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dc.contributor.authorHemantha Rao, Kavya
dc.contributor.authorNadarajan Achary, Smijesh
dc.contributor.authorNivas, Jijil JJ
dc.contributor.authorPhilip, Reji
dc.date.accessioned2019-03-11T02:17:06Z
dc.date.available2019-03-11T02:17:06Z
dc.date.issued2016
dc.identifier.issn1089-7674en_US
dc.identifier.doi10.1063/1.4945613en_US
dc.identifier.urihttp://hdl.handle.net/10072/142544
dc.description.abstractThe effect of ambient pressure on Stark broadening of emission lines from neutrals and ions in an ultrafast laser (100 fs, 800 nm) produced zinc plasma is investigated. Measured spectra reveal that the full width at half maximum (δλ) of neutral lines remains unchanged in the pressure range of 10−6 to 10−1 Torr, shows an even fluctuation in the pressure range of 0.1 to 100 Torr, and then increases with pressure. On the other hand, δλ of ion lines is nearly a constant from 10−6 to 10−3 Torr, and then increases consistently with ambient pressure. A line narrowing of neutral emissions observed in the region of 1 to 100 Torr can be attributed to larger plasma temperatures, whereas the consistent increase in δλ with pressure seen for ion emission results from the prevalence of additional broadening mechanisms related to Coulomb interactions, ion-ion interaction, and Debye shielding. An accurate knowledge of emission line width is crucial for unambiguously calculating number density values for any given ambient pressure. Moreover, it can be relevant for the design of narrow line width, bright plasma sources for various applications.en_US
dc.description.peerreviewedYesen_US
dc.languageEnglishen_US
dc.publisherA I P Publishing LLCen_US
dc.relation.ispartofpagefrom043503-1en_US
dc.relation.ispartofpageto043503-5en_US
dc.relation.ispartofissue4en_US
dc.relation.ispartofjournalPhysics of Plasmasen_US
dc.relation.ispartofvolume23en_US
dc.subject.fieldofresearchAtomic, Molecular, Nuclear, Particle and Plasma Physics not elsewhere classifieden_US
dc.subject.fieldofresearchcode020299en_US
dc.titleUltrafast laser produced zinc plasma: Stark broadening of emission lines in nitrogen ambienten_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, School of Natural Sciencesen_US
gro.hasfulltextNo Full Text
gro.griffith.authorHemantha Rao, Kavya
gro.griffith.authorNadarajan Achary, Smijesh


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