Photoelectron diffraction mapping: molecules illuminated from within.
We demonstrate the use of a multiparticle coincidence technique to image the diffraction of an electron wave whose source is placed at a specific site in a free molecule. Core-level photoelectrons are used to illuminate the molecule from within. By measuring the vector momenta of two molecular fragments and the photoelectron, a richly structured electron diffraction pattern is obtained in a body-fixed frame of the randomly oriented molecule in the gas phase. We illustrate this technique for CO, creating a photoelectron from the C(1s) shell and scanning its energy from zero to 30 eV.
Landers
A
A
Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008, USA. allen.landers@wmich.edu
Weber
T
T
Ali
I
I
Cassimi
A
A
Hattass
M
M
Jagutzki
O
O
Nauert
A
A
Osipov
T
T
Staudte
A
A
Prior
M H
MH
Schmidt-Böcking
H
H
Cocke
C L
CL
Dörner
R
R