Corrigendum to “N2, O2, and air broadening of NH3 in ν2 band measured by FTIR spectroscopy” [J. Mol. Spectrosc. 173 (1995) 591–602]

Measurements of 14NH3 in the ν2=1 state by a solid-state, photomixing, THz spectrometer, and a simultaneous analysis of the microwave, terahertz, and infrared transitions between the ground and ν2 inversion–rotation levels

“…Resolved hyperfine structure was averaged according to theoretical weights, and this single averaged frequency was used. Next, we added the Fourier transform spectrometer data reported by Poynter and Margolis [54,55], by Urban and co-workers [56,57,61], the few measurements of Brown and Toth [58], and Fabian et al [59]. Only higher J data absent of more accurate data sets was taken from diode laser measurements of Jermanussen et al [60] and long path FTS measurements of Urban et al [57].…”

“…A summary of the microwave investigations of the ground state inversion spectra prior to 1975 is provided by Poynter and Kakar [48]. Infrared investigations of the m 2 band have been performed using grating spectrometers [53], Fourier-transform spectrometers [54][55][56][57][58][59][60], and tunable-diode-laser spectrometers [61][62][63]. In this paper, we report an innovative spectrometer that generates coherent radiation in the 200-1600 GHz region and its application to the ammonia molecule.…”

Self- and foreign-gas-broadened lineshapes in the ν1 band of NH3

“…Since then, Fabian et al [37] reported FTS measurements of N 2 , O 2 and air broadenings in the m 2 R and Q branches which have a weighted average ratio of AEc m (m 2 )/c m (m 1 )ae = 1.46 (12) for N 2 and AEc m (m 2 )/c m (m 1 )ae = 1.38 (13) for O 2 for the 40 lines corresponding to our m 1 measurements. However, we do not believe these represent a systematic vibrational dependence since there are similar discrepancies between [37] and the more accurate recent m 2 measurements in [15]. Moreover, Fabian et al later reported diode laser [38] and FTS [39] measurements in better agreement with ours, yielding AEc m (m 2 )/c m (m 1 )ae = 0.96(6) for selfbroadening for 14 corresponding lines.…”

Diode-laser measurements of O2, N2 and air-pressure broadening and shifting of NH3 in the 10μm spectral region

“…There have been previous measurements of pressure broadening and shifting in the m 2 band of NH 3 perturbed by different foreign gases [6][7][8][9][10][11][12][13]. Fabian et al [6] measured the collisional line width in the m 2 band of NH 3 perturbed by O 2 , N 2 , and air, with a Fourier transform spectrometer.…”

“…Fabian et al [6] measured the collisional line width in the m 2 band of NH 3 perturbed by O 2 , N 2 , and air, with a Fourier transform spectrometer. Recently, Aroui et al [7] have studied selfbroadening and intensities in the m 2 and m 4 bands of NH 3 .…”