The large electric dipole moments associated with highly excited Rydberg states of atoms
and molecules make gas-phase samples in these states very well suited to deceleration and …

Recent advances in the understanding of the factors which determine line intensities in zero
kinetic energy photoelectron spectroscopy (ZEKE-PES) are reviewed. The relative …

This volume presents a complete and thorough examination of advances in the
instrumentation, evaluation, and implementation of UV technology for reliable and efficient …

Hydrogen molecules are excited in a molecular beam to Rydberg states around n= 17–18
and are exposed to the inhomogeneous electric field of an electric dipole. The large dipole …

Tunable radiation sources in the vacuum ultraviolet VUV and extreme ultraviolet XUV
represent a fundamental tool to study molecular photoionization, photodissociation, and …

Molecules in high Rydberg states, in which one electron has been excited into a hydrogenic
orbital of large mean radius, have many unusual properties compared to ground state …

Translationally cold H2 molecules excited to non-penetrating| MJ|= 3 Rydberg states of
principal quantum number in the range 21–37 have been decelerated and trapped using …

Precision measurements of transitions between singlet (S= 0) Rydberg states of H 2
belonging to series converging on the X+ 2 Σ g+(v+= 0, N+= 0) state of H 2+ have been …

Nitric oxide (NO) molecules travelling in pulsed supersonic beams have been prepared in
long-lived Rydberg–Stark states by resonance-enhanced two-colour two-photon excitation …

An explanation is offered for the propensity for large negative changes of rotational angular
momentum in ZEKE photoelectron spectra, which is increasingly observed as the rotational …