Applications of Lasers in Atomic Collision Physics

R. Cabrera‐Trujillo, J. Jiménez-Mier, A. M.

H. J. Beyer, Karl Blum, R. Hippler +1 more

1 Electron Scattering from Heavy Atoms.- 2 Spin Polarization in Electron-Atom Scattering.- 3 Electron Scattering from Chiral Molecules.- 4 Applications of Lasers in Atomic Collision Physics.- 5 Excitation and Ionization in Atomic Collisions.- 6 Inner-shell Vacancy Creation: Perturbative Approximations and Beyond.- 7 Excitation in Ion-Atom Collisions.- 8 Coherence in Grazing Ion-Surface Collisions.- 9 The Two-Photon Decay of Atomic Hydrogen and Tests of Bell's Inequality.

Paul D. Lett

Research into collisions at ultracold temperatures has revealed new physics and created new spectroscopic techniques. A brief review of ultracold collisions in general and an overview of photoassociation experiments with laser‐cooled Na atoms are given here. These experiments point out some of the interesting and unique features of ultracold collisions and some of the possibilities for their application in high resolution spectroscopy and the manipulation of atomic collisions.

A Correspondent

Marek Trippenbach, Bo Gao, J. Cooper +1 more

The resonance fluorescence from a system of interacting, identical, and cold (trapped) atoms driven by a laser field is derived. The effects of dressing by the laser field and radiative decay are all included. We examine in detail the applicability of the binary-collision approximation for this problem, which is a special case of resonance broadening. The final result allows a clear physical interpretation and shows interesting features due to the resonant exchange of coherences and excitations. Correspondence with previous work is also discussed.

Carl Wieman, Leo W. Hollberg