Laser ablation of copper followed by an accelerating potential: a TOF analysis

Juliana B. Matos; Rudimar Riva; Nicolau A. S. Rodrigues

doi:10.1117/12.2010560

30 January 2013 Laser ablation of copper followed by an accelerating potential: a TOF analysis

Juliana B. Matos, Rudimar Riva, Nicolau A. S. Rodrigues

Proceedings Volume 8677, XIX International Symposium on High-Power Laser Systems and Applications 2012; 86770S (2013) https://doi.org/10.1117/12.2010560
Event: XIX International Symposium on High-Power Laser Systems and Applications, 2012, Istanbul, Turkey

Abstract

It was performed a Time of Flight (TOF) study for the plume produced by laser ablation of cooper by 355 nm, 23 ns duration laser pulses, in vacuum. The plume sensor was made of a piezoelectric PVDF film associated with a pair of electrodes. By varying the electrodes polarization we evaluated the fraction of neutral atoms, which ranged from 8 to 30 % of the plume. By adjusting a TOF function to the PVDF electric signal we obtained the center of mass velocity and the translational temperature. It was observed that product v_CM × T_z remains constant with the electrodes potential and that the accelerating potential to which the plume is submitted has practical limits.

Citation Download Citation

Juliana B. Matos, Rudimar Riva, and Nicolau A. S. Rodrigues "Laser ablation of copper followed by an accelerating potential: a TOF analysis", Proc. SPIE 8677, XIX International Symposium on High-Power Laser Systems and Applications 2012, 86770S (30 January 2013); https://doi.org/10.1117/12.2010560

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