ROTATIONAL ANALYSIS OF THE $A^{2}\Pi - X^{2}\Sigma^{+}$ AND $B^{2}\Sigma^{+} - X^{2}\Sigma^{+}$ TRANSITIONS OF YbBr USING LASER EXCITATION AND RESOLVED FLUORESCENCE

Dickinson, Cameron S.; Coxon, John A.; Linton, C.

ROTATIONAL ANALYSIS OF THE $A^{2}\Pi - X^{2}\Sigma^{+}$ AND $B^{2}\Sigma^{+} - X^{2}\Sigma^{+}$ TRANSITIONS OF YbBr USING LASER EXCITATION AND RESOLVED FLUORESCENCE

Files

2001-FC-11.jpg (362.69 KB)

Date

2001

Authors

Dickinson, Cameron S.

Coxon, John A.

Linton, C.

Publisher

Ohio State University

Abstract

High-resolution laser excitation spectra have been recorded for the first time for YbBr. Data for the 0-0 and 1-0 bands of the $A 2 Π − X 2 Σ +$ system and the 0-0, 1-0 and 1-1 bands of the $B 2 Σ + − X 2 Σ +$ system were obtained using selective detection of fluorescence. The lowest vibrational levels of the $A 2 Π 3 / 2$ and $B 2 Σ +$ states are shown to be separated by $≈400 c m −1$ , and exhibit the characteristics of a mutually perturbing pair. Through observation of symmetry forbidden transitions in the $B 2 Σ + − X 2 Σ +$ system, mixing of the A and B states is apparent. A resolved fluorescence study has also been undertaken by observing the 0-1, 0-2 and 0-3 bands in the $A 2 Π 1 / 2 − X 2 Σ +$ system. A least-squares merged fit of the estimated parameters from individual bands was performed to remove redundancies, the results of which will be presented.

Description

Author Institution: Dalhousie University; Department of Chemistry, Dalhousie University; Department of Chemistry, University of New Brunswick

URI

http://hdl.handle.net/1811/20015

Collections

Abstracts of OSU International Symposium on Molecular Spectroscopy 2000-2009

Full item page

Knowledge Bank