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Proceedings Paper

Imaging of carbon monoxide distributions around igniting n-heptane droplets after excitation with a quantum cascade laser at 4.6 µm
Author(s): Alfons Burkert; Wolfgang Triebel; Christian Eigenbrod
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Paper Abstract

Carbon monoxide distributions around igniting n-heptane droplets were determined using absorption measurements. The emission of a quantum cascade laser at 4.6 μm was shaped to a parallel laser beam using a lens. For detection, a plane through the droplet, perpendicular to the laser beam was imaged onto the focal plane array of a mid-infrared camera. For background suppression a long-pass filter was mounted in the detection ray path. To estimate the detection sensitivity of the set-up, CO absorption in a reference cell was measured. In addition, CO transmission spectra were calculated for different temperatures based on HITRAN 2000 catalogue.

Paper Details

Date Published: 1 September 2004
PDF: 7 pages
Proc. SPIE 5459, Optical Sensing, (1 September 2004); doi: 10.1117/12.545467
Show Author Affiliations
Alfons Burkert, Institut fur Physikalische Hochtechnologie e.V. Jena (Germany)
Wolfgang Triebel, Institut fur Physikalische Hochtechnologie e.V. Jena (Germany)
Christian Eigenbrod, Univ. Bremen (Germany)


Published in SPIE Proceedings Vol. 5459:
Optical Sensing
Brian Culshaw; Anna Grazia Mignani; Rainer Riesenberg, Editor(s)

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