Time-dependent photoionization of azulene: Optically induced anisotropy on the femtosecond scale
| Autor: | Kevin Raffael, Béatrice Chatel, Giorgio Turri, Ivan Anton Garcia, Benjamin J. Whitaker, Bertrand Girard, Iain Wilkinson, Valérie Blanchet |
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| Přispěvatelé: | Femto (LCAR), Laboratoire Collisions Agrégats Réactivité (LCAR), Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (IRSAMC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), School of Chemistry [Leeds], University of Leeds, ANR-06-BLAN-0004,cocomouv,Shaped tunable ultraviolet femtosecond source: Application to coherent control in atoms and molecules.(2006), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3) |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
azulene
time-resolved photoelectron spectroscopy Dephasing femtochemistry Analytical chemistry General Physics and Astronomy FOS: Physical sciences Physics::Optics Photoionization 010402 general chemistry 01 natural sciences chemistry.chemical_compound Physics - Chemical Physics 0103 physical sciences Physical and Theoretical Chemistry Physics::Chemical Physics Spectroscopy Chemical Physics (physics.chem-ph) 010304 chemical physics Azulene 0104 chemical sciences 3. Good health chemistry Excited state Picosecond Femtosecond [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] Atomic physics Femtochemistry |
| Zdroj: | Chemical Physics Letters Chemical Physics Letters, Elsevier, 2008, 460 (1-3), pp.59-63. ⟨10.1016/j.cplett.2008.06.009⟩ |
| ISSN: | 0009-2614 |
| DOI: | 10.1016/j.cplett.2008.06.009⟩ |
| Popis: | We measure the photoionization cross-section of vibrationally excited levels in the S2 state of azulene by femtosecond pump-probe spectroscopy. At the wavelengths studied (349-265 nm in the pump) the transient signals exhibit two distinct and well-defined behaviours: (i) Short-term (on the order of a picosecond) polarization dependent transients and (ii) longer (10 ps - 1 ns) time-scale decays. This letter focuses on the short time transient. In contrast to an earlier study by Diau et al.22 [J. Chem. Phys. 110 (1999) 9785.] we unambiguously assign the fast initial decay signal to rotational dephasing of the initial alignment created by the pump transition. Comment: Chemical Physics Letters (2008) |
| Databáze: | OpenAIRE |
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