Abstract

The IR spectrum of the Meinel bands of the OH and OD free radicals was observed in a cold ozone-hydrogen diffusion flame using the Fourier transform spectrometer at the National Solar Observatory (Kitt Peak). Eighteen bands have been observed in the spectral region between 1900 and 9000 cm^-1. Wavenumbers, intensities, line shapes, and isotope shifts have been obtained. The spectrum has been synthesized and optimal molecular parameters obtained using molecular Hamiltonians and nonlinear least-squares fitting techniques. The same spectrum has been observed in two other sources, the inductively coupled plasma and the oxyacetylene flame. Comparisons of the three spectra are being made.

© 1988 Optical Society of America