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Proceedings Paper

Potential energy barriers observed in CdNe and CdAr van der Waals complexes excited to the first E1(3E+ Rydberg state
Author(s): J. Koperski; M. Czajkowski
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Paper Abstract

The lowest E1(3E+) Rydberg state of the CdNe and CdAr van der Waals complex has been investigated by an optical-optical double resonance. Two A0+(53P1) electronic states have been used as intermediates for probing the final E1(63S1) state. We have measured the bound-bound laser excitation spectra of the E1"A0+ transition which correspond to the first observation of the bound CdNe/CdAr complexes in the E1 state. By means of Birge-Sponer linear plot of the vN-progression we estimated the spectroscopical parameters of the potential well of the Cd(63S1)!Ne(21S0)/Ar(31S0) interaction. On the other hand, in the excitation spectrum of the E1"B1 transition we observed the characteristic nodal structure of the bound-free absorption, which can be elucidated by the Franck-Condon projection of vibrational wave-function of the B1 state onto the "hump" of the E1-state potential as it was predicted in ab initio calculation of Czuchaj and Stoll. Assuming a Morse function as an adequate approximation of the inner E1-potential well we simulated the observed bound-bound spectra and hence, we obtained additional information regarding the location of the potential well minimum (Re). Simple energy considerations made also possible an evaluation of the height of potential barrier predicted theoretically in the potential energy curve of the E1 state.

Paper Details

Date Published: 17 November 2003
PDF: 7 pages
Proc. SPIE 5258, IV Workshop on Atomic and Molecular Physics, (17 November 2003); doi: 10.1117/12.544324
Show Author Affiliations
J. Koperski, Univ. Jagiellonski (Poland)
M. Czajkowski, Univ. of Windsor (Canada)

Published in SPIE Proceedings Vol. 5258:
IV Workshop on Atomic and Molecular Physics
Jozef Heldt, Editor(s)

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