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Proceedings Paper

New infrared sources for breath analysis
Author(s): A. Lambrecht; M. Braun; S. Hartwig; J. Nurnus; J. Wöllenstein; F. Weik; J. W Tomm
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Paper Abstract

Infrared breath analysis is used in diagnostics of respiratory diseases, pulmonary function testing, and for metabolic studies. With selective and highly sensitive instruments exhaled trace gas concentrations can be related to specific diseases. For many applications also a time resolution below 0.1s is needed. Frequently, performance is limited by the IR source. New developments offer solutions even for compact instruments. Different setups employing quantum cascade lasers (QCL), VCSELs, and a new optically pumped IR emitter are compared focusing on CO2 measurements as an example.

Paper Details

Date Published: 27 February 2006
PDF: 9 pages
Proc. SPIE 6093, Biomedical Vibrational Spectroscopy III: Advances in Research and Industry, 60930B (27 February 2006); doi: 10.1117/12.644561
Show Author Affiliations
A. Lambrecht, Fraunhofer Institute for Physical Measurement Techniques (Germany)
M. Braun, Fraunhofer Institute for Physical Measurement Techniques (Germany)
S. Hartwig, Fraunhofer Institute for Physical Measurement Techniques (Germany)
J. Nurnus, Fraunhofer Institute for Physical Measurement Techniques (Germany)
J. Wöllenstein, Fraunhofer Institute for Physical Measurement Techniques (Germany)
F. Weik, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
J. W Tomm, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)


Published in SPIE Proceedings Vol. 6093:
Biomedical Vibrational Spectroscopy III: Advances in Research and Industry
Anita Mahadevan-Jansen; Wolfgang H. Petrich, Editor(s)

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