Abstract
We present first diode–laser measurements of N2-broadened linewidths and strengths of 12C16O2 at high temperature. A T−N dependence of linewidths on temperature is deduced from measurements in the 295–815 K temperature range for the R38, R42, and R54 lines of the ν3 band. The measured line strengths are 21.48±0.49, 12.84±0.28, and 1.82±0.04 cm−2 atm−1 at 300 K for the R38, R42, and R54 lines, respectively. The corresponding half-widths are 71.02, 70.05, and 67.81×10−3 cm−1 atm−1. The N exponent takes the values 0.73±0.05, 0.72±0.02, and 0.72±0.04.
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