N2-Broadening for Methyl Chloride at Low Temperature by Diode-Laser Spectroscopy

N2-broadening coefficients of methyl chloride at room temperature

“…This large scale of measurements describing the J and K dependences confirmed and clarified the trend of previous works [9][10][11][12].…”

“…Figure 8 shows such a comparison between experimental measurements together with the empirical model presented in Section 4.1, the theoretical calculation presented in Section 4.2, and the theoretical calculations of Ref. [9].…”

“…It is also important to stress that the various measurements have been obtained with different techniques: Fourier transform spectroscopy in our study, tunable diode laser for Ref. [9][10][11][12], and a frequency-modulation chain and continuous-wave photomixing spectrometer for Ref. [8].…”

“…Measurements and calculations of N 2 -broadening coefficients have been previously performed for CH 3 Cl in the ν 3 band around 730 cm -1 [9][10][11][12]. The experimental spectra have been recorded using a diode laser spectrometer which allows recording of spectra with a high signal-to-noise ratio but only for a small spectral range.…”

“…The upper panel represents an example of the simultaneous fit of two transitions from 7 experimental spectra (from lower to higher pressure, see Red stars stand for the experimental values obtained in Ref. [9] and red dotted line represents the theoretical calculations from Ref. [9].…”