingaas Poldetector

Ukusukela kwiminyaka yoo-1980, abaphandi basekhaya nakwamanye amazwe baye bafunda ubume befotwide ye-ICAAS, ehlulwe ikakhulu ziintlobo ezintathu. Bangama-i-i-i-i-i-i-i-i-i-i-izeas-semicondcuctotectetectetecttory (msm-pd), I-Ingaas Popleetectctory (PIN-PD), NO IVENAAS AValasdetectote (APD-PD). Kukho umahluko obonakalayo kwinkqubo yokufakelwa kunye neendleko zeefoto ze-IKAAA kunye nezakhiwo ezahlukeneyo, kwaye kukho ukwahluka okukhulu kwisebe.

Intsimbi ye-Imeaas-Semiconductor-intsimbiifoto, eboniswe kwi-‧), luhlobo olukhethekileyo olusekwe kwi-Schottky Junction. Ngo-1992, uShi et al. Sebenzisa itekhnoloji yentsimbi ephantsi yentsimbi ephantsi kwe-Epitar I-Spired Grali yeSigaba se-Molecroulaxy (Gesmbe) ukukhulisa i-Inas-Inp Epitaxy Facer. I-Ialas Sambar ibonise iimpawu eziphathekayo eziphathekayo, kwaye iimeko zokukhula zaye zalandelwa ngumlinganiso we-x-ray ray, ukuze i-joy smismatch phakathi kwe-I-I-IZaas kunye ne-Inali yayiphakathi koluhlu lwe-1 × 10⁻³. Oku kukhokelela ekusebenzeni kwefowuni elungiselelwe i-0.75 PA / `m² kwi-10 v kunye ne-MORMDEE ye-v kunye ne-MSM kwi-5 v.

I-InAas Popitetectctectctote yomzobo ifaka ungqimba lwe-Intrinsic phakathi kohlobo lonxibelelwano lwe-p kunye nohlobo lwe-N-Chwether yohlobo, njengoko iboniswe kwi-10 yeefoto ze-elektroni kwaye yenze ifoto enkulu ye-elektroniki, ke inomsebenzi obalaseleyo wokwenziwa kwendalo. Ngo-2007, A.POLOCHEZ ETA. Sebenzisa i-mbe ukukhulisa i-buffer ye-buffer ye-buffer yokuphucula ubunzima bomhlaba kwaye woyise i-lattice mismatch phakathi kwe-SI ne-Inp. I-MOCVD isetyenziselwa ukudibanisa ubume bePIN ye-IPANAAS kwi-InP Subrest, kwaye ukuphendula kwesixhobo yayimalunga ne-0.57A / w. Ngo-2011, iLebhu yoPhando yeMkhosi (i-alr) i-Piepeeteeteete Opperdians ukufunda umboniso we-lida ye-Hipyave eNgeyo, kunye nokudityaniswa kwe-microwave ye-microwave ye-microwave iphucule umyinge wengxolo ye-Insaas Popledetector. Oku, ngo-2012, i-alr isebenzise le mvakalelo ye-lidar yeerobhothi, kunye noluhlu olungaphezulu kwe-50 m kunye nesisombululo se-256 × 128.

I-I-I-MAGAASI-Avalanche Pempletetectluhlobo lwefoto enobuchule, ubume obuboniswayo kwi-10 (c). Isibini se-elektroni sifumana amandla aneleyo phantsi kwendawo yombane ngaphakathi kwingingqi yokuphinda kabini, ukuze kungqubana ne-atom kunye nefuthe lokuhamba kwamanye amakhonkco, kunye nokuphindaphinda iziqwengana ezingalinganiyo kwimpahla. Ngo-2013, uGeorge M wayesebenzisa i-mbe yokukhulisa i-lattice ehambelana ne-i-I-IP ye-IP ye-InP, esebenzisa utshintsho kwi-Inp Guick, kwaye usebenzise utshintsho olunengxaki yokwandisa i-inyaysises ye-elektroshock ngelixa kuncitshiswa i-inyay yase-Electroshock ngelixa kuncitshiswa i-inyay yase-Electroshock ngelixa kuncitshiswa i-ionsulis ye-elektroshop. Kwinzuzo efanayo yokufumana isiphumo, i-APD ibonisa ingxolo esezantsi kwaye incinci emnyama. Ngo-2016, ilanga Jianfecng et al. Yakhelwe iseti ye-1570 ye-NM Laser esebenzayo yokuvavanya iqonga elisekwe kwi-Inokubaaas Avalanche Isiphaluka sangaphakathi seI-APD yefotoIfunyenwe i-echoes kwaye ikhuphe ngqo imiqondiso yedijithali, esenza sonke isixhobo se-compact. Iziphumo zovavanyo ziyaboniswa kwi-Fig. (d) kunye (e). Umzobo (d) yifoto yomzimba yethagethi yengcinga, kunye ne-10 Ingabonwa ngokucacileyo ukuba indawo yefestile yengingqi inomgama othile kunye nendawo a kunye b. Iqonga libonisa ububanzi be-pulse ngaphantsi kwe-10 NS, i-pulse enye (1 ~ 3) i-MJ iguqukile, ifumana i-lens ye-inile ye-2 ° khz, indawo yokuguqula i-1 khz yomgangatho wama-60%. Thanks to APD's internal photocurrent gain, fast response, compact size, durability and low cost, APD photodetectors can be an order of magnitude higher in detection rate than PIN photodetectors, so the current mainstream liDAR is mainly dominated by avalanche photodetectors.

Ngokubanzi, ngophuhliso olukhawulezileyo lwetekhnoloji yokulungiselela i-Iaaas ekhaya nakwamanye amazwe, sinokusebenzisa ngobuchule i-MBE, i-MOCVD, i-LPE kunye nolunye uhlobo lwe-pitas oluphezulu kwi-Inp subrate kwi-InP subrate. I-Ingaas Pogeeteate ibonisa ukuba i-Oppel Deed Deed Office yangoku kunye neMpahla iphantsi, owona mfuneko iphantsi iphantsi iphantsi kwe-0.75 PA / μm², i-A / W / W, kwaye unempendulo yethutyana (i-PS). Ukuphuhliswa kwexesha elizayo kwe-Ingaas Iifoto ze-ITAAs ziya kugxila kwezi zinto zimbini zilandelayo: (1) I-Ingsaas Fitaxial Ikhuselwe ngokuthe ngqo kwi-SIFRE. Okwangoku, uninzi lwezixhobo ze-hirdective kwimarike ziziseko ze-SI, kwaye nophuhliso oluhlangeneyo lwe-ICAAS kunye noS olusekwe kwitrap ngokubanzi. Ukucombulula iingxaki ezinje nge-lattice mismatch kunye nokwandiswa kwe-thermal ukwanda komahluko kubalulekile kufundo lwe-IMAAS / SI; . Ngokwanda kwamacandelo, i-lattice mismatch phakathi kwe-IP ye-IP kunye ne-Insaas Fitatial iya kukhokelela ekusasazeni okungakumbi kunye neziphene, ke kufuneka inciphise isiphene se-Latice, kwaye sinciphise ifowuni imnyama yangoku.