Mfundo ndi momwe zilili ndi zithunzi za Avalche (APD Photodetor) gawo lachiwiri

Mfundo ndi kupezeka kwaChithunzithunzi cha Avalche (Photodtector) Gawo Lachiwiri

2.2 APD Chip Dongosolo
Kapangidwe kakang'ono ka chip ndiye chitsimikizo choyambirira cha zida zapamwamba. Mapangidwe a mapangidwe a add makamaka nthawi zonse nthawi zonse, hole yonyamula pa hertala yonyamula, nthawi yonyamula nthawi kudutsa dera lozizira ndi zina zotero. Kukula kwa kapangidwe kake kamafotokozedwa pamwambapa:

(1) Kapangidwe koyambira
Kapangidwe kakang'ono kwambiri kokhazikika kumakhazikitsidwa pa pini ya Photodiode, malo a p dera ndi dera lokhala ndi ma eleclant pdera ndi mabowo, kuti azindikirenso mtundu wa Properiction. Pazinthu zowerengeka, chifukwa dzenje la mankhwala ogwiritsira ntchito ndi wamkulu kuposa ma elekitiron electron yolumikizira, malo omwe amapezeka a N-Ly Trap amaikidwa mu dera la P. Munthawi yabwino, mabowo okha amalowetsedwa kudera lopeza, kotero kapangidwe kameneka kapangidwe kameneka kamatchedwa kuti dzenje lolowetsedwa.

(2) Mayamwidwe ndi phindu limasiyanitsidwa
Chifukwa cha kuchuluka kwa mipanda yosiyanasiyana ya inp (ipp ndi 1.35ev ndi ingaas ndi 0.75ev), INP nthawi zambiri amagwiritsidwa ntchito ngati zida zonerera.

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Pakadali pano, zida zambiri zamalonda zimagwiritsa ntchito zidziwitso za ITP / Ing'amba, Ing'amba Pazinthu izi, mapangidwe a apd uyu ndikuti njira ya Avanche imapangidwira mu AVP mwa kugunda kwa mabowo. Poganizira za kusiyana kwakukulu mu band Gap pakati pa ikati ndi inghaas, kusiyana kwamphamvu kwa mabowo omwe atulutsidwa mumphepete mwa hertoas asanafikeko. Vutoli litha kuthetsedwa powonjezera kusintha kwa inghaasp pakati pa zinthu ziwirizi.

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Pofuna kusintha magawidwe amagetsi a mayamwidwe ndi phindu, omwe amalipidwa amayambitsidwa mu chipangizocho, chomwe chimathandiza kwambiri kuthamanga kwa chipangizocho komanso kuyankha.

(5) Resinator Onjezani (RE) SAGCM
Pazinthu zoyenera kuposa zoyeserera za zikhalidwe, tiyenera kukumana ndi kuti kuyamwa kwa mayamwidwe ndi chinthu chotsutsana ndi gawo la chipangizocho komanso kuchuluka kwa ntchito. Makulidwe owonda a kuyamwa amatha kuchepetsa nthawi yonyamula, kotero bandwidth yayikulu ikhoza kupezeka. Komabe, nthawi yomweyo, kuti apeze phindu lalikulu, mayamwidwe amafunika kukhala ndi makulidwe okwanira. Njira yothetsera vutoli imatha kukhala yopanda tanthauzo (RECE), ndiye kuti, wowonetsera bragghor (dbr) amapangidwa pansi ndi pamwamba pa chipangizocho. Galasi la DRB ili ndi mitundu iwiri ya zinthu zokhala ndi mndandanda wotsika ndi mndandanda wokwanira, ndipo makulidwe awiriwa amakumana ndi vutoli. Kapangidwe kanthawi kochepa kwa cholembera kumatha kukwaniritsa zofunikira, makulidwe a mayamwidwe kumatha kunenepa kwambiri, ndipo kuchuluka kwa mphamvu ya elekitoni kumawonjezeka pambuyo pazithunzi zingapo.

(6) mawonekedwe ophatikizidwa (WG-APD)
Njira ina yothetsera kutsutsana ndi zovuta zosiyanasiyana zakuya kwa kuyamwa kwa utoto ndi luso la kuchuluka ndikukhazikitsa mawonekedwe ophatikizika. Kapangidwe kameneka kumazungulira kuchokera kumbali, chifukwa kuyamwa kwa kuyamwa kuli kwa nthawi yayitali, ndikosavuta kupeza mphamvu yayitali, ndipo nthawi yomweyo, mayanjidwe otsekemera amatha kunenepa kwambiri, kuchepetsa nthawi yotsika mtengo. Chifukwa chake, kapangidwe kameneka kumathetsa kudalira kosiyana ndi gulu la bandwidth ndi luso la kuyamwa kwa kuyamwa, ndipo akuyembekezeka kukwaniritsa kuchuluka kwakukulu komanso kuchuluka kwa apd. Njira ya WG-APD ndizosavuta kuposa momwe Rce Apd, zomwe zimachotsa njira yovuta yokonzekera ya DBB. Chifukwa chake, ndikotheka kwambiri mu gawo lothandiza komanso loyenera la mapulogalamu wamba.

3. Kumaliza
Kukula kwa AvalanchochithunziZipangizo ndi zida zimawunikiridwa. Ma elekitironi ndi dzenje lakusintha mitengo ya intP ili pafupi ndi a intlas, omwe amatsogolera kuwirikiza kawiri, zomwe zimapangitsa kumanga nthawi yayitali ndipo phokoso limakulirakulira. Poyerekeza ndi zida zoyera, ingaas (p) / Inalas ndi in (Al) / Intalas Stealain bwino ali ndi chiwerengero chowonjezereka cha kuphatikizapo. Pankhani ya kapangidwe kake, REANEORD (RECE) SUGCMME NDI DZIKO LAPANSI (WG-APD) limapangidwa kuti lithetse mavuto osiyanasiyana osokoneza bongo a liwiro la chipangizocho ndi kuchuluka kwa ntchito. Chifukwa cha zovuta za njirayi, kugwiritsa ntchito kokwanira kwa nyumba ziwirizi kuyenera kuchitikanso.