Cavity ring-down spectroscopy of CO2 overtone bands near 830 nm

Three bands 4003i-00001 (i=2, 3, 4) of the Fermi pentad of (CO2)-C-12-O-16 near 830 nm have been recorded with a continuous-wave cavity ring down spectrometer. A sensitivity at the 5 x 10(-11) cm(-1) level allowed us to obtain line positions and intensities of these very weak bands. The measured line intensities of these three bands together with those published for the 10051-00001 and 10052-00001 bands were used to obtain the effective dipole moment parameters of (CO2)-C-12-O-16 u for the Delta P=17 series of transitions, where P=2V(1) + V-2 + 3V(3) is a polyad number (V-1 (i=1, 2, 3) are vibrational quantum numbers). Comparisons of the measured line positions and intensities of the 4003i-00001 (i = 2, 3,4) bands to those from the AMES and GEISA line lists are given. (C) 2015 Elsevier Ltd. All rights reserved.