Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/6846
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sankar, Pranitha | - |
dc.contributor.author | Shashikala, H.D. | - |
dc.contributor.author | Philip, Reji | - |
dc.date.accessioned | 2018-03-06T11:49:43Z | - |
dc.date.available | 2018-03-06T11:49:43Z | - |
dc.date.issued | 2018-01 | - |
dc.identifier.citation | Applied Physics A : Materials Science and Processing, 2018, Vol.124, p26 | en_US |
dc.identifier.issn | 0947-8396 | - |
dc.identifier.issn | 1432-0630 (online) | - |
dc.identifier.uri | http://hdl.handle.net/2289/6846 | - |
dc.description | Restricted Access. | en_US |
dc.description.abstract | Plasma is generated by pulsed laser ablation of an Aluminium target using 1064 nm, 7 ns Nd:YAG laser pulses. The spatial and temporal evolution of the whole plasma plume, as well as that of the ionic (Al2+) component present in the plume, are investigated using spectrally resolved time-gated imaging. The influence of ambient gas pressure on the expansion dynamics of Al2+ is studied in particular. In vacuum (10−5 Torr, 10−2 Torr) the whole plume expands adiabatically and diffuses into the ambient. For higher pressures in the range of 1–10 Torr plume expansion is in accordance with the shock wave model, while at 760 Torr the expansion follows the drag model. On the other hand, the expansion dynamics of the Al2+ component, measured by introducing a band pass optical filter in the detection system, fits to the shock wave model for the entire pressure range of 10−2 Torr to 760 Torr. The expansion velocities of the whole plume and the Al2+ component have been measured in vacuum. These dynamics studies are of potential importance for applications such as laser-driven plasma accelerators, ion acceleration, pulsed laser deposition, micromachining, laser-assisted mass spectrometry, ion implantation, and light source generation. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Springer-Verlag | en_US |
dc.relation.uri | http://dx.doi.org/10.1007/s00339-017-1417-0 | en_US |
dc.rights | 2017 Springer Verlag Berlin Heidelberg | en_US |
dc.title | Ion dynamics of a laser produced aluminium plasma at different ambient pressures. | en_US |
dc.type | Article | en_US |
Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2018_AppPhyA_124_26.pdf Restricted Access | Restriced access | 1.18 MB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.