# HIGH ROVIBATIONAL LEVELS IN THE $A^{1}\Sigma_{u}^{+}$ AND $F^{1}\Sigma_{g}^{+}$ STATES OF $^{7}Li_{2}$

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 Title: HIGH ROVIBATIONAL LEVELS IN THE $A^{1}\Sigma_{u}^{+}$ AND $F^{1}\Sigma_{g}^{+}$ STATES OF $^{7}Li_{2}$ Creators: Urbanski, K.; Yiannopoulou, A.; Lyyra, A. M.; Li, Li Issue Date: 1994 Publisher: Ohio State University Abstract: High rovibrational levels in the $A \ {^{1}} \Sigma^{+}_{u}$ have been observed by cw triple resonance spectroscopy. Population was moved to the $F {^{1}}\Sigma^{+}_{g}$ state via $X \ {^{1}} \Sigma^{+}_{g} \rightarrow A \ {^{1}} \Sigma^{+}_{u} \rightarrow F \ {^{1}} \Sigma^{+}_{g}$ which employed two ring dye lasers. A Ti-Sapphire ring laser then dumped population back to higher levels in the $A \ {^{1}} \Sigma^{+}_{u}$ state. These levels were detected as dips in the collision induced side fluorescence, $2 {^{3}}\Pi_{g} \rightarrow a {^{3}} \Sigma^{+}_{u}$, which was monitored using a filtered PMT. High levels in the $F {^{1}}\Sigma^{+}_{g}$ state have been observed using optical double resonance (OODR). Rovibrational levels have been observed up to and beyond the shelf in this state using a filtered PMT and an ionization detector. Description: Author Institution: Physics Department, Temple University; Physics Department, Dalian Institute of Chemical physics URI: http://hdl.handle.net/1811/12986 Other Identifiers: 1994-FA-09