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PERTURBATION AND PREDISSOCIATION OF THE $Na_{2} 3^{3}\Pi_{g}$ AND $4^{3}\Sigma^{+}_{g}$ STATES

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/13785

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Title: PERTURBATION AND PREDISSOCIATION OF THE $Na_{2} 3^{3}\Pi_{g}$ AND $4^{3}\Sigma^{+}_{g}$ STATES
Creators: Liu, Y.; LI, J.; Chen, D.; Li, Li; Field, R. W.; Lyyra, A. M.
Issue Date: 1997
Abstract: The $Na_{2} 3^{3}\Pi_{g}$ and $4^{3}\sum^{+}_{y}$ state dissociate adiabatically to the 3s+4p atomic limit. Energy levels below the 3s+3d atomic limit of these two states have been observed by perturbation facilitated optical-optical double resonance (PFOODR) fluorescence excitation $spectroscopy.^{[m,n]}$, Energy levels above the 3s+3d atomic limit could not be observed by detecting molecular fluorescence but have been observed recently by detecting atomic $3d \rightarrow 3p$ fluorescence. The $3^{3}\Pi_{g}$ and $4^{3}\sum^{+}_{g}$ states ineract with the $3s+3d 2^{3} \Pi_{g}$ and $3^{3}\sum^{+}_{g}$ states, respectively. As a result of the perturbation the $3^{3}\Pi_{g}$ state strangly predissociates and the linewidth of levels close to the 3s-3d limit is about $15 cm^{-1}$. The $4^{3}\sum^{+}_{g}$ state is weakly predissociated.
URI: http://hdl.handle.net/1811/13785
Other Identifiers: 1997-FB-02
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