LASER INDUCED FLUORESCENCE FROM DISSOCIATIVE AND PREDISSOCIATIVE STATES OF OZONE
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Publisher:Ohio State University
Laser induced fluorescent (LIF) from bound states of molecules is well known but LIF from dissociative states such as the upper electronic state of the Huggins bands and Hartley continuum of ozone has not been reported previously. Recently, we used the fourth harmonic of a Nd:YAG laser at 266 nm to excite the Hartley continuum and observed the dispersed fluorescence which clearly showed vibrational structure for the ground state of ozone. We have also obtained the excitation spectrum for a number of Huggins bands by using a tunable dye laser pumped by the Nd:YAG laser. We will discuss the ozone ground state spectrum which shows vibrational structure unreported previously and show that information on the dissociative state can be obtained by this technique.
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