Laser-ablation-plume thermalization dynamics in background gases studied by time-resolved imaging, spectroscopic, and ion probe diagnostics

1995 ◽  
Author(s):  
David B. Geohegan ◽  
Alexander A. Puretzky
Keyword(s):  
Laser Ablation ◽  
Ablation Plume ◽  
Time Resolved ◽  
Probe Diagnostics ◽  
Ion Probe ◽  
Time Resolved Imaging

Time-resolved imaging of gas phase nanoparticle synthesis by laser ablation

1998 ◽  
Vol 72 (23) ◽  
pp. 2987-2989 ◽  
Author(s):  
David B. Geohegan ◽  
Alex A. Puretzky ◽  
Gerd Duscher ◽  
Stephen J. Pennycook
Keyword(s):  
Laser Ablation ◽  
Gas Phase ◽  
Nanoparticle Synthesis ◽  
Time Resolved ◽  
Time Resolved Imaging

scholarly journals Time resolved imaging studies of the plasma produced by laser ablation of silicon in O2/Ar atmosphere

2005 ◽  
Vol 23 (2) ◽  
pp. 149-153 ◽  
Author(s):  
S. TRUSSO ◽  
E. BARLETTA ◽  
F. BARRECA ◽  
E. FAZIO ◽  
F. NERI
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Gaseous Mixture ◽  
Pure Oxygen ◽  
Imaging Studies ◽  
Supersonic Expansion ◽  
Time Resolved ◽  
Excimer Laser Ablation ◽  
Silicon Target ◽  
Time Resolved Imaging

The dynamics of the expansion plasma produced by excimer laser ablation of a silicon target into oxygen and mixed O2/Ar atmosphere were studied by means of time-resolved imaging of the expanding plume. Experiments were performed in pure oxygen, ranging between 0.13 and 13.33 Pa, and at different O2/Ar ratios at a fixed total pressure of 13.33 Pa. The occurrence of a shock wave (SW) generated by the supersonic expansion of the plasma was observed at high pressure values. The presence of the SW had a strong influence on the structure of SiOx thin films. In fact, silicon dioxide thin films were always obtained in presence of the SW, irrespective of the oxygen content in the gaseous mixture. On the contrary, suboxide thin films were obtained when the expansion occurred at lower pressure values (no SW presence). The temperature rise following the developing of the SW, is supposed to enhance the oxygen molecules dissociation by increasing the efficiency of the silicon oxidation reaction.

scholarly journals Time-Resolved Imaging Study of Excimer Laser Ablation of Bone

1992 ◽  
Vol 13 (Supplement) ◽  
pp. 385-388
Author(s):  
Shinichi Fujisaka ◽  
Toshiaki Ito ◽  
Katsuhiko Sato
Keyword(s):  
Laser Ablation ◽  
Excimer Laser ◽  
Imaging Study ◽  
Time Resolved ◽  
Excimer Laser Ablation ◽  
Time Resolved Imaging
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