| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000403540 |
| ISSN: | 0103-9733 |
| Authors: | Luna, H1 Dardis, J2 Doria, D3 Costello, J.T2 |
| Institutions: | 1Ministerio da Ciencia e Tecnologia, Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro. Brasil 2Dublin City University, National Centre for Plasma Science and Technology, Dublín. Irlanda 3Queen's University of Belfast, Belfast, Antrim. Reino Unido |
| Year: | 2007 |
| Season: | Dic |
| Volumen: | 37 |
| Number: | 4 |
| Pages: | 1301-1305 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | Pulsed laser deposition (PLD) is extensively employed for the growth of thin films. The laser-material interaction involves complex processes of heating, melting, vaporization, ejection of atoms, ions and molecules, shock waves, plasma initiation, expansion and deposition onto a substrate. The understanding of the spatial and temporal distribution of a plasma parameters in a laser-produced plasma is important to the control of thin film growth process. In this work we have studied the dynamics of laser ablated graphitic carbon plasma expanding into vacuum using a spectroscopic imaging suitable as an in situ & automated diagnostic sampling technique for PLD. Time-resolved spectra, that were also spatially resolved in one dimension along the axis of plasma expansion, were obtained using a time-gated intensified charge-coupled device (ICCD) coupled to a stigmatic Czerny-Turner spectrograph. Plasma parameters such as electron density, temperature and plume velocity expansion were extracted directly from the analysis of the C II (2s23d-2s24f) transition |
| Disciplines: | Física y astronomía, Ingeniería |
| Keyword: | Física de materia condensada, Ingeniería de materiales, Depósito por láser pulsado, Plasma, Espectroscopía |
| Keyword: | Physics and astronomy, Engineering, Condensed matter physics, Materials engineering, Pulsed laser deposition, Plasma, Spectroscopy |
| Full text: | Texto completo (Ver PDF) |
