Abstract
RbXe bands are observed using pulsed dye laser excitation of atomic alkali transitions in Rb/Xe mixtures containing 193 and 465 Torr xenon. Bands observed in absorption (A) or emission (E) at 427.0 nm (E), 497.8 nm (A), 501.8 nm (A, E), 509.0 nm (A, E), 520.0 nm (A, E) and 535.0 nm (E) are assigned to molecular potentials associated with the 62P1/2 atomic rubidium states for the first, 62S1/2 for the next two and 42D3/2,5/2 for the remaining three. The time evolution of the emission bands depends on the population mechanism of the parent atomic state which involves superradiant transitions from the pumped excited state. Monitoring of the corresponding infrared emission allows a control over the population mechanisms and an evaluation of the lifetimes, collisional quenching and reaction rates of the excimer and parent states. This in turn allows a determination of the atomic parent states of the bands observed.
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