Diode-laser measurements of N _2-broadening coefficients in the ν _(10) band of allene at room temperature

摘要

Using a tunable diode-laser spectrometer, we have measured the N 2-broadening coefficients of 32 absorption lines in the ν 10 band of allene at room temperature. For each line under study, we have recorded spectra at five pressures of perturber gas ranging from 7 to 37mbar. The line profiles have been fitted, at each pressure, with different lineshape models. From these fits, we have obtained the collisional half-width at each pressure and determined accurately the N 2-broadening coefficients.