Laser-induced breakdown spectroscopy in gases using ungated detection in combination with polarization filtering and online background correction

Quantitative and fast analysis of gas mixtures is an important task in the field of chemical, security and environmental analysis. In this paper we present a diagnostic approach based on laser-induced breakdown spectroscopy (LIBS). A polarization filter in the signal collection system enables sufficient suppression of elastically scattered light which otherwise reduces the dynamic range of the measurement. Running the detector with a doubled repetition rate as compared to the laser online background correction is obtained. Quantitative measurements of molecular air components in synthetic, ambient and expiration air are performed and demonstrate the potential of the method. The detection limits for elemental oxygen and hydrogen are in the order of 15 ppm and 10 ppm, respectively.

NATURVETENSKAP Fysik Atom- och molekylfysik och optik hsv//swe
NATURAL SCIENCES Physical Sciences Atom and Molecular Physics and Optics hsv//eng
polarization filtering
quantitative detection
diagnostics
gas
plasma spectroscopy
laser-induced breakdown spectroscopy
LIBS

Troeger, J. W. (författare)
Seeger, T. (författare)
Leipertz, A. (författare)
Li, BoLund University,Lunds universitet,Förbränningsfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Combustion Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)forb-bli (författare)
Li, ZhongshanLund University,Lunds universitet,Förbränningsfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Combustion Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)forb-zli (författare)
Aldén, MarcusLund University,Lunds universitet,Förbränningsfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Combustion Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)forb-mal (författare)
FörbränningsfysikFysiska institutionen (creator_code:org_t)

Av författaren/redakt...: Kiefer, J.; Troeger, J. W.; Seeger, T.; Leipertz, A.; Li, Bo; Li, Zhongshan; visa fler...; Aldén, Marcus; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.