Lub zog ntom ntom
Lub zog ntom ntom yog ib qho tseem ceeb tshaj plaws hauv kev ua laser. Nrog ib tug ntau dua hwj chim ceev, tus nto txheej yuav tau rhuab mus rau lub ib kub npau npau taw tes nyob rau hauv ib microsecond lub sij hawm ntau, ua rau ib tug loj npaum li cas ntawm vaporization. Yog li ntawd, lub zog muaj zog ceev tau txais txiaj ntsig zoo rau kev tshem tawm cov khoom, xws li xuas nrig ntaus, txiav, thiab kos duab. Txhawm rau lub zog qis dua, nws yuav siv ntau lub milliseconds rau qhov kub saum npoo kom mus txog qhov kub npau. Ua ntej txheej txheej saum npoo av, txheej txheej hauv qab mus txog qhov chaw yaj, uas ua rau nws yooj yim los tsim cov fusion weld zoo. Yog li ntawd, hauv kev siv hluav taws xob siv hluav taws xob txuas hluav taws xob, lub zog ntom ntom yog nyob ntawm thaj tsam ntawm 104 ~ 106W/cm2.
Lub plawv zoo
Pulse waveform yog qhov teeb meem tseem ceeb hauv kev siv vuam, tshwj xeeb tshaj yog rau cov ntawv vuam. Thaum lub teeb ci siab siv rau ntawm cov khoom siv, qee lub zog ntawm cov hlau saum npoo yuav raug cuam tshuam thiab ploj, thiab qhov cuam tshuam hloov pauv nrog qhov kub ntawm qhov chaw. Thaum lub sijhawm ua haujlwm mem tes, qhov cuam tshuam ntawm cov hlau hloov pauv ntau heev.
Pulse Dav
Pulse dav yog ib qho tseem ceeb ntawm kev siv lub plhaub vuam. Nws tsis yog tsuas yog qhov ntsuas tseem ceeb sib txawv ntawm cov khoom tshem tawm thiab cov khoom yaj, tab sis kuj yog qhov ntsuas tseem ceeb uas txiav txim siab tus nqi thiab ntim ntawm cov khoom siv ua.
Cov nyhuv ntawm defocus
Vim tias lub zog ntom ntom nyob hauv nruab nrab ntawm qhov chaw ntawm lub laser focal point siab dhau, nws yooj yim mus rau hauv lub qhov. Ntawm txhua lub dav hlau kom deb ntawm kev tsom mus rau lub laser, lub zog ntom ntom ntom yog qhov sib xws. Muaj ob txoj hauv kev defocusing: zoo defocus thiab tsis zoo defocus. Yog tias lub dav hlau focal siab dua qhov ua haujlwm, nws yog qhov ua haujlwm tsis zoo, txwv tsis pub nws yog qhov tsis zoo. Raws li geometric optics txoj kev xav, thaum qhov kev ncua deb ntawm lub dav hlau zoo thiab tsis zoo thiab lub dav hlau vuam sib npaug, lub zog sib zog ntawm lub dav hlau sib xws yog kwv yees zoo ib yam, tab sis qhov tseeb cov duab ntawm lub pas dej ua ke tau txais yog txawv. Thaum qhov defocus tsis zoo, muaj qhov nkag tob dua tuaj yeem tau txais, uas cuam tshuam nrog kev tsim cov txheej txheem ntawm cov pas dej ua ke.
