Author/Authors :
Kassi، نويسنده , , Samir and Leshchishina، نويسنده , , Olga and Gordon، نويسنده , , Iouli E. and Yu، نويسنده , , Shanshan and Campargue، نويسنده , , Alain، نويسنده ,
Abstract :
The high sensitivity absorption spectrum of the a 1 Δ g - X 3 ∑ g - band of 16O17O, 17O18O and 17O2 has been recorded by CW-Cavity Ring Down Spectroscopy near 1.27 μm. The spectra were obtained between 7640 and 7917 cm−1 with a 17O-enriched sample at room temperature and at 80 K. Due to the I = 5/2 nuclear spin of the 17O atom, the nuclear hyperfine structure of the transitions could be partly resolved at low temperature. The parameter coupling of the nuclear spin to the electronic angular momentum in the a1Δg state has been derived for the three studied isotopologues of oxygen.
