Efficient non-resonant intermolecular vibrational energy transfer

• Verfasst von: Cederbaum, Lorenz S. [VerfasserIn]
• Titel: Efficient non-resonant intermolecular vibrational energy transfer
• Verf.angabe: Lorenz S. Cederbaum
• E-Jahr: 2018
• Jahr: 18 May 2018
• Umfang: 6 S.
• Fussnoten: Gesehen am 03.04.2019
• Titel Quelle: Enthalten in: Molecular physics
• Ort Quelle: London : Taylor & Francis, 1958
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018), Seite 1-6
• ISSN Quelle: 1362-3028
• DOI: doi:10.1080/00268976.2018.1473654
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: interacting resonances
• Sach-SW: non-resonant energy transfer
• Sach-SW: Vibrational energy transfer
• K10plus-PPN: 1662741073

Abstract

Molecular excited vibrational states are metastable states and we incorporate their finite lifetimes into the theory of vibrational energy transfer between weakly interacting molecules, i.e., at internuclear distances at which they do not have a chemical bond. Expressions for the effective lifetime of an initially vibrationally excited molecule in the presence of a neighbouring molecule are derived in closed form. These expressions allow one to analyse the physics behind the energy transfer. It is shown that due to different finite lifetimes of the isolated excited molecules, a very efficient vibrational energy transfer can take place between them even if their energies are rather off-resonance. Examples are discussed.