HIGH RESOLUTION OBSERVATIONS OF LASER EXCITED FLUORESCENCE IN $NO_{2}$

Abstract

Fluorescence of nitrogen dioxide excited by several lines of an argon ion laser has been dispersed and recorded with a resolution of $0.05 cm^{-1}$. The fluorescence wavelengths thus observed allow precise vibrational and rotational constants to be determined for high-lying vibrational states of $NO_{2}$. The ``continuum'' fluorescence reported by previous workers exhibits no identifiable structure even at high resolution.