Los ntawm kev kho lub wavelength, lub zog thiab mem tes dav ntawm lub laser hla ntawm daim tawv nqaij mus txog cov plaub hau hauv paus plaub hau, thiab lub tshav kub lub zog yog absorbed thiab decomposes cov plaub hau follicle cov ntaub so ntswg kom rov tsim cov plaub hau.Qhov ceev-freezing point cov plaub hau tshem tawm yog tsim rau kev tiv thaiv tub yees.Nws tuaj yeem ua rau kub txog -5 ° C, uas daws tau ntau yam teeb meem.Nyob rau tib lub sijhawm, nws yog lub tshuab muaj kev nyab xeeb, nrawm thiab siv tau ntev.Daim ntawv thov tshuab parameter Yuav luag txhua hom tawv nqaij tuaj yeem tshem tawm cov plaub hau kom zoo, nrog lub teeb pom kev loj, thiab qhov loj ntawm cov plaub hau tshem tawm tau zoo dua.