Effects of laser‐ablation target damage on particulate production investigated by laser scattering with deposited thin film and target analysis
dc.contributor.author | Spindler, H. L. | en_US |
dc.contributor.author | Gilgenbach, Ronald M. | en_US |
dc.contributor.author | Lash, J. S. | en_US |
dc.date.accessioned | 2010-05-06T21:41:42Z | |
dc.date.available | 2010-05-06T21:41:42Z | |
dc.date.issued | 1996-06-03 | en_US |
dc.identifier.citation | Spindler, H. L.; Gilgenbach, R. M.; Lash, J. S. (1996). "Effects of laser‐ablation target damage on particulate production investigated by laser scattering with deposited thin film and target analysis." Applied Physics Letters 68(23): 3245-3247. <http://hdl.handle.net/2027.42/70140> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/70140 | |
dc.description.abstract | Experiments have been carried out to correlate ablated particulate density and size to the number of KrF excimer laser (248 nm, 40 ns, <1.2 J) pulses incident on a single location of a pure solid aluminum target and to relate particulate production to target surface damage. An analysis of laser ablation deposited aluminum films on silicon substrates was used to determine the density of ablated particulate greater than 0.5 μm in diameter. For an undamaged target, the laser deposited particulate density was on the order of 8.6×105 cm−2 per 1000 shots. A damaged target (following 1000 laser pulses) produced a density on the order of 1.6×106 cm−2 per 1000 shots on the substrate. Dye laser optical scattering was also used to measure, in real time, the velocity of the particulate and the relative particulate density in the laser‐ablation plume versus target damage. Results indicated a rapid rise in the production of particulate as target damage was increased up to 3000 laser pulses; after this number of shots the density of particulate in the laser ablation plume saturated. A peak in the scattered light for each stage of target damage occurred 40 μs after the initial KrF laser pulse, translating to a velocity of about 100 m/s for the smaller particulate (<1 μm diameter). The later scattered signal, around 160 μs, was apparently due to the larger particulate (5–15 μm), traveling at a velocity of approximately 25 m/s. Particulate production is related to the formation of laser ablation‐induced cones on the damaged targets. © 1996 American Institute of Physics. | en_US |
dc.format.extent | 3102 bytes | |
dc.format.extent | 367061 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | The American Institute of Physics | en_US |
dc.rights | © The American Institute of Physics | en_US |
dc.title | Effects of laser‐ablation target damage on particulate production investigated by laser scattering with deposited thin film and target analysis | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Intense Energy Beam Interaction Laboratory, Nuclear Engineering and Radiological Sciences Department, The University of Michigan, Ann Arbor, Michigan 48109‐2104 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/70140/2/APPLAB-68-23-3245-1.pdf | |
dc.identifier.doi | 10.1063/1.116562 | en_US |
dc.identifier.source | Applied Physics Letters | en_US |
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dc.owningcollname | Physics, Department of |
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