On the deconvolution of the temporal width of laser pulses from pump-probe signals

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Abstract

We consider pump-probe frequency integrated fluorescence signals. These transients, in general, arise from wave packets where the intrinsic dynamics and the response to the pump pulse is entangled in a complicated way. The signal from an infinitely short delta-pump pulse is the only exception. However, if the pump-probe signal is integrated over the frequencies of the pump laser, the signal can be expressed as a convolution of the pulse envelope with the signal obtained from a delta-pulse excitation. We consider the deconvolution of the pulse envelope and demonstrate that the signal corresponding to a delta-pump pulse can be recovered exactly from signals using pump pulses of finite temporal width. Numerical examples are presented for asymptotic fragment detection in the reaction, ICN --> I+CN. (C) 1999 American Institute of Physics.
Original languageEnglish
JournalJournal of Chemical Physics
Volume111
Issue number23
Pages (from-to)10469-10475
ISSN0021-9606
DOIs
Publication statusPublished - 1999

Bibliographical note

Copyright (1999) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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