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We report a new spectroscopic technique which allows the study of high vibrational levels of a molecule in excited electronic states, otherwise inaccessible from the thermally populated group state levels. In an $Ar+$ laser pimped $Na2$ ring laser high vibrational levels of the ground state can be effectively populated. From these levels excitation to the levels of interest in upper electronic states is achieved by focusing a dye laser bean into the mode volume of the $Na2$, laser. This triple resonance process is detected by the resonant increase in the $Na2$ laser output power caused by the depletion of the bottle-necking lower laser level population. By virtue of this method the range of experimentally detected vibrational levels of $A1\Sigma u\mathrm{<mrow\; data-mjx-texclass="ORD">+</mrow>}$ state of $Na2$ has already been extended from $vmax\prime =44$ to $Vmax\prime =62.$ rnax