Penning and associative ionization in crossed-beam Na/Na collisions assisted by strong resonant laser fields
- 1 January 1981
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 74 (1) , 508-511
- https://doi.org/10.1063/1.440858
Abstract
We observe the production of Na2+ and Na+ arising from single collisions between crossed beams of sodium atoms when a laser field is tuned near the Na(3p 2P3/2) and Na(3p 2P1/2) transitions. Measurements of ion intensity vs laser intensity show that at moderately high power true laser-induced processes dominate over purely collisional effects. Relative intensity of mass-selected ions produced at either member of the Na resonance doublet shows conclusively that Na+ does not arise simply from photodissociation of Na2+ but must result from a direct, laser-induced collisional ionization.Keywords
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