Radiatively assisted collisions of K Rydberg atoms

Journal Article · Tue Dec 31 23:00:00 EST 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.358· OSTI ID:7047633

Thomson, D S; Renn, M J; Gallagher, T F ^[1]

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1. Department of Physics, University of Virginia, Charlottesville, Virginia 22901 (United States)

We have observed radiatively assisted collisions between velocity-selected K Rydberg atoms in radio-frequency (rf) fields. The low relative velocity of the atoms leads to long collision times, or equivalently, narrow, 1-MHz, collisional resonances. We have carried out systematic measurements with rf fields in the strong-field regime, and have shown that the cross sections agree quantitatively with the predictions of the strong-field theory. We have also shown experimentally and theoretically that the sum over {ital m} of the cross sections for {ital m} photon-assisted cross sections is larger than the resonant-collision cross section in the absence of a rf field.

• OSTI ID: 7047633
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:1; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
COLLISIONS
DIPOLE MOMENTS
ELECTROMAGNETIC FIELDS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
METALS
POTASSIUM
RADIATIONS
RADIOWAVE RADIATION
RESONANCE
RYDBERG STATES
VELOCITY