Chemie und Prozesstechnik
Filtern
Erscheinungsjahr
- 2020 (211) (entfernen)
Dokumenttyp
Referierte Publikation
- ja (211) (entfernen)
Schlagworte
- Nanoparticles (12)
- XPS (11)
- MALDI-TOF MS (8)
- Fluorescence (7)
- Mechanochemistry (7)
- Imaging (6)
- Mass spectrometry (6)
- Polylactide (6)
- ICP-MS (5)
- Magnetic resonance imaging (5)
Organisationseinheit der BAM
- 6 Materialchemie (91)
- 1 Analytische Chemie; Referenzmaterialien (77)
- 6.1 Oberflächen- und Dünnschichtanalyse (37)
- 6.3 Strukturanalytik (36)
- 8 Zerstörungsfreie Prüfung (34)
- 1.1 Anorganische Spurenanalytik (19)
- 1.9 Chemische und optische Sensorik (17)
- 8.0 Abteilungsleitung und andere (14)
- 6.6 Physik und chemische Analytik der Polymere (13)
- 1.2 Biophotonik (12)
Paper des Monats
- ja (7)
The dynamics of laser-induced plasma plume splitting is investigated using spatiotemporal plasma imaging and spectrometry in this paper. Plasma plume splitting into fast and slow components is clearly observed using plasma optical emission as time evolves. The spatial resolved plasma spectra are used to investigate the plasma species distribution, which reveals that the charged copper ions, which radiate at wavelength range 485 nm - 504 nm, are merely present in the fast component. In order to further interpret the mechanism, the pressure-dependent and laser energy-dependent plume splitting are analyzed. Based on the results, the charge separation field is proposed to explain this phenomenon. This work can be of importance for such areas as laser induced breakdown spectroscopy, laser-induced ion source formation, pulse laser deposition, film growth, and nanoscale synthesis.