VUV spectroscopy of magnetically trapped atomic hydrogen

Evaporative cooling of magnetically trapped atomic molybdenum

Spectroscopy of atomic hydrogen How is the Rydberg constant determined ?

This article presents a review of the most recent theoretical and experimental results in hydrogen. We particularly emphasize the methods used to deduce the Rydberg constant R∞ and we consider the prospects for future improvements in the precision of R∞.

VUV and cathodoluminescence spectroscopy of 12CaO 7Al2O3

Reflection, photoand cathodoluminescence of 12CaO 7Al2O3 (C12A7) were investigated. Smooth features observed in VUV reflection spectrum of monocrystalline C12A7 evidence its complicated crystalline structure and lattice disorder. Two luminescence bands peaking at 4.9 and 3.35 eV were revealed in C12A7 ceramics having encaged electrons and O ions. The 4.9 eV emission has an excitation onset at 6...

Trapped Atomic Fermi Gases

A many-body system of fermion atoms with a model interaction characterized by the scattering length a is considered. We treat both a and the density as parameters assuming that the system can be created artificially in a trap. If a is negative the system becomes strongly correlated at densities ρ ∼ |a| −3 , provided the scattering length is the dominant parameter of the problem. It means that w...

Photoemission spectroscopy with fs-VUV radiation

Recently, lateral resolution of photoemission spectroscopy has been rapidly improving by several types of energy-filtered electron emission microscopes (PEEM) or by focused light sources.1–6) On the other hand, laser-based photoemission spectroscopy facilitates femtosecond time-resolution, revealing the dynamics of electrons and atoms on surfaces.7–11) The combination of lateral and temporal re...