Share Email Print
cover

Proceedings Paper

Femtosecond spectroscopy on simple molecular systems: pump-probe and four-wave mixing techniques
Author(s): T. Chen; H. Dietz; V. Engel; M. Heid; Wolfgang Kiefer; G. Knopp; A. Materny; S. Meyer; R. Pausch; Michael Schmitt; H. Schwoerer; T. Siebert
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Different techniques are applied in order to obtain information about ultrafast molecular and reaction dynamics. Femtosecond time-resolved pump-probe spectroscopy is used to investigate the dissociation reaction of NAI molecules. Starting from free NaI molecules, the environment is changed to solution-like conditions adding rare gas with different pressures. Femtosecond time-resolved degenerate four-wave mixing (DFWM) spectroscopy is performed in order to investigate molecular dynamics in iodine molecules in the gas phase. Depending on the timing of the laser pulses different dynamics are reflected in the DFWM transient signal. By the use of time evolution diagrams, the varying contribution of ground and excited-state dynamics can be explained conclusively. Supersonic jet-cooled potassium dimers are investigated in their electronic ground state by a femtosecond pump-probe experiment. The ground state vibrational wave packets are created by a stimulated Raman pumping process and selectively interrogated by resonance enhanced three photon ionization.

Paper Details

Date Published: 28 January 1999
PDF: 12 pages
Proc. SPIE 3733, ICONO '98: Nonlinear Optical Phenomena and Coherent Optics in Information Technologies, (28 January 1999); doi: 10.1117/12.340043
Show Author Affiliations
T. Chen, Univ. Wuerzburg (Germany)
H. Dietz, Univ. Wuerzburg (Germany)
V. Engel, Univ. Wuerzburg (Germany)
M. Heid, Univ. Wuerzburg (Germany)
Wolfgang Kiefer, Univ. Wuerzburg (Germany)
G. Knopp, Univ. Wuerzburg (Germany)
A. Materny, Univ. Wuerzburg (Germany)
S. Meyer, Univ. Wuerzburg (Germany)
R. Pausch, Univ. Wuerzburg (Germany)
Michael Schmitt, Univ. Wuerzburg (Germany)
H. Schwoerer, Univ. Wuerzburg (Germany)
T. Siebert, Univ. Wuerzburg (Germany)


Published in SPIE Proceedings Vol. 3733:
ICONO '98: Nonlinear Optical Phenomena and Coherent Optics in Information Technologies
Sergei S. Chesnokov; Valerii P. Kandidov; Nikolai I. Koroteev, Editor(s)

© SPIE. Terms of Use
Back to Top