# Browse Abstracts & Presentations - 2014 International Symposium on Molecular Spectroscopy by Subject "Analytical, Combustion, Plasma"

• (International Symposium on Molecular Spectroscopy, 2014-06-16)
An instrument has been developed to make 10 kHz \textit{in situ} combustion gas measurements of carbon monoxide ($CO$) and carbon dioxide ($CO_2$) concentrations. Operating in both the 4.40 and 4.58 $\mu m$ wavelength ...

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Microsoft PowerPoint 2007 (33MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
High resolution rotational spectroscopy enables chemical sensors that are both sensitive and highly specific, which is well suited for analysis of expired human breath. We have previously reported on detection of breath ...

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Microsoft PowerPoint 2007 (4MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
Chirped probe pulse (CPP) femtosecond (fs) coherent anti-Stokes Raman scattering (CARS) thermometry at 5 kHz has been successfully applied for single-laser-shot flame temperature measurements in a mildly turbulent hydrogen-air ...

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• (International Symposium on Molecular Spectroscopy, 2014-06-16)
\begin{wrapfigure}{l}{0pt} \includegraphics[scale=0.9]{TOCFigure.eps} \end{wrapfigure} Metal oxides are widely used in gas sensor applications due to their low cost, easy production and selectivity. Tungsten Oxide ...

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Microsoft PowerPoint 2007 (770kB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
Thermoacoustic combustion instability results from the coupling between oscillating heat release and fluctuating pressure inside of a combustion chamber. In the current work, thermoacoustic instability in a low swirl burner ...

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Microsoft PowerPoint 2007 (3MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
Plasmas are often used as ionization sources for ambient mass spectrometry (AMS). Here, the flowing afterglow of a novel high-energy spark discharge system, operated in nitrogen at high repetition rates, is investigated ...

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Microsoft PowerPoint 2007 (3MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
A chirped-pulse Fourier transform mm-wave spectrometer has been tested in analytical chemistry applications of headspace analysis of volatile species. A solid-state mm-wave light source (260-290 GHz) provides 30-50 mW of ...

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Microsoft PowerPoint 2007 (4MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
I will describe a variety of cavity-enhanced spectroscopic techniques, including frequency-agile rapid scanning spectroscopy (FARS) and heterodyne-detected cavity ring-down spectroscopy (HD-CRDS), which we have recently ...

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Microsoft PowerPoint 2007 (5MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
Bank of England notes of 20 GBP denomination have been studied using infrared spectroscopy in order to generate a method to identify forged notes. A principal aim of this work was to develop a method so that a small, compact ...

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Microsoft PowerPoint 2007 (2MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.46]{SFGIntensityXTime.eps} \end{wrapfigure} Vibrational sum frequency generation (SFG) spectroscopy was used to probe electrochemical processes taking place at the ...

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Microsoft PowerPoint 2007 (4MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
Laser ablation is a popular method for generating metal atoms so that metal clusters, complexes, and molecules may be investigated in gas phase spectroscopic studies. However, the initial production of a highly energetic ...

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Microsoft PowerPoint 2007 (2MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
A methodology to probe localized vibrational transitions of self-assembled monolayers (SAMs) adsorbed on gold films using vibrational sum-frequency generation (SFG) is described. The gold film is subjected to heating from ...

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Microsoft PowerPoint 2007 (5MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
\chem{OH} and \chem{HO_2} are key radical species that control the autoignition and flame chemistry of fuels. Quantification of these radicals in the low-temperature oxidation of fuels is challenging due to their low ...

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Microsoft PowerPoint 2007 (2MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
Atmospheric-pressure, low-temperature plasmas exist in nature in the form of ball lightning, and last year a natural ball lightning event was finally observed with scientific equipment.\footnote{Cen, J.; Yuan, P.; Xue, S. ...

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Microsoft PowerPoint 2007 (40MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-16)
Analytical chemical sensing based on high resolution rotational molecular spectra has been recognized as a viable technique for decades. We recently demonstrated a compact implementation of such a sensor \footnote{Neese, ...

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Microsoft PowerPoint 2007 (4MB)