Ion characteristics of laser-produced plasma using a pair of collinear femtosecond laser pulses
dc.contributor.author | Zhang, Z. | en_US |
dc.contributor.author | Van Rompay, P. A. | en_US |
dc.contributor.author | Pronko, P. P. | en_US |
dc.date.accessioned | 2010-05-06T22:46:19Z | |
dc.date.available | 2010-05-06T22:46:19Z | |
dc.date.issued | 2003-07-21 | en_US |
dc.identifier.citation | Zhang, Z.; Van Rompay, P. A.; Pronko, P. P. (2003). "Ion characteristics of laser-produced plasma using a pair of collinear femtosecond laser pulses." Applied Physics Letters 83(3): 431-433. <http://hdl.handle.net/2027.42/70825> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/70825 | |
dc.description.abstract | Femtosecond laser-pulse absorption is studied in silicon ablation plasmas by means of a pair of identical 1016 W/cm21016W/cm2 collinear pulses separated on a picosecond time scale. The second laser-pulse modifies ionic characteristics of the preformed plasma, such as ion yield, ion energy, and average charge state. Resonance absorption is demonstrated to be the dominant mechanism by comparing results of ss and pp polarization. It is shown that maximum effects occur when a well defined critical density surface of the initial plasma forms together with an optimum density gradient scale length of kL = 1.5.kL=1.5. The optimal enhancement of ion yield, which occurs at 5 ps delay, is a factor of 2 greater than that produced by a single pulse with twice the energy of each individual double pulse. Applications are identified in regard to cluster beam formation and plasma isotope enrichment in ultrafast ablation plumes. © 2003 American Institute of Physics. | en_US |
dc.format.extent | 3102 bytes | |
dc.format.extent | 59617 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 | Ion characteristics of laser-produced plasma using a pair of collinear femtosecond laser pulses | 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 | Center for Ultrafast Optical Science and Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2099 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/70825/2/APPLAB-83-3-431-1.pdf | |
dc.identifier.doi | 10.1063/1.1592616 | en_US |
dc.identifier.source | Applied Physics Letters | en_US |
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dc.owningcollname | Physics, Department of |
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