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Optical Transitions in Highly Excited States: RF LOG Spectrum of XeI

L. Klasinc ; Chemistry Department, Louisiana State University, Baton Rouge, La. 70803
D. Kumar ; Chemistry Department, Louisiana State University, Baton Rouge, La. 70803
P. L. Clancy ; Chemistry Department, Louisiana State University, Baton Rouge, La. 70803
S. P. McGlynn ; Chemistry Department, Louisiana State University, Baton Rouge, La. 70803

Sažetak

Pulsed laser optogalvanic spectroscopy of diluted gases in a
32MHz radio frequency discharge (RF LOG) was applied to xenon
in a pressure range from 0.01to several Torr. The optical transitions
caused by exciting the products of the discharge with laser energies from 14,000to 17,000cm? have been recorded and assigned. At low pressures, most transitions originate in the 5d states, whereas at higher pressures those from the 6p and 6s' states become dominant. Results indicate that (il) coupling and selection rules /),J. = O, ± 1 and /),K. = O, ± 1 provide the most appropriate description of the observed transitions to the lower n-states. However, some transitions with /),K. = ± 2 also possess considerable intensity for some higher angular momentum transitions (p-d, d-f). The low pressure spectra are dominated by the d-f transitions for which all series have been observed. An important feature of these series is that at high n values (n> 20) the oscillatory potential of the RF field starts to populate high angular momentum states and causes a substantial broadening of the transitions to these states. In addition, close to the ionization limit, field induced ionization can take place and, under certain conditions,
this may cause certain high series members to disappear. The
corresponding results are presented and discussed.

Ključne riječi

Hrčak ID:

177293

URI

https://hrcak.srce.hr/177293

Datum izdavanja:

25.7.1986.

Posjeta: 798 *