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J Chem Phys. 2007 Aug 7;127(5):054104.

Rapid motion capture of mode-specific quantum wave packets selectively generated by phase-controlled optical pulses.

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  • 1Department of Applied Physics, Tokyo University of A & T, 2-24-16 Naka-cho, Koganei 184-8588, Japan.

Erratum in

  • J Chem Phys. 2007 Oct 21;127(15):159901.


Rapid motion capture of phase-controlled wave packets was realized using a sensitive wave-packet spectrometer, which was previously developed by the present authors. Two-dimensional Fourier-transformed spectrograms obtained by the wave-packet spectrometer provide us full information about the wave-packet motion on both excited- and ground-state potential surfaces. Vibrational wave packet associated with a twisting mode in a DTTCI molecule was observed to be dependent on the pulse chirp, and was generated in the excited state preferably with negatively chirped excitation. The result indicates that the excited-state wave packet can be driven along a favorable configuration coordinate by using phase-controlled femtosecond pulses. The present method is essential to adaptive coherent-control application.

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