Fast radiative cooling of anthracene: Dependence on internal energy

S. Martin, M. Ji, J. Bernard, R. Brédy, B. Concina, A. R. Allouche, C. Joblin, C. Ortega, G. Montagne, A. Cassimi, Y. Ngono-Ravache, and L. Chen
Phys. Rev. A 92, 053425 – Published 25 November 2015

Abstract

Fast radiative cooling of anthracene cations (C14H10)+ is studied with a compact electrostatic storage device, the Mini-Ring. The time evolution of the internal energy distribution of the stored ions is probed in a time range from 3 to 7 ms using laser-induced dissociation with 3.49-eV photons. The population decay rate due to radiative emission is measured to vary from 25 to 450s1 as a function of the excitation energy in the range from 6 to 7.4 eV. After corrections of the infrared emission effect via vibrational transitions, the fluorescence emission rate due to electronic transitions from thermally excited electronic states is estimated and compared with a statistical molecular approach. In the considered internal energy range, the radiative cooling process is found to be dominated by the electronic transition, in good agreement with our previous work [S. Martin et al., Phys. Rev. Lett. 110, 063003 (2013)] focused on a narrower energy range.

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  • Received 17 July 2015

DOI:https://doi.org/10.1103/PhysRevA.92.053425

©2015 American Physical Society

Authors & Affiliations

S. Martin1, M. Ji1, J. Bernard1, R. Brédy1, B. Concina1, A. R. Allouche1, C. Joblin2,3, C. Ortega1, G. Montagne1, A. Cassimi4, Y. Ngono-Ravache4, and L. Chen1,*

  • 1Institut Lumière Matière, UMR5306, Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne Cedex, France
  • 2Université de Toulouse, UPS-OMP, IRAP, Toulouse, France
  • 3CNRS, IRAP, 9 Avenue Colonel Roche, BP 44346, F-31028 Toulouse Cedex 4, France
  • 4CIMAP, CEA/CNRS/ENSICAEN/Université Caen Normandie, Boulevard H. Becquerel, BP 5133, F-14070 Caen cedex 5, France

  • *chen@univ-lyon1.fr

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Vol. 92, Iss. 5 — November 2015

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