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Proceedings Paper

Vibrational coherence of DCI in cryogenic matrices: from van der Waals interaction to weak hydrogen bond
Author(s): Claudine Crepin-Gilbert; M. Broquier; A. Cuisset; Henri DuBost; Jean-Pierre Galaup; Pascale Roubin; Jean-Michel Ortega
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Paper Abstract

The influence of the environment on vibrational dynamics, and especially on the vibrational dephasing time, is investigated for a simple system : DCl in a van der Waals solid (N2 lattice). Photon echo experiments are performed using the infrared free electron laser CLIO. In solid nitrogen, decay times of the third order polarization are in the picosecond range. In the case of the isolated DCl monomers in van der Waals interaction with the host, the observed signals are interpreted in term of a rapid spectral diffusion. The two different stretching modes of DCl dimers, perturbed in a different way by the weak hydrogen bond, exhibit different coherence times, reflecting the influence of the interaction strength between the molecules.

Paper Details

Date Published: 1 November 2002
PDF: 9 pages
Proc. SPIE 4812, Nonlinear Spectroscopy, (1 November 2002); doi: 10.1117/12.455921
Show Author Affiliations
Claudine Crepin-Gilbert, Univ. Paris-Sud (France)
M. Broquier, Univ. Paris-Sud (France)
A. Cuisset, Univ. Paris-Sud (France)
Henri DuBost, Univ. Paris-Sud (France)
Jean-Pierre Galaup, Univ. Paris-Sud (France)
Pascale Roubin, Univ. de Provence (France)
Jean-Michel Ortega, Univ. Paris-Sud (France)

Published in SPIE Proceedings Vol. 4812:
Nonlinear Spectroscopy
David L. Andrews, Editor(s)

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