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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F04%3APU45694%21RIV11-MSM-26210___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Fluorescence measurements have been used to characterize the velocity of atoms in a femtosecond-laser-produced plasma. Nanogram amounts of a copper sample were ablated by the focused radiation (lambda = 775 nm) of an all-solid-state laser. The laser was operated at a pulse rate of 10 Hz with an energy of 200 muJ per pulse. The microplasma expanded into a defined argon atmosphere of pressures between 0.02 and 850 mbar. Atomic fluorescence was excited in the laser plume by a dye-laser pulse with the wavelength set to the line Cu I 282.4 nm. The narrowed beam of the dye-laser was directed into the plasma at different heights above the sample surface. The fluorescence radiation was raeasured with an echelle-spectrometer, equipped with an intensified-charge-coupled device as the detector. The velocity depends strongly on the pressure of the ambient atmosphere and the distance from the sample surface. The highest velocity found at an argon pressure of 0.02 mbar was 1.0 X 10(6) cm s(-1). Fluorescence measurements have been used to characterize the velocity of atoms in a femtosecond-laser-produced plasma. Nanogram amounts of a copper sample were ablated by the focused radiation (lambda = 775 nm) of an all-solid-state laser. The laser was operated at a pulse rate of 10 Hz with an energy of 200 muJ per pulse. The microplasma expanded into a defined argon atmosphere of pressures between 0.02 and 850 mbar. Atomic fluorescence was excited in the laser plume by a dye-laser pulse with the wavelength set to the line Cu I 282.4 nm. The narrowed beam of the dye-laser was directed into the plasma at different heights above the sample surface. The fluorescence radiation was raeasured with an echelle-spectrometer, equipped with an intensified-charge-coupled device as the detector. The velocity depends strongly on the pressure of the ambient atmosphere and the distance from the sample surface. The highest velocity found at an argon pressure of 0.02 mbar was 1.0 X 10(6) cm s(-1).
dcterms:title
Shock-wave velocity of a femtosecond-laser-produced plasma Shock-wave velocity of a femtosecond-laser-produced plasma
skos:prefLabel
Shock-wave velocity of a femtosecond-laser-produced plasma Shock-wave velocity of a femtosecond-laser-produced plasma
skos:notation
RIV/00216305:26210/04:PU45694!RIV11-MSM-26210___
n3:aktivita
n5:V n5:Z
n3:aktivity
V, Z(MSM 262100002)
n3:cisloPeriodika
4
n3:dodaniDat
n6:2011
n3:domaciTvurceVysledku
n17:7619456
n3:druhVysledku
n14:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
586101
n3:idVysledku
RIV/00216305:26210/04:PU45694
n3:jazykVysledku
n13:eng
n3:klicovaSlova
atomic fluorescence, femtosecond laser, laser-induced plasma
n3:klicoveSlovo
n7:atomic%20fluorescence n7:laser-induced%20plasma n7:femtosecond%20laser
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[39AC45CC5CFD]
n3:nazevZdroje
Czechoslovak Journal of Physics
n3:obor
n12:BL
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n6:2004
n3:svazekPeriodika
54
n3:tvurceVysledku
Samek, Ota
n3:zamer
n11:MSM%20262100002
s:issn
0011-4626
s:numberOfPages
6
n10:organizacniJednotka
26210