Speaker Abstracts 13

AMO Instrument Update: Opportunities for New Science
Presenter Artem Rudenko
Presentation Type Session
Affiliations Kansas State University
Abstract Ultrafast Spectroscopy with Coincidence Methods

Intense femtosecond X-ray pulses available at the LCLS open up a variety of possibilities for the creation of a “molecular movie”, i.e., for obtaining a timed sequence of snapshots of evolving molecular structure. Whereas for rather large, nano-scale systems there is a realistic hope for direct coherent imaging with scattered X-rays, for small molecules different ways of creating frames of this movie are needed. Some of the promising techniques currently are time-resolved photoelectron diffraction, Coulomb explosion imaging and multi-parameter pump-probe spectroscopy. All of these techniques strongly benefit from, or even become possible because of coincident or correlated detection of two or more experimental observables.

In this talk a brief overview of coincident or correlated measurements performed at LCLS, and, in particular, their current and potential applications as a probe in time-resolved experiments will be presented. Examples employing ion-ion coincidence measurements, correlated ion-electron and ion-photon detection, as well as opportunities for single-short multi-parameter imaging will be discussed.

Footnotes  
Funding Acknowledgement