In this work we report on a study of the plasmas produced in laser ablation of copper targets by XeF (lambda = 351 nm) excimer laser irradiation. The kinetic energy of positive ions was measured by energy resolved time of flight mass spectrometry. Average kinetic energies of the Cu(+) ions of the order of 1-30 eV were observed, as a function of the laser pulse fluence. The experimental kinetic energy distributions show a double-peak structure. The first located at very low kinetic energy (similar to 1 eV) can be related to a thermoionic component, whereas the second is strongly dependent on laser fluence. (C) 1998 Elsevier Science B.V.
Kinetic energy distribution of ions in the laser ablation of copper targets / Amoruso, Salvatore; V., Berardi; Bruzzese, Riccardo; Spinelli, Nicola; X. W. a. n., G.. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - STAMPA. - 127:(1998), pp. 953-958. [10.1016/S0169-4332(97)00772-1]
Kinetic energy distribution of ions in the laser ablation of copper targets
AMORUSO, SALVATORE;BRUZZESE, RICCARDO;SPINELLI, NICOLA;
1998
Abstract
In this work we report on a study of the plasmas produced in laser ablation of copper targets by XeF (lambda = 351 nm) excimer laser irradiation. The kinetic energy of positive ions was measured by energy resolved time of flight mass spectrometry. Average kinetic energies of the Cu(+) ions of the order of 1-30 eV were observed, as a function of the laser pulse fluence. The experimental kinetic energy distributions show a double-peak structure. The first located at very low kinetic energy (similar to 1 eV) can be related to a thermoionic component, whereas the second is strongly dependent on laser fluence. (C) 1998 Elsevier Science B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
