Chaos and dynamics on 0.5-300-ps time scales in vibrationally excited acetylene: Fourier transform of stimulated-emission pumping spectrum

A recently proposed technique based on the Fourier transform of the spectrum is applied to the stimulated-emission pumping spectrum of acetylene at ~26 500 cm-1 above the vibrational ground state. Correlations on two different time scales (~3 and ~45 ps) were found from analysis of low-resolution (0...

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Bibliographic Details
Published in:Physical review letters 1987-02, Vol.58 (5), p.475-478
Main Authors: PIQUE, J. P, CHEN, Y, FIELD, R. W, KINSEY, J. L
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Multiple resonances (including double and higher-order resonance processes, such as double nuclear magnetic resonance, electron double resonance and microwave optical double resonance)
Optics
Physics
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Summary:A recently proposed technique based on the Fourier transform of the spectrum is applied to the stimulated-emission pumping spectrum of acetylene at ~26 500 cm-1 above the vibrational ground state. Correlations on two different time scales (~3 and ~45 ps) were found from analysis of low-resolution (0.3 cm-1) and high-resolution (0.05 cm-1) spectra, respectively. Additional structure produced dynamic information on a wider (0.5-300 ps) time scale. The results show that acetylene at 26 500 cm-1 is in the transition from the regular to the chaotic regime.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.58.475