Cov yam ntxwv yooj yim ntawm cov cim ntawm Optical teeb liab Photodetectors

Cov yam ntxwv yooj yim ntawm cov cim ntawm kho qhov muagphotodetectors:

Ua ntej tshuaj xyuas ntau yam ntaub ntawv ntawm photodetectors, tus xeeb ceem tej yam ntawm kev ua haujlwm ntawm kev ua haujlwm ntawmKho Qhov Muag Photodetectorsyog summarized. Cov yam ntxwv no suav nrog cov lus teb kev xeeb ceem, cov lus teb tsis zoo, suab sib npaug ntawm lub hwj chim (NEP), thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev dag tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev dag tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev tshawb pom tshwj xeeb, thiab kev dag tshwj xeeb, thiab kev tshawb pom tshwj xeeb. D *), Quanum ua tau zoo, thiab lub sijhawm teb.

1. RD tau siv los ua kom pom cov lus teb rhiab ntawm cov cuab yeej mus rau hluav taws xob kho qhov muag. Nws yog sawv cev los ntawm qhov sib piv ntawm cov zis teeb liab mus rau teeb meem teeb meem. Cov xeeb ceem no tsis cuam tshuam cov suab nrov ntawm cov cuab yeej, tab sis tsuas yog kev ua tau zoo ntawm kev hloov hluav taws xob hluav taws xob hluav taws xob hluav taws xob zog rau hauv kev tam sim no lossis hluav taws xob. Yog li ntawd, nws yuav txawv nrog nthwv dej ntawm lub teeb lub teeb teeb liab. Ib qho ntxiv, lub hwj chim teb cov yam ntxwv kuj tseem muaj kev ua haujlwm ntawm kev ua neeg tsis ncaj ncees thiab huab cua sov.

2. Lub ntsiab lus hais txog cov xeeb ceem yog qhov ua rau muaj kev sib raug zoo ntawm lub hwj chim ntawm lub zog ntes thiab lub nthwv dej teeb meem ntawm cov teeb meem tshwm sim kho dua tshiab. Cov ntsiab lus pom ntawm cov yam ntxwv ntawm kev siv kho qhov muag ntawm txawv wavelengths feem ntau yog piav qhia ntau ntawm "kev teb teb spectral". Nws yuav tsum raug sau tseg tias tsuas yog qhov siab tshaj plaws kev teb cov yam ntxwv ntawm cov neeg txheeb ze yog ntsuas los ntawm cov neeg txheeb ze muaj txiaj ntsig zoo tshaj plaws raws li tus nqi ntau tshaj plaws ntawm cov yam ntxwv zoo tshaj plaws.

3. Lub suab nrov sib npaug yog qhov xwm txheej teeb pom kev xav tau thaum lub cim tso zis hluav taws xob ntsuas yog sib npaug ntawm cov suab nrov hauv lub suab nrov ntawm lub ntaus hluav taws xob ntawm lub ntaus ntawv nws tus kheej. Nws yog qhov tseem ceeb uas txiav txim siab qhov kev siv hluav taws xob tsawg kawg uas tuaj yeem ntsuas los ntawm lub ntsuas teeb tsa kho qhov muag, uas yog qhov paub txog kev paub txog.

4. Kev paub meej meej yog cov xeeb ceem ntawm cov xeeb ntxwv uas suav tus yam ntxwv ntawm cov khoom siv ntawm cov ntaub ntawv ntawm cov ntes. Nws sawv cev qhov teeb meem qis tshaj plaws lub photon tam sim no uas tuaj yeem ntsuas los ntawm lub ntsuas hluav taws xob ntsuas. Nws tus nqi tuaj yeem sib txawv raws li kev ua haujlwm ntawm lub wavelength ntes ntawm lub teeb ntsuas lub teeb ntsuas (xws li qhov kub thiab lwm yam, thov kev tsis txhob txwm, thiab lwm yam). Qhov loj dua lub ntes bandwidth, qhov loj dua lub teeb liab teeb liab cheeb tsam, tus me dua lub suab nrov sib npaug ntawm lub zog NEP, thiab ntau dua cov suab nrov sib npaug. Cov kev tshawb pom tshwj xeeb tshaj plaws ntawm cov neeg ntes tau txhais tau tias nws yog qhov tsim nyog rau kev kuaj pom ntawm ntau cov cim hluav taws xob tsis muaj zog.

5. Quantum efficitic Q yog lwm tus yam ntxwv tseem ceeb uas tsis tseem ceeb ntawm kev ntsuas teeb liab. Nws txhais tau tias yog qhov sib piv ntawm cov naj npawb ntawm ntau ntawm cov lus teb "Cov lus teb" tsim tawm los ntawm lub photomon hauv lub tshuab hluav taws xob teeb meem ntawm cov khoom siv ntawm cov duab thaij. Piv txwv li, rau cov teeb liab teeb pom kev ua haujlwm ntawm lub photon efficiency yog qhov sib piv ntawm cov photosecectitive cov khoom siv rau tus naj npawb ntawm photons ntawm cov teeb liab ntsuas tau npaj rau saum npoo. Nyob rau hauv ib qho kev ntsuas teeb tsa kho qhov muag tau siv cov khoom siv txuas ntxiv uas yog cov khoom siv hluav taws xob tau muab suav nrog cov teeb tsa lub teeb ntsuas los ntawm cov cim teeb pom kev zoo photons. Lwm qhov sawv cev ntawm Quantum efficiency ntawm lub ntsuas hluav taws xob kho qhov muag tau yog los ntawm kev ntes lub luag haujlwm RD.

6 Thaum lub teeb ntsuas kev ntsuas ntsuas tau muab kho rau hauv daim ntawv ntawm lub teeb hluav taws xob yuav tsum tau "sawv ntawm cov kev ntsuas ntawm cov tshuaj ntsuam xyuas" tom qab lub sijhawm teb, thiab los ntawm " Peak "Thiab tom qab ntawd poob rov qab mus rau thawj zaug" xoom tus nqi "coj mus rau qhov kev txiav txim ntawm lub teeb mem tes. Txhawm rau piav cov lus teb ntawm lub ntes mus rau kev siv hluav taws xob ntsuas hluav taws xob nce los ntawm nws cov nqi siab ntawm 10% mus rau 90% yog hu ua "sawv Lub sijhawm ", thiab lub sijhawm ntawm cov teeb liab hluav taws xob cov mem tes ntog los ntawm nws cov nqi ntau tshaj ntawm 90% yog hu ua" lub sijhawm poob "lossis" lub sijhawm lwj ".

7. Lus teb kab yog lwm tus yam ntxwv tseem ceeb uas ua rau muaj kev sib raug zoo ntawm cov kev ntsuas ntawm qhov muag ntawm lub teeb meem ntsuas kho qhov teeb meem ntsuas ntsuas. Nws yuav tsum tau cov zis ntawm lubKev Ntsuas Kho Qhov MuagYuav kom sib npaug nyob rau hauv ib tug ntau ntau ntawm kev siv ntawm ntsuas ntsuas qhov muag. Feem ntau nws tau hais txog qhov feem pua ​​ntawm cov lus tawm-officity tawm hauv cov lus qhia tawm tsam yog cov lus teb tawm ntawm lub ntsuas hluav taws xob ntsuas.