Using the Phase of Light as a Photochemical Tool

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DOIResolve DOI: http://doi.org/10.1021/jp003910b
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TypeArticle
Journal titleThe Journal of Physical Chemistry A
ISSN1089-5639
Volume105
Issue18
Pages43874394; # of pages: 8
AbstractIt is shown both theoretically and experimentally that the phase of a transition dipole matrix element may be determined from the interference between competing quantum mechanical paths. Specifically, we consider simultaneous m- and n-photon excitation of a molecule to a degenerate continuum state, leading to multiple reaction products. Variation of the relative phase of the electromagnetic fields produces a modulation of the product signals in the various channels. A relation between the phase lag between a pair of product signals and properties of the continuum is established. Information is revealed about coupling mechanisms, the properties of weak spectroscopic transitions, and the phases of quasi-bound wave functions.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
Identifier16891788
NPARC number12328464
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Record identifier13ccb69f-99a4-43db-880b-41d06b4f33ad
Record created2009-09-10
Record modified2017-03-23
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