-
Dab tsi yog lub laser cryogenic
"Lub laser cryogenic" yog dab tsi? Qhov tseeb, nws yog lub laser uas xav tau kev ua haujlwm kub qis hauv qhov nruab nrab nce. Lub tswv yim ntawm cov lasers ua haujlwm ntawm qhov kub qis tsis yog qhov tshiab: lub laser thib ob hauv keeb kwm yog cryogenic. Thaum xub thawj, lub tswv yim nyuaj rau ua tiav kev ua haujlwm kub hauv chav, thiab ...Nyeem Ntxiv -
Kev ua haujlwm ntawm quantum ntawm photodetector tawg qhov kev txwv theoretical
Raws li lub koom haum physicists network nyuam qhuav tshaj tawm tias cov kws tshawb fawb Finnish tau tsim lub tshuab photodetector dub silicon nrog lub zog quantum sab nraud ntawm 130%, uas yog thawj zaug uas qhov ua tau zoo ntawm cov khoom siv photovoltaic tshaj qhov kev txwv theoretical ntawm 100%, uas yog ...Nyeem Ntxiv -
Cov txiaj ntsig tshawb fawb tshiab tshaj plaws ntawm cov organic photodetectors
Cov kws tshawb nrhiav tau tsim thiab ua qauv qhia txog lub teeb ntsuab tshiab uas nqus tau cov duab organic pob tshab uas muaj kev nkag siab zoo thiab sib xws nrog CMOS cov txheej txheem tsim khoom. Kev koom ua ke cov duab tshiab no rau hauv cov duab sensors silicone hybrid yuav pab tau rau ntau daim ntawv thov. Cov no...Nyeem Ntxiv -
Kev loj hlob ntawm lub sensor infrared zoo heev
Txhua yam khoom uas muaj qhov kub siab tshaj xoom kiag li yuav tso tawm lub zog mus rau hauv qhov chaw sab nraud hauv daim ntawv ntawm lub teeb infrared. Cov thev naus laus zis sensing uas siv hluav taws xob infrared los ntsuas cov khoom siv lub cev hu ua infrared sensing technology. Cov thev naus laus zis sensor infrared yog ib qho ntawm cov khoom siv ceev tshaj plaws ...Nyeem Ntxiv -
Lub hauv paus ntsiab lus ntawm laser thiab nws daim ntawv thov
Laser yog hais txog cov txheej txheem thiab cov cuab yeej ntawm kev tsim cov teeb ci sib xyaw, monochromatic, sib xws los ntawm kev ua kom muaj zog ntawm cov hluav taws xob thiab cov lus teb tsim nyog. Yeej, kev tsim laser xav tau peb yam: "resonator," "gain medium," thiab "pu...Nyeem Ntxiv -
Dab tsi yog integrated optics?
Lub tswv yim ntawm kev sib xyaw ua ke optics tau muab tso rau pem hauv ntej los ntawm Dr. Miller ntawm Bell Laboratories hauv xyoo 1969. Kev sib xyaw ua ke optics yog ib qho kev kawm tshiab uas kawm thiab tsim cov khoom siv kho qhov muag thiab cov khoom siv hluav taws xob sib xyaw ua ke siv cov txheej txheem sib xyaw ua ke ntawm lub hauv paus ntawm optoelectronics thiab microelectronics. Th...Nyeem Ntxiv -
Lub hauv paus ntsiab lus ntawm laser txias thiab nws daim ntawv thov rau cov atoms txias
Lub hauv paus ntsiab lus ntawm laser txias thiab nws daim ntawv thov rau cov atoms txias Hauv cov atom txias physics, ntau txoj haujlwm sim yuav tsum tau tswj cov khoom me me (kaw cov ionic atoms, xws li cov moos atomic), qeeb lawv, thiab txhim kho qhov tseeb ntawm kev ntsuas. Nrog rau kev txhim kho ntawm cov thev naus laus zis laser, laser coo...Nyeem Ntxiv -
Kev Taw Qhia rau cov photodetectors
Lub photodetector yog ib lub cuab yeej uas hloov cov teeb liab teeb liab mus ua cov teeb liab hluav taws xob. Hauv lub semiconductor photodetector, lub photo-generated carrier uas excited los ntawm qhov teeb meem photon nkag mus rau hauv lub voj voog sab nraud raws li qhov siv bias voltage thiab tsim ib qho photocurrent ntsuas tau. Txawm tias nyob rau ntawm qhov siab tshaj plaws respons ...Nyeem Ntxiv -
Dab tsi yog lub laser ceev ceev
A. Lub tswv yim ntawm ultrafast lasers Ultrafast lasers feem ntau yog hais txog mode-locked lasers siv los tso tawm ultra-short pulses, piv txwv li, pulses ntawm femtosecond lossis picosecond ntev. Lub npe tseeb dua yuav yog ultrashort pulse laser. Ultrashort pulse lasers yuav luag mode-locked lasers, tab sis cov ...Nyeem Ntxiv -
Lub tswv yim thiab kev faib tawm ntawm nanolasers
Nanolaser yog ib hom khoom siv micro thiab nano uas ua los ntawm cov khoom siv nano xws li nanowire ua lub resonator thiab tuaj yeem tso tawm laser hauv qab photoexcitation lossis hluav taws xob excitation. Qhov loj ntawm lub laser no feem ntau tsuas yog pua pua microns lossis txawm tias kaum ntawm microns, thiab txoj kab uas hla yog txog li nanometer ...Nyeem Ntxiv -
Kev ntsuas qhov tawg ntawm laser
Laser-Induced Breakdown Spectroscopy (LIBS), tseem hu ua Laser-Induced Plasma Spectroscopy (LIPS), yog ib txoj kev kuaj pom spectral ceev. Los ntawm kev tsom lub laser pulse nrog lub zog ceev ceev rau ntawm qhov chaw ntawm lub hom phiaj ntawm cov qauv kuaj, cov plasma yog tsim los ntawm ablation excitation, thiab ...Nyeem Ntxiv -
Lub modulator teeb pom kev zoo yog dab tsi?
Lub teeb pom kev zoo ntawm qhov chaw txhais tau tias nyob rau hauv kev tswj hwm nquag, nws tuaj yeem hloov kho qee qhov kev teeb tsa ntawm lub teeb pom kev zoo los ntawm cov kua siv lead ua kua, xws li hloov kho qhov loj ntawm lub teeb pom kev zoo, hloov kho theem los ntawm cov ntsuas refractive, hloov kho lub xeev polarization los ntawm kev tig ntawm ...Nyeem Ntxiv
