Angular distributions of fragment ions arising from tetrahedral CH3I and isomer identification using intense laser fields

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dc.contributor.authorGraham, P.en
dc.contributor.authorLedingham, K. W. D.en
dc.contributor.authorSinghal, R. P.en
dc.contributor.authorHankin, S. M.en
dc.contributor.authorMcCanny, T.en
dc.contributor.authorFang, X.en
dc.contributor.authorTaday, P. F.en
dc.contributor.authorLangley, A. J.en
dc.contributor.authorKosmidis, C.en
dc.date.accessioned2015-11-24T18:32:53Z
dc.date.available2015-11-24T18:32:53Z
dc.identifier.issn0263-0346-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/16646
dc.rightsDefault Licence-
dc.subjectfemtosecond durationen
dc.subjectionizationen
dc.subjectmoleculesen
dc.subjectalignmenten
dc.subjectpulsesen
dc.titleAngular distributions of fragment ions arising from tetrahedral CH3I and isomer identification using intense laser fieldsen
heal.abstractUtilizing an ultraintense (10(16) W cm(-2)) Is laser, the laser/matter interaction of the tetrahedral CH3I molecule is investigated. A mass spectrum and the angular distributions of fragment ions arising from Coulomb explosion of molecular ions, obtained with linearly polarized light, are presented. The distributions for In+ (n less than or equal to 7), CHm+ (m less than or equal to 3), Cp+ (p less than or equal to 4) and H+ ions are all anisotropic and maximal when the polarization lies along the spectrometer axis. The molecule hence seems to behave as a diatomic, with the fragment ions being ejected along the field direction. Also presented are mass spectra of the isomers 1- and 2-nitropropane, which are explosive species, taken for horizontal and vertical polarizations at both 375 and 750 nm. It is shown that femtosecond laser mass spectrometry (FLMS) can be used to distinguish between these two isomers through their differing dissociation patterns. Isomer identification is important for many different applications and FLMS may provide a means of achieving this for a wide range of molecules.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.secondary<Go to ISI>://000172230100003-
heal.identifier.secondaryhttp://journals.cambridge.org/download.php?file=%2FLPB%2FLPB19_02%2FS0263034601192037a.pdf&code=c27a6c9887b1e5415e74d9e8bd98cb77-
heal.journalNameLaser and Particle Beamsen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2001-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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