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Spectral shift of autoionizing high-n Rydberg states of CH3I in dense argon: a photoionization study

✍ Scribed by J. Meyer; R. Reininger; U. Asaf


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
220 KB
Volume
173
Category
Article
ISSN
0009-2614

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✦ Synopsis


Photoionization spectra of pure CHII and of CH,I doped into varying densities of Ar (up to 10.5 x 10" cm-') are reported. The photoionization spectrum of pure CHJ closely reproduces the absorption spectrum of the autoionizing nd' and ns' Rydberg states converging to the 'E,,* ionization limit. Moreover, it displays the members of the nd' series terminating on the u' = 1 vibrational level of the same limit. The Rydberg states shift to lower energies with increasing argon density. The shift rate for principal quantum numbers n> 10 is in good agreement with the values obtained from absorption studies.