Two-dimensional vibronic spectroscopy of molecular predissociation

Please always quote using this URN: urn:nbn:de:bvb:20-opus-96199
  • We calculate two-dimensional (2D) spectra reflecting the time-dependent electronic predissociation of a diatomic molecule. The laser-excited electronic state is coupled non-adiabatically to a fragment channel, leading to the decay of the prepared quasi-bound states. This decay can be monitored by the three-pulse configuration employed in optical 2D spectroscopy. It is shown that in this way it is possible to state-selectively characterize the time-dependent population of resonance states with different lifetimes. A model of the NaI moleculeWe calculate two-dimensional (2D) spectra reflecting the time-dependent electronic predissociation of a diatomic molecule. The laser-excited electronic state is coupled non-adiabatically to a fragment channel, leading to the decay of the prepared quasi-bound states. This decay can be monitored by the three-pulse configuration employed in optical 2D spectroscopy. It is shown that in this way it is possible to state-selectively characterize the time-dependent population of resonance states with different lifetimes. A model of the NaI molecule serves as a numerical example.show moreshow less

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Metadaten
Author: Volker Engel, Julian Albert, Alexander Schubert
URN:urn:nbn:de:bvb:20-opus-96199
Document Type:Journal article
Faculties:Fakultät für Chemie und Pharmazie / Institut für Physikalische und Theoretische Chemie
Language:English
Parent Title (English):New Journal of Physics
Year of Completion:2013
Source:In: New Journal of Physics (2013) 15: 2, doi:10.1088/1367-2630/15/2/025008
DOI:https://doi.org/10.1088/1367-2630/15/2/025008
Sonstige beteiligte Institutionen:Röntgen Research Center for Complex Material Systems, Hubland Campus Nord, Emil-Fischer-Straße 42, D-97074 Würzburg, Germany
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Tag:atomic physics; computational physics; molecular physics
PACS-Classification:30.00.00 ATOMIC AND MOLECULAR PHYSICS / 31.00.00 Electronic structure of atoms and molecules: theory / 31.15.-p Calculations and mathematical techniques in atomic and molecular physics (see also 02.70.-c Computational techniques, in mathematical methods in physics) / 31.15.X- Alternative approaches / 31.15.xv Molecular dynamics and other numerical methods (for simulation techniques for biomolecules, see 87.15.ak, ap)
30.00.00 ATOMIC AND MOLECULAR PHYSICS / 31.00.00 Electronic structure of atoms and molecules: theory / 31.50.-x Potential energy surfaces (for potential energy surfaces for chemical reactions, see 82.20.Kh; for collisions, see 34.20.-b) / 31.50.Df Potential energy surfaces for excited electronic states
30.00.00 ATOMIC AND MOLECULAR PHYSICS / 33.00.00 Molecular properties and interactions with photons / 33.20.-t Molecular spectra (see also 78.47.J- Ultrafast pump/probe spectroscopy in condensed matter and 82.53.Kp Coherent spectroscopy of atoms and molecules; for chemical analytical methods using spectroscopy, see 82.80.Dx, Gk, Ha in physical chemistry; 87.64.-t / 33.20.Wr Vibronic, rovibronic, and rotation-electron-spin interactions
30.00.00 ATOMIC AND MOLECULAR PHYSICS / 33.00.00 Molecular properties and interactions with photons / 33.70.-w Intensities and shapes of molecular spectral lines and bands / 33.70.Ca Oscillator and band strengths, lifetimes, transition moments, and Franck-Condon factors
30.00.00 ATOMIC AND MOLECULAR PHYSICS / 33.00.00 Molecular properties and interactions with photons / 33.80.-b Photon interactions with molecules (see also 42.50.-p Quantum optics) / 33.80.Gj Diffuse spectra; predissociation, photodissociation; Slowing, cooling, and trapping of molecules, see 37.10.Mn and 37.10.Pq
Release Date:2014/04/23
Collections:Open-Access-Publikationsfonds / Förderzeitraum 2013
Licence (German):License LogoCC BY-NC-SA: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell, Weitergabe unter gleichen Bedingungen