"Kub ua" muaj lub siab ceev ntawm lub teeb meem ntawm lub laser (nws yog lub zog uas muaj zog txaus), irradiated rau ntawm cov khoom siv txheej txheem, cov khoom ntws absorbs lub zog laser thiab ua rau lub caij sov so rau hauv cheeb tsam irradiation, uas ua rau qhov kub ntawm cov khoom siv deg (los yog lo) kom sawv, ua rau tsis txawv txav, melting, ablation thiab evaporation phenomena.
"Txias ua" muaj lub zog siab (ultraviolet) photon, tuaj yeem cuam tshuam cov khoom (tshwj xeeb tshaj yog cov khoom siv organic) los yog cov tshuaj sib txuas hauv cov nruab nrab, ua rau cov khoom siv ua rau tsis thermal txoj kev puas tsuaj. Qhov no ua rau cov neeg ua haujlwm hauv lub laser marking muaj qhov tshwj xeeb tseem ceeb, vim hais tias nws tsis yog thermal ablation, tab sis tsis ua "thermal puas" ntawm cov teebmeem, cuam tshuam qhov mob khaub thuas txias ntawm cov tshuaj bonds, thiab yog li qhov chaw ntawm cov txheej txheem thiab nyob ib sab cov cheeb tsam tsis tsim cua sov los yog thermal deformation thiab li ntawd. Piv txwv li, cov tshuab hluav taws xob siv cov las las excavators kom tso cov tshuaj yeeb yaj kiab rau cov khoom siv thiab nqaim grooves rau ntawm cov hluav taws xob semicates.
