Time-domain Terahertz Spectrsocopy Of Polycyclic Aromatic Hydrocarbons

Carroll, Brandon

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https://hdl.handle.net/2142/51158 Copy

Description

Title

Time-domain Terahertz Spectrsocopy Of Polycyclic Aromatic Hydrocarbons

Author(s)

Carroll, Brandon

Contributor(s)

• Blake, Geoffrey
• McGuire, Brett A.
• Finneran, Ian
• Ioppolo, Sergio
• Allodi, Marco A.

Issue Date

2014-06-17

Keyword(s)

Astronomy

Abstract

Polycyclic aromatic hydrocarbons (PAHs) present themselves as a strong candidate as carriers of the unidentified infrared features (UIRs). As UIR carriers, PAHs may account for up to 20\% of the interstellar carbon budget and may play key roles in many chemical and physical processes in the ISM, and yet our inability to definitively detect PAHs hinders our ability to evaluate the role they may play. A possible solution is observations in the TeraHertz (THz) regime, where observed transitions are specific to each molecule. Recent advances in THz technology have enabled both laboratory spectroscopy and astronomical observations in this region. A first step in both laboratory and astronomical studies of PAHs is the acquisition of spectra of pure PAH samples. Here, we present the THz time-domain spectra (0.3 - 7 THz) of several PAHs, including naphthalene, anthracene, and pyrene, and discuss the utility of these spectra for future laboratory and astronomical studies.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/51158

DOI

https://doi.org/10.15278/isms.2014.TA03

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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