Tsis ntev los no, pawg tshawb fawb txog kev sib cuam tshuam ntawm laser ntawm lub koom haum ntawm Lub Zog Lasers thiab Daim Ntawv Thov (CELIA) ntawm University of Bordeaux hauv Fab Kis tshaj tawm tias lawv tau tsim lub iav microparticle tshiab siv lub femtosecond laser ua haujlwm hauv gigahertz (GHz) pulse xeev. Drilling txoj kev, uas muaj peev xwm tsim tsis-tapered, slender qhov nyob rau hauv iav nrog du sab hauv phab ntsa thiab tsis muaj tej kab nrib pleb nyob rau hauv lub khob.
Feem ntau, qhov drilling qhov hauv iav nrog tus qauv ib zaug femtosecond pulsed laser ua rau cov qhov sib sib zog nqus ntawm qhov ntev ntev thiab ntxhib sab hauv. Qhov tshiab laser-teeb meem kev sib cuam tshuam mechanism ua rau lub drilling ntawm high-aspect-ratio qhov ncaj qha nyob rau hauv ib kauj ruam yam tsis muaj tshuaj etching.
Kev xaiv ntawm laser pulse tsis yog qhov tseem ceeb heev kom tau txais cov khoom zoo microfabrication. Lub gigahertz (GHz) mem tes hom ntawm femtosecond lasers yuav ua rau txoj hauv kev rau cov ntawv thov tshiab xws li microelectronics, qhov twg silicon intermediates yuav raug hloov los ntawm iav intermediates.
Lub femtosecond laser kev khiav hauj lwm nyob rau hauv gigahertz pulses es tsis repetitive ib pulses enables cov kev sib raug zoo nrog iav ntaub ntawv los ua ke ob zoo: lub deposition ntawm laser zog nyob rau hauv cov ntaub ntawv yog muab faib nyob rau hauv ib tug ntev lub sij hawm ntawm lub sij hawm, ua rau kom muaj nuj nqis, tswj, thaum lub micromachining zoo heev. Qhov zoo ntawm femtosecond laser pulses yog khaws cia. Qhov tshwm sim saum toj-down percussion laum ua rau muaj qhov tsis muaj taper-dawb, slender, tawg-dawb qhov nrog ib tug du sab hauv phab ntsa.
