Ultrafast disruptive probing: Simultaneously keeping track of tens of reaction pathways

Author:

Jochim Bethany1ORCID,DeJesus Lindsey1ORCID,Dantus Marcos12ORCID

Affiliation:

1. Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA

2. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA

Abstract

Ultrafast science depends on different implementations of the well-known pump–probe method. Here, we provide a formal description of ultrafast disruptive probing, a method in which the probe pulse disrupts a transient species that may be a metastable ion or a transient state of matter. Disruptive probing has the advantage of allowing for simultaneous tracking of the yield of tens of different processes. Our presentation includes a numerical model and experimental data on multiple products resulting from the strong-field ionization of two different molecules, partially deuterated methanol and norbornene. The correlated enhancement and depletion signals between all the different fragmentation channels offer comprehensive information on photochemical reaction pathways. In combination with ion imaging and/or coincidence momentum imaging or as complementary to atom-specific probing or ultrafast diffraction methods, disruptive probing is a particularly powerful tool for the study of strong-field laser–matter interactions.

Funder

U.S. Department of Energy

Publisher

AIP Publishing

Subject

Instrumentation

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