Quantum and semiclassical dynamics of differential optical collisions |
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| Authors: | F Rebentrost S Klose J Grosser |
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| Institution: | Max-Planck-Institut für Quantenoptik, 85740 Garching, Germany, DE
Institut für Atom- und Molekülphysik, Universit?t Hannover, 30167 Hannover, Germany, DE
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| Abstract: | We apply quantum and semiclassical theories to differential optical collisions Na(32S1/2) + Kr +
Na(32P1/2,3/2) + Kr. Our results provide a basis to analyze recent experiments in which for the first time optical collisions were investigated
with angular resolution under crossed-beam conditions. A characteristic feature of the differential cross sections is the
pronounced oscillatory structure due to interferences of different Condon paths. These Stueckelberg oscillations form an extremely
sensitive probe of the collisional dynamics and of the molecular interactions. We demonstrate perspectives to determine geometric
properties of the collision complex by excitation with polarized light. By final state analysis nonadiabatic (spin-orbit,
rotational) interactions can be studied with complete control of the path. In summary it is shown that the method of differential
detection of optical collisions opens a variety of new accesses to atomic and molecular subcollisions.
Received: 30 July 1997 / Received in final form: 5 November 1997 / Accepted: 8 January 1998 |
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| Keywords: | PACS 32 70 -n Intensities and shapes of atomic spectral lines - 34 20 Cf Interatomic potentials and forces - 34 50 Rk Laser modified scattering and reactions |
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