36 research outputs found

    Intracavity Laser Absorption Spectroscopy and Fourier Transform Spectrum of the 3ν 1 band region of cyanoacetylene

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    International audienceThe second CH stretching overtone of cyanoacetylene, HC 3N, near 9700 cm -1 has been recorded by Fourier Transform Spectroscopy (FTS) and by Intracavity Laser Absorption Spectroscopy (ICLAS) with a Vertical External Cavity Surface Emitting Laser (VECSEL). In total thirteen bands have been identified in the highly congested spectra and rotationally assigned. Their rovibrational spectroscopic parameters have been obtained from a fit of the line centers
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