A photodetectoryog ib yam khoom uas kuaj pom thiab ntsuas lub teeb (photons) thiab hloov nws mus rau hauv lub teeb liab hluav taws xob. Photodetectors yog siv nyob rau hauv ntau yam kev siv xws li koob yees duab, lub teeb sensors, kev sib txuas lus systems, kho mob, thiab scientific instruments.
Nov yog qee cov ntsiab lus tseem ceeb ntawm photodetectors:
Hom ntawm Photodetectors
1) Photodiodes:
PN Photodiode: Ib qho yooj yim photodiode uas ua haujlwm los ntawm kev tsim hluav taws xob-qhov khub thaum raug lub teeb.
PIN Photodiode: suav nrog txheej txheej nruab nrab ntawm thaj tsam p-hom thiab n-hom, muab lub sijhawm teb zoo dua thiab rhiab heev.
Avalanche Photodiode: Muab kev nce ntxiv los ntawm cov txheej txheem avalanche ntau ntxiv, txhim kho lub teeb liab tab sis nrog lub suab nrov ntxiv.
2) Phototransistors: Zoo ib yam li photodiodes tab sis nrog kev ua haujlwm ntxiv ntawm transistor, muab kev nce siab dua tab sis qeeb teb lub sij hawm.
3) Photomultiplier Tubes (PMTs): Cov khoom siv hluav taws xob zoo heev uas siv cov nyhuv photoelectric hloov lub teeb rau hauv hluav taws xob cascade, muab kev nce siab thiab rhiab heev.
4) Charge-Coupled Devices (CCDs): Siv rau hauv daim ntawv thov kev yees duab, cov khoom siv no khaws cov nqi sib npaug rau lub teeb siv ntawm txhua pixel thiab tom qab ntawd nyeem tawm tus nqi los tsim cov duab.
5) Ua tiav Cov Hlau-Oxide-Semiconductor (CMOS) Sensors: Kuj tseem siv rau hauv kev kos duab, cov sensors integrate photodetectors thiab readout circuitry ntawm ib nti, muab kev siv hluav taws xob qis dua thiab nyeem ntawv sai dua li CCDs.
6) Photoresistors (LDRs): Hloov lawv cov hluav taws xob tiv thaiv hauv kev teb rau lub teeb siv, feem ntau siv rau hauv daim ntawv thov lub teeb pom kev yooj yim.
Daim ntawv thov
Kev yees duab: Cov koob yees duab, ob qho tib si digital thiab analog, siv photodetectors los ntes cov duab. Cov khoom siv kho mob kuj siv photodetectors rau X-ray, CT, thiab MRI systems.
Kev sib txuas lus: Fiber optic kev sib txuas lus tso siab rau photodetectors los hloov cov teeb liab teeb rov qab rau hauv hluav taws xob teeb liab.
Kev nyab xeeb thiab kev ruaj ntseg: Cov pa luam yeeb ntes, ceeb toom intruder, thiab lwm yam kev ruaj ntseg tshuab siv photodetectors kom paub lub teeb hloov.
Kev ntsuas kev tshawb fawb: Siv nyob rau hauv spectrometers, telescopes, thiab lwm yam twj paj nruag los ntsuas lub teeb siv thiab spectrum.
Consumer Electronics: Cov khoom siv xws li cov chaw taws teeb tswj, tsis siv neeg lub teeb pom kev zoo, thiab cov ntxaij vab tshaus kov siv photodetectors ua haujlwm.
Ntsiab Parameters
Teb: Qhov piv ntawm cov hluav taws xob tso tawm mus rau cov khoom siv kho qhov muag, qhia tias yuav ua li cas thiaj li photodetector hloov lub teeb rau lub teeb liab hluav taws xob.
Suab nrov: Tsis xav tau hluav taws xob hloov pauv uas tuaj yeem cuam tshuam cov teeb liab.Low-noise photodetectors yog qhov tseem ceeb rau cov ntawv thov siab.
Ceev: Lub sij hawm teb ntawm photodetector, tseem ceeb rau cov ntawv thov uas yuav tsum tau tshawb pom sai.
Wavelength Range: Qhov ntau ntawm lub teeb wavelengths lub photodetector tuaj yeem teb tau zoo.Qee qhov pom lub teeb pom kev zoo, thaum lwm tus tuaj yeem ntes ultraviolet lossis infrared teeb.
Photodetectors yog cov khoom tseem ceeb hauv ntau cov thev naus laus zis niaj hnub, muab ntau yam kev ua haujlwm los ntawm kev tshawb pom lub teeb pom kev yooj yim mus rau cov duab ua haujlwm nyuaj.
Photodetector lag luam forcast
Kev lag luam photodetector thoob ntiaj teb xav tias yuav pom kev loj hlob tseem ceeb hauv xyoo tom ntej. Raws li ntau cov ntaub ntawv tshawb fawb txog kev lag luam, kev ua lag luam tau kwv yees tias yuav loj hlob ntawm kev loj hlob txhua xyoo (CAGR) ntawm ib ncig ntawm 10% txij xyoo 2020 txog 2024.
Kev loj hlob ntawm kev lag luam yog tsav los ntawm ntau yam, suav nrog kev xav tau ntau ntxiv rau cov neeg siv khoom siv hluav taws xob thiab kev nthuav dav ntawm kev siv cov khoom siv hluav taws xob hauv kev lag luam xws li aerospace, tiv thaiv, tsheb, thiab cov cuab yeej siv khoom lag luam. qhov kev xav tau loj zuj zus rau kev sib txuas lus kho qhov muag thev naus laus zis kuj tseem muaj txiaj ntsig rau kev lag luam nthuav dav.