Direct observation of Young's double-slit interferences in vibrationally resolved photoionization of diatomic molecules
Vibrationally resolved valence-shell photoionization spectra of Hâ, Nâ and CO have been measured in the photon energy range 20-300 eV using third-generation synchrotron radiation. Young's double-slit interferences lead to oscillations in the corresponding vibrational ratios, showing that th...
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| Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 2011-05, Vol.108 (18), p.7302-7306 |
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| container_title | Proceedings of the National Academy of Sciences - PNAS |
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| creator | Canton, Sophie E Plésiat, Etienne Bozek, John D Rude, Bruce S Decleva, Piero MartÃn, Fernando |
| description | Vibrationally resolved valence-shell photoionization spectra of Hâ, Nâ and CO have been measured in the photon energy range 20-300 eV using third-generation synchrotron radiation. Young's double-slit interferences lead to oscillations in the corresponding vibrational ratios, showing that the molecules behave as two-center electron-wave emitters and that the associated interferences leave their trace in the angle-integrated photoionization cross section. In contrast to previous work, the oscillations are directly observable in the experiment, thereby removing any possible ambiguity related to the introduction of external parameters or fitting functions. A straightforward extension of an original idea proposed by Cohen and Fano [Cohen HD, Fano U (1966) Phys Rev 150:30] confirms this interpretation and shows that it is also valid for diatomic heteronuclear molecules. Results of accurate theoretical calculations are in excellent agreement with the experimental findings. |
| doi_str_mv | 10.1073/pnas.1018534108 |
| format | Article |
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Young's double-slit interferences lead to oscillations in the corresponding vibrational ratios, showing that the molecules behave as two-center electron-wave emitters and that the associated interferences leave their trace in the angle-integrated photoionization cross section. In contrast to previous work, the oscillations are directly observable in the experiment, thereby removing any possible ambiguity related to the introduction of external parameters or fitting functions. A straightforward extension of an original idea proposed by Cohen and Fano [Cohen HD, Fano U (1966) Phys Rev 150:30] confirms this interpretation and shows that it is also valid for diatomic heteronuclear molecules. Results of accurate theoretical calculations are in excellent agreement with the experimental findings.</description><identifier>ISSN: 0027-8424</identifier><identifier>ISSN: 1091-6490</identifier><identifier>EISSN: 1091-6490</identifier><identifier>DOI: 10.1073/pnas.1018534108</identifier><language>eng</language><publisher>Washington: National Academy of Sciences</publisher><subject>Algae ; Approximation ; Diatomic molecules ; Electron emission ; Electrons ; energy ; Experiments ; Fysik ; hydrogen ; Ionization ; Lead ; Molecules ; Natural Sciences ; Naturvetenskap ; nitrogen ; Photoionization ; Photons ; Physical Sciences ; Wave functions</subject><ispartof>Proceedings of the National Academy of Sciences - PNAS, 2011-05, Vol.108 (18), p.7302-7306</ispartof><rights>Copyright © 1993-2008 National Academy of Sciences of the United States of America</rights><rights>Copyright National Academy of Sciences May 3, 2011</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c601t-6891d72c5b10b0429d28472e238286266754a3860076c736e7deba09c7ab952a3</citedby><cites>FETCH-LOGICAL-c601t-6891d72c5b10b0429d28472e238286266754a3860076c736e7deba09c7ab952a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.pnas.org/content/108/18.cover.gif</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/41242175$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/41242175$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,723,776,780,799,881,27901,27902,53766,53768,57992,58225</link.rule.ids><backlink>$$Uhttps://lup.lub.lu.se/record/1937022$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>Canton, Sophie E</creatorcontrib><creatorcontrib>Plésiat, Etienne</creatorcontrib><creatorcontrib>Bozek, John D</creatorcontrib><creatorcontrib>Rude, Bruce S</creatorcontrib><creatorcontrib>Decleva, Piero</creatorcontrib><creatorcontrib>MartÃn, Fernando</creatorcontrib><title>Direct observation of Young's double-slit interferences in vibrationally resolved photoionization of diatomic molecules</title><title>Proceedings of the National Academy of Sciences - PNAS</title><description>Vibrationally resolved valence-shell photoionization spectra of Hâ, Nâ and CO have been measured in the photon energy range 20-300 eV using third-generation synchrotron radiation. 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| subjects | Algae Approximation Diatomic molecules Electron emission Electrons energy Experiments Fysik hydrogen Ionization Lead Molecules Natural Sciences Naturvetenskap nitrogen Photoionization Photons Physical Sciences Wave functions |
| title | Direct observation of Young's double-slit interferences in vibrationally resolved photoionization of diatomic molecules |
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