corner
corner

Phys. Rev. A 60, 1363–1370 (1999)

Classical dynamics of multiphoton excitation and dissociation of diatomic molecules by infrared laser pulses

Download: PDF (138 kB) Buy this article Export: BibTeX or EndNote (RIS)

W.-K. Liu
Department of Physics, Guelph-Waterloo Program for Graduate Work in Physics 〈G/W〉, University of Waterloo, Ontario, Canada N2L 3G1

J.-M. Yuan
Department of Physics and Atmospheric Science, Drexel University, Philadelphia, Pennsylvania 19104

S. H. Lin
Institute of Atomic and Molecular Sciences, Academic Sinica, P.O. Box 32106, Taipei, Taiwan, Republic of China

Received 3 November 1998; published in the issue dated August 1999

The dynamics of the vibrational excitation and dissociation of a diatomic molecule by infrared laser pulses is studied classically. The system is modeled by a Morse oscillator interacting with a classical electric field. A chirped infrared laser pulse with realistic pulse shape and time-dependent frequency is very efficient to pump the molecule to highly excited states. The addition of a second fixed-frequency laser pulse is found to drastically enhance the dissociation probabilities.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.60.1363
DOI:
10.1103/PhysRevA.60.1363
PACS:
33.80.Rv, 31.70.Hq