MODULATED GAIN SPECTROSCOPY IN $Na_{2}$
Loading...
Date
1981
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
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 $Na_{2}$ 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 $Na_{2}$, laser. This triple resonance process is detected by the resonant increase in the $Na_{2}$ 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 $A^{1}\Sigma _{u}{^{+}}$ state of $Na_{2}$ has already been extended from $v^{\prime}_{\max} = 44$ to $V^{\prime} _{\max}=62.$ rnax
Description
Author Institution: