# PULSED OPTICAL-OPTICAL DOUBLE RESONANCE OF THE GERADE EXCITED STATES OF $Li_{2}{^{*}}$

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/11466

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 Title: PULSED OPTICAL-OPTICAL DOUBLE RESONANCE OF THE GERADE EXCITED STATES OF $Li_{2}{^{*}}$ Creators: Bernheim, R. A.; Gold, L. P.; Kelly, P. B.; Tipton, T.; Tomczyk, C. A.; Veirs, D. K. Issue Date: 1980 Abstract: Pulsed optical-optical double resonance using two tunable dye lasers pumped by a nitrogen laser was used to examine highly excited gerade singlet states in $Li_{2}$. The experimental arrangement has been previously $reported.^{1}$ Rotational relaxation in the $A^{1}\Sigma_{u}{^{+}}$ state allows many rotational levels to be probed with one pump line. Five new electronic states were observed. The $F^{1}\Sigma_{g}{^{+}}$ state at $29972 cm^{-1}$ was fit with a $\sigma= .15$ $cm^{-1}$. This state has a negative $\alpha_{e}$ rotational constant and several perturbed lines were observed. This state is also the final state for several resonantly enhanced two-photon transitions in the R6G region. The $G^{1}\Pi_{g}$ state was observed at $31868 cm^{-1}$ with a fit of $0.15 cm^{-1}$. URI: http://hdl.handle.net/1811/11466 Other Identifiers: 1980-WG-13