20.500.12556/DKUM-65244 The action of a laser on an aluminium target Obsevanje aluminijaste tarče z laserjem A nitrogen laser beam (337 nm, 6 ns (FWHM), (3.2 [plus minus] 0.2) mJ) was focused with a quartz lens (f = 100 mm) onto an aluminium target in air at normal pressure. The laser irradiation and plasma explosion caused a modification to the Al surface and the deposition of a thin film (droplets) onto a glassy carbon plate. The irradiated target and the deposited material were studied with a scanning electron microscope (SEM) and a focused-ion-beam (FIB) device. A crater surrounded by a rim was produced on the spot of maximum irradiation on the aluminium target. The crater, very deep in comparison to its width and thickness, was presumably caused by the Kelvin-Helmholtz and the Rayleigh-Taylor instabilities. The temperatures of the electron and the massive particles were explained. Žarek laserske svetlobe (337 nm, 6 ns ((FWHM), (3.2 [plus minus] 0.2) mJ) smo s kremenovo lečo (f = 100 mm) fokusirali na aluminijevo tarčo, ki je bila na zraku pri normalnem zračnem tlaku. Obsevanje z laserjem in eksplozija plazme sta povzročila spremembo površine aluminija ter nanos tanke plasti in kapljic na steklasto ogljikovo ploščico. Obsevano tarčo in nanesen material smo raziskali z vrstičnim elektronskim mikroskopom (SEM) in s fokusiranim ionskim curkom (FIB). Na aluminijevi tarči je na najbolj obsevanem mestu nastal krater, ki je bil zelo globok v primerjavi z njegovo širino in debelino. Krater je bil povzročen zaradi Kelvin-Helmholtzove in Rayleigh-Taylorjeve nestabilnosti. V delu smo razložili tudi temperaturo elektronov in temperaturo masivnih delcev. aluminium laser ablation thin film deposition instabilities temperatures aluminij laserska ablacija nanašanje tanke plasti nestabilnosti temperatura true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-03-23 15:41:10 2017-03-23 15:42:32 2022-07-07 03:08:53 2019-07-11 15:12:09 2008 0 0 str. 111-115 št. 3 Letn. 42 2008 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1580-2949 669.71:620.1/.2 106193664 678058 1580-2949 URN:SI:UM:DK:Z07NVOA0 Materiali_in_Tehnologije_2008_Henc-Bartolic_et_al._The_action_of_a_laser_on_an_aluminium_target.pdf Materiali_in_Tehnologije_2008_Henc-Bartolic_et_al._The_action_of_a_laser_on_an_aluminium_target.pdf 1 9FFD6FD4705DC382E0CEE9542FBD3806 432a4531ef48d4788e9b4fa67c8494f084d1e180ed0baa9eea0c0ff13f8d1c08 03569db2-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=110095 http://mit.imt.si/Revija/izvodi/mit083/henc-bartolic.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=110094 Fakulteta za strojništvo 0 0 0