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Proceedings Paper

Cavity ring-down spectroscopy of carbon-containing molecules
Author(s): Angela Staicu; O. Sukhorukov; G. Rouille; Friedrich Huisken; Thomas Henning
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Paper 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.

Paper Details

Date Published: 21 October 2004
PDF: 7 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.583035
Show Author Affiliations
Angela Staicu, Friedrich-Schiller-Univ. (Germany)
O. Sukhorukov, Friedrich-Schiller-Univ. (Germany)
G. Rouille, Friedrich-Schiller-Univ. (Germany)
Max-Planck-Institut fuer Astronomie (Germany)
Friedrich Huisken, Friedrich-Schiller-Univ. (Germany)
Max-Planck-Institut fuer Astronomie (Germany)
Thomas Henning, Max-Planck-Institut fuer Astronomie (Germany)

Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics
Valentin I. Vlad, Editor(s)

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