Laser npav yog siv cov laser kab teeb rau ntau yam ntawm cov yeeb yam sib txawv ntawm lub npoo ntawm cov cim ruaj khov.
Cov nyhuv ntawm qhov cim yog qhia txog kev sib sib zog nqus los ntawm qhov evaporation ntawm qhov teeb meem ntawm qhov dej, los yog ua rau cov kev hloov ntawm cov khoom xuab zeb vim yog lub teeb pom kev zoo thiab "hlawv" tawm mus, los yog mus hlawv ib feem ntawm cov khoom siv los ntawm lub teeb zog tus qauv thiab cov ntawv nyeem uas yuav tsum tau ua rau etched.
