Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

New infrared sources for breath analysis

: Lambrecht, A.; Braun, M.; Hartwig, S.; Nurnus, J.; Wöllenstein, J.; Weik, F.; Tomm, J.W.


Mahadevan-Jansen, A. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Biomedical Vibrational Spectroscopy III. Advances in Research and Industry : San Jose, CA, USA, 21 January 2006
Bellingham/Wash.: SPIE, 2006 (SPIE Proceedings Series 6093)
ISBN: 0-8194-6135-0
Conference "Biomedical Vibrational Spectroscopy - Advances in Research and Industry <2006, San Jose/Calif.>
Fraunhofer IPM ()

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.