We report a time-resolved electron momentum spectroscopy (TREMS) study on the toluene molecule in its S1 excited state. The toluene S1 state was prepared by a 267-nm pump laser and probed with a train of 1.2-keV incident electron beam pulses, each having 1-ps temporal width. It is shown through comparisons with molecular calculations that TREMS has an inherent capability to observe spatial distributions, in momentum space, of not only the outermost orbital but also all other, more tightly bound orbitals of a molecular excited state.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics