4.5 Article

Differences in Two-Photon and One-Photon Absorption Profiles Induced by Vibronic Coupling: The Case of Dioxaborine Heterocyclic Dye

Journal

CHEMPHYSCHEM
Volume 12, Issue 17, Pages 3392-3403

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201100500

Keywords

ab initio calculations; density functional calculations; laser spectroscopy; nonlinear optics; spectroscopic methods

Funding

  1. National Nature Science Foundation of China [21003085]
  2. Independent Innovation Foundation of Shandong University [2009HW002]
  3. Swedish Research Council (VR)
  4. Norwegian Supercomputing Program
  5. Research Council of Norway [179568, 191251]
  6. network Village
  7. Italian IIT

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A theoretical study of a dioxaborine heterocyclic compound in solution provides a case study for an analysis of the effects induced by the so-called HerzbergTeller (HT) vibronic coupling on the one- (OPA) and two-photon absorption (TPA) spectra. For TPA, the HT vibronic coupling induces differences in the shapes of the absorption band. The study highlights the importance of vibronic coupling as a potentially important mechanism in absorption spectroscopy, able to explain differences in the OPA/TPA spectra.

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