Document Detail


A wide spectral range photoacoustic aerosol absorption spectrometer.
MedLine Citation:
PMID:  23035870     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A photoacoustic spectrometer for the measurement of aerosol absorption spectra, based on the excitation of a pulsed nanosecond Optical Parametrical Oscillator (OPO), will be introduced. This spectrometer is working at ambient pressure and can be used to detect and characterize different classes of aerosols. The spectrometer features a spectral range of 405 nm to 2500 nm and a sensitivity of 2.5•10^{-7} m^{-1} at 550 nm. A full characterization of the system in the visible spectral range is demonstrated and the potential of the system for near IR measurement is discussed. On the example of different kinds of soot particles, the performance of the spectrometer was assessed. As we demonstrate, it is possible to determine a specific optical absorption per particle by a combination of the new spectrometer with an aerosol particle counter.
Authors:
Christoph Haisch; Peter Menzenbach; Henrike Bladt; Reinhard Roland Niessner
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  Analytical chemistry     Volume:  -     ISSN:  1520-6882     ISO Abbreviation:  Anal. Chem.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370536     Medline TA:  Anal Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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