Pab Pawg Dawb electron Laser ntawm Suav Academy ntawm Kev Tshawb Fawb tau ua tiav hauv kev tshawb fawb ntawm kev sib koom ua ke dawb electron lasers.Raws li Shanghai Soft X-ray Free Electron Laser Facility, cov txheej txheem tshiab ntawm echo harmonic cascade dawb electron laser thov los ntawm Tuam Tshoj tau ua tiav kev txheeb xyuas, thiab cov hluav taws xob xoo hluav taws xob zoo sib xws nrog kev ua haujlwm zoo heev tau txais.Tsis ntev los no, Cov txiaj ntsig tau luam tawm hauv Optica raws li lub npe Coherent thiab ultra-luv mos X-ray pulses los ntawm ncha-enabled harmonic cascade dawb electron lasers.
X-ray dawb electron laser yog ib qho ntawm cov teeb pom kev zoo tshaj plaws hauv ntiaj teb.Tam sim no, feem ntau ntawm thoob ntiaj teb X-ray dawb electron lasers yog raws li tus kheej-amplifying spontaneous emission mechanism (SASE), SASE muaj lub siab ncov siab heev thiab femto qib ultra-luv mem tes dav thiab lwm yam kev ua tau zoo, tab sis SASE kev co. los ntawm lub suab nrov, lub coherence thiab stability ntawm nws cov hluav taws xob mem tes tsis siab, tsis yog X-ray band "laser".Ib qho ntawm cov lus qhia tseem ceeb tshaj plaws hauv kev lag luam thoob ntiaj teb dawb electron laser yog tsim kom muaj kev sib raug zoo X-ray hluav taws xob nrog cov qauv laser zoo, thiab txoj hauv kev tseem ceeb yog siv cov noob tsis muaj hluav taws xob hluav taws xob sab nraud laser kev ua haujlwm.Cov hluav taws xob sab nraud ntawm cov noob tsis pub dawb electron laser inherits cov yam ntxwv ntawm cov noob laser, thiab muaj cov yam ntxwv zoo xws li kev sib koom ua ke tag nrho, kev tswj theem thiab kev sib txuam nrog cov twj tso kua mis sab nraud.Txawm li cas los xij, vim qhov kev txwv ntawm lub wavelength thiab mem tes dav ntawm cov noob laser, qhov luv wavelength kev pab them nqi thiab mem tes ntev hloov ntau yam ntawm cov noob tsis pub dawb electron laser yog txwv.Txhawm rau txuas ntxiv nthuav dav qhov luv luv ntawm cov txheej txheem sab nraud ntawm cov noob dawb electron laser, cov qauv dawb electron laser ua haujlwm tshiab xws li ncha harmonic tiam tau tsim muaj zog hauv ntiaj teb xyoo tas los no.
Sab nraud noob dawb electron laser yog ib txoj hauv kev tseem ceeb los txhim kho kev nce qib siab dawb electron laser hauv Suav teb.Tam sim no, tag nrho plaub qhov kev nce qib siab dawb electron laser li hauv Suav teb tau siv cov noob ua haujlwm sab nraud.Raws li Shanghai Deep Ultraviolet Free electron Laser Facility thiab Shanghai Soft X-ray Free Electron Laser Facility, cov kws tshawb fawb tau ua tiav thawj zaug thoob ntiaj teb echo hom dawb electron laser teeb amplification thiab thawj huab ultraviolet echo yam dawb electron laser saturation amplification.Txhawm rau ntxiv dag zog rau cov noob tsis muaj hluav taws xob sab nraud rau lub wavelength luv luv, pab pawg tshawb fawb ntawm nws tus kheej tau tshaj tawm cov txheej txheem tshiab ntawm kev sib koom ua ke dawb electron laser nrog echo harmonic cascade, uas tau txais los ntawm Shanghai Soft X-ray Free electron Laser ntaus ntawv raws li cov txheej txheem yooj yim, thiab ua tiav tag nrho cov txheej txheem los ntawm kev txheeb xyuas lub hauv paus ntsiab lus mus rau lub teeb amplification nyob rau hauv cov mos X-ray band.Cov txiaj ntsig kev tshawb fawb pom tau hais tias piv nrog cov kab lis kev cai sab nraud hom kev khiav haujlwm, cov txheej txheem no muaj cov yam ntxwv zoo heev, los ntawm kev coj los ntawm cov kws tshawb fawb ntawm kev ywj pheej ntawm ultrafast X-ray pulse diagnosis technology (https://doi.org/10.1016 /j.fmre.2022.01.027), Qhov kev ua tau zoo tshaj ntawm cov txheej txheem tshiab no hauv kev tswj cov mem tes ntev thiab ultrafast pulse tiam yog txheeb xyuas ntxiv.Cov txiaj ntsig kev tshawb fawb cuam tshuam muab txoj hauv kev ua tau zoo rau kev tsim cov khoom siv hluav taws xob tsis muaj hluav taws xob nyob hauv subnanometer band, thiab yuav muab cov cuab yeej tshawb fawb zoo tshaj plaws rau thaj chaw ntawm X-ray nonlinear optics thiab ultrafast lub cev chemistry.
Lub echo harmonic cascade dawb electron laser muaj kev ua tau zoo spectral: sab laug duab yog cov pa cascade hom, thiab cov duab sab xis yog ncha harmonic cascade hom
X-ray pulse ntev hloov thiab ultrafast mem tes tiam tuaj yeem pom tau los ntawm ncha harmonic cascade
Post lub sij hawm: Oct-08-2023