Laser yog dab tsi
Laser yog lub teeb amplified los ntawm absorbing radiant zog.Laser hluav taws xob yog tsim los ntawm lub laser qhov chaw, thiab high-density zog excites siv lead ua rods (solid-state lasers) los yog tshwj xeeb roj sib tov. (gas lasers) los tsim hluav taws xob laser.Lub zog no yog muab rau hauv daim ntawv ntawm lub teeb (flash teeb lossis diode laser) lossis hluav taws xob tawm (sib npaug rau lub teeb fluorescent).Crystal qws los yog laser-activated gas yog nyob nruab nrab ntawm ob daim iav los tsim ib lub laser resonant kab noj hniav los coj lub laser mus rau ib qho kev taw qhia tshwj xeeb thiab nthuav cov teeb liab kho qhov muag hauv txoj kev no.Lub laser hla los ntawm daim iav pob tshab hauv ib qho kev faib ua feem thiab yog siv rau kev ua cov khoom siv.Cov ntsiab cai ntawm Laser Processing
Txhua lub lasers muaj peb yam nram qab no: Pump source Stimulated nruab nrab Resonant kab noj hniav Lub twj tso kua mis muab lub zog los ntawm ib qho chaw sab nraud rau lub laser.Qhov nruab nrab zoo siab yog nyob rau hauv lub laser.Nyob ntawm tus qauv tsim ntawm cov qauv laser, lub laser nruab nrab yuav yog cov roj sib xyaw (CO2 laser), siv lead ua pas nrig (YAG khoom laser) lossis iav fiber ntau. (fiber laser).Thaum lub laser nruab nrab tau muab lub zog los ntawm lub twj tso kua mis sab nraud, nws zoo siab los tsim hluav taws xob hluav taws xob.Qhov zoo siab nruab nrab yog nyob rau hauv nruab nrab ntawm ob daim iav ntawm ob qho kawg ntawm lub resonant kab noj hniav.Ib daim iav yog ib lub lens ib nrab (ib nrab daim iav).Lub zog hluav taws xob generated los ntawm lub zoo siab nruab nrab yog amplified nyob rau hauv lub resonant kab noj hniav.Nyob rau tib lub sijhawm, tsuas muaj ib qho tshwj xeeb Cov hluav taws xob tuaj yeem dhau los ntawm ib txoj kev lo ntsiab muag los tsim ib lub teeb hluav taws xob, uas yog laser.
Laser muaj peb yam tseem ceeb:Uniformity: laser hluav taws xob muaj tsuas yog ib qho tshwj xeeb wavelength ntawm lub teeb Coherence: tib theem Parallelism: Lub teeb nyob rau hauv lub laser beam yog heev parallel Lub laser lub teeb yog heev thaum uas tig mus ua ntej dhau los ntawm lub tsom lens.Nyob rau hauv lub focal ntev ntawm lub laser beam, tsis tshua muaj zog siv zog yog generated, uas yuav siv tau los yaj los yog evaporate cov ntaub ntawv.Tsis tas li ntawd, kev siv cov khoom siv kho qhov muag tsim nyog (lens) tuaj yeem coj thiab cuam tshuam lub teeb laser, thiab yuav tsis muaj kev poob txawm tias nyob deb.Qhov chaw tso qhov system (laser pointer) lossis galvanometer scanner yog siv los ua lub xov tooj ntawm tes.Txij li thaum lub laser beam yuav tsis passivated, qhov no yog ib tug universal, hnav-dawb lub cuab tam. Post lub sij hawm: Jun-15-2021