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Nws yog lub teeb rhiab heev (photodetector) uas hloov lub teeb (xws li infrared hluav taws xob) rau hauv lub teeb liab hluav taws xob. Nws zoo li lub teeb pom kev zoo. Lub 20GHzHigh-speed PhotodetectorsQhov tseeb los ntawm kev kub ceev photodetector nws ntau-tshwj xeeb-photodetector Nws yog tshwj xeeb vim hais tias nws muaj peev xwm ntawm imaging lub teeb ntawm high speeds, ntawm speeds ntawm upto 20GHz. Qhov no txhais tau hais tias nws tuaj yeem khaws cov kev hloov pauv nrawm hauv lub teeb ntawm tus nqi deb tshaj li qhov qub photodetectors tuaj yeem ua tiav.
Ua ntej yuav mus rau hauv yuav ua li cas 20GHz high-speed photodetector ua haujlwm, cia peb tham txog yuav ua li cas lub photodetector ib txwm ua haujlwm. Raws li cov khoom siv, ib txwm photodetectors siv cov asemiconductor. Cov khoom no tseem ceeb heev vim nws tuaj yeem nqus tau lub teeb. Lub teeb hits lub semiconductor thiab tsim cov cab kuj zoo siab, lossis electrons. Qhov kev txav no tsim hluav taws xob teeb liab uas peb tuaj yeem ntes tau. Tus nqi ntawm qhov no tshwm sim tiag tiag yog kev ua haujlwm ntawm cov khoom ntawm cov khoom siv semiconductor.
Lub 20GHz kev kub ceev photodetector tuaj yeem siv rau ntau yam kev lag luam. Cov 20ghz kev kub ceev photodetector qhov zoo siab tshaj plaws yog nws txoj kev sib txuas lus. Nyob rau hauv cov ntaub ntawv no, high-ceev teeb pom kev zoo yuav pab kom sai thiab txhim khu kev qha cov ntaub ntawv kis tau tus mob. Qhov no enabled cov ntaub ntawv yuav tsum tau xa mus nyob rau hauv ntev kev deb sai, thiab qhov no yog ib qho tseem ceeb heev tivthaiv nrog tej yam xws li internet kev twb kev txuas thiab kev hu xov tooj ntawm tes.
"Nws pab kev kho mob ib yam nkaus," nws hais ntxiv. 24 Lub Peb Hlis 2020: Muaj kev nce qib, xws li endoscopes thiab microscopes, yog li cov duab zoo dua tuaj yeem nqa tau. Cov kws kho mob tau siv cov cuab yeej no los ua phooj ywg hauv lub cev, lossis tshawb xyuas cov ntsiab lus me me uas tsis yooj yim rau kev soj ntsuam. Txhim kho tus neeg mob kuaj mob thiab kev kho mob los ntawm kev txhim kho cov duab. Hauv kev tsim khoom, 20GHz high-speed photodetector kuj tuaj yeem yog ib qho kev pabcuam zoo los kuaj xyuas cov khoom tsis zoo ntawm cov kab ntau lawm.
Tag nrho cov nyob rau hauv tag nrho, piv nrog cov pa me me-grain photodetectors, th 1-PD grating 12ghz kev kub ceev photodetector thiab nws cov synthesis, muaj txiaj ntsig zoo. Ua ntej tshaj plaws, nws lub peev xwm nrhiav kom pom tseeb tso cai rau nws txhawm rau txheeb xyuas qhov sib txawv ntawm lub teeb nrawm heev, uas yog qhov muaj txiaj ntsig zoo hauv ntau thaj chaw thiab kev lag luam. Nws yog qhov tshwj xeeb tshaj yog siv rau cov ntawv thov uas lub sijhawm yog qhov tseem ceeb, raws li nws txheeb xyuas cov kev hloov pauv tam sim no.
Lwm qhov tseem ceeb qhov tseeb yog lub tshuab hluav taws xob siab ceev nrog 20GHz bandwidth yog qhov pom tseeb ntau dua li qhov qub photodetector. Qhov no ua rau nws pom ntau yam ntawm lub teeb frequencies. Qhov no yog tshwj xeeb tshaj yog muaj feem xyuam rau kev sib txuas lus, txij li thaum lub broadband frequencies ua kom cov ntaub ntawv ntau dua. Qhov ntawd tso cai rau ntau cov ntaub ntawv mus rau thiab xa mus rau ib lub sijhawm, ua kom muaj kev sib txuas lus sai dua.
Qhov no 20GHz high-speed photodetector muaj cov npe nrov hauv cheeb tsam. Nws yog siv nyob rau hauv lub 12 ghz photodetector Kev lag luam kev sib txuas lus thiab tuaj yeem siv rau kev xa cov ntaub ntawv ceev ceev, kom cov ntaub ntawv tuaj yeem xa thiab tau txais yuav luag tam sim ntawd. Koj tuaj yeem siv nws los tsim cov ntxaij lim dej uas cais cov zaus sib txawv ntawm lub teeb uas yuav yog tus yuam sij rau koj los tswj koj cov ntaub ntawv kev khiav tsheb.
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