Enhancement of molecular modes by electronically resonant multipulse excitation: Further progress towards mode selective chemistry

Jürgen Hauer, Tiago Buckup, Marcus Motzkus

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39 Scopus citations

Abstract

We show that molecular vibrations induced by resonant excitation pulses can be enhanced by pulse trains, compared to Fourier-limited pulses of equal pulse energy. As a proof-of-principle, a low frequency mode of Nile Blue at 600 cm-1 is observed and amplified in a pump and probe experiment. In addition to previous experiments in our group, an increased population transfer to the excited electronic state is identified as an important element of the underlying physical mechanism. These results suggest an enhancement on the level of individual molecules rather than a macroscopic effect.

Original languageEnglish
Article number061101
JournalJournal of Chemical Physics
Volume125
Issue number6
DOIs
StatePublished - 2006
Externally publishedYes

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