Cavity ring-down spectroscopy of carbon-containing molecules

Angela Staicu; O. Sukhorukov; G. Rouille; Friedrich Huisken; Thomas Henning

doi:10.1117/12.583035

21 October 2004 Cavity ring-down spectroscopy of carbon-containing molecules

Angela Staicu, O. Sukhorukov, G. Rouille, Friedrich Huisken, Thomas Henning

Proceedings Volume 5581, ROMOPTO 2003: Seventh Conference on Optics; (2004) https://doi.org/10.1117/12.583035
Event: ROMOPTO 2003: Seventh Conference on Optics, 2003, Constanta, Romania

Abstract

Among other carbonaceous species, polycyclic aromatic hydrocarbons (PAHs) are of relevance for astrophysics. It is expected that they are present in the interstellar medium and they are considered as possible carriers of the diffuse interstellar bands. To prove this, absorption spectra of PAHs under conditions similar to those met in the interstellar medium should be obtained. We report here the application of cavity ring-down laser absorption spectroscopy to neutral PAHs, namely anthracene and pyrene, cooled in a supersonic jet. The absorption spectra corresponding to the S₁(0) ← S₀(0) transition of anthracene near 361 nm and to the S₂(1,0) ← S₀(0) transitions of pyrene around 321 nm and 316 nm have been studied. The results are similar to the excitation spectra previously reported in the literature.

Citation Download Citation

Angela Staicu, O. Sukhorukov, G. Rouille, Friedrich Huisken, and Thomas Henning "Cavity ring-down spectroscopy of carbon-containing molecules", Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); https://doi.org/10.1117/12.583035

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