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Anne L'Huillier

Anne l'Huillier

Professor

Anne L'Huillier

Pump-probe lifetime measurements on singlet ungerade states in molecular nitrogen

Author

  • JP Sprengers
  • Allan Johansson
  • Anne L'Huillier
  • Claes-Göran Wahlström
  • BR Lewis
  • W Ubachs

Summary, in English

Excited-state lifetimes for a number of vibronic states of (1)Pi(u) symmetry in molecular nitrogen have been determined experimentally in a laser-based pump-probe scheme using a coherent and tunable extreme ultraviolet source based on harmonic generation. States investigated in N-14(2) were b(1)Pi(u)(v = 6-9), of valence character, and c(3)(1)Pi(u)(v = 1) and o(3)(1)Pi(u)(v = 1), of Rydberg character. In the case of b(1)Pi(u)(v = 7) and c(3)(1)Pi(u)(v = 1), rotationally dependent predissociation was observed. States studied in N-15(2) were b(1)Pi(u)(v = 5) and c(3)(1)Pi(u)(v = 1); in addition, lifetimes of the c(4)'Sigma(u)(+)(v = 0,1) and b'(1)Sigma(u)(+)(v = 1) states were determined. The lifetimes show a dependence on the vibrational quantum number and isotope. (C) 2004 Elsevier B.V. All rights reserved.

Department/s

  • Atomic Physics

Publishing year

2004

Language

English

Pages

348-351

Publication/Series

Chemical Physics Letters

Volume

389

Issue

4-6

Document type

Journal article

Publisher

Elsevier

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0009-2614