OPTICAL-RADIO FREQUENCY DOUBLE RESONANCE ON $A {^{1}}II$ CS.
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Date
1969
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
A CS molecular resonance lamp was used to optically pump the $v = 0$ vibrational level of the CS $A{^{1}}II$ state. Dipole moments and lambda doublings have been obtained for rotational levels $J = 3$ through 9 by Stark Effect-radio frequency resonance experiments. Resonance is detected by monitoring undispersed fluorescence to the $X {^{1}}\Sigma^{+}$ state. In conjunction with optical data$^{1}$ the measured lambda doublings were used to refine interaction matrix elements for the perturbation of $A^{1}II (v=0)$ by $a^{1}{^{3}}\Sigma^{+}$. These matrix elements in turn enable one to separate the very small $a{^{13}}\Sigma^{+}$ contribution from the measured dipole moments. A least squares fit to the individual moments measured with 0.3% precision yields $\mu_{11} = 0.65(3), \mu_{\Sigma} = 1.7 (12)$ Debye.
Description
$^{1}$ Barrow, R. F. et al., Ark. Fys, 18, 343 (1960).
Author Institution: Department of Chemistry, Harvard University
Author Institution: Department of Chemistry, Harvard University