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We present a line-shape study of six absorption lines P(21), P(16), P(19), R(16), R(19) and R(21) in the ν 1 +ν 3 band of the acetylene perturbed by nitrogen. The spectra were recorded using a 3-channel diode laser spectrometer. For each transition studied, the N 2 -broadening, N 2 -narrowing, N 2 -pressure induced line shift and N 2 -line mixing coefficients...
The P-branch of methane׳s ν3 band is probed to carry out an extensive study of the 2905–2908cm−1 infrared spectral region. Absolute line intensities as well as N2-, O2-, H2-, He-, Ar- and CO2-broadening coefficients are determined for nine transitions at room temperature. Narrowing parameters due to the Dicke effect have also been investigated. A narrow emission line-width (~0.0001cm−1) difference-frequency-generation...
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