Applied Physics B

, Volume 90, Issue 2, pp 355–360 | Cite as

Fiber optic evanescent field sensor for detection of explosives and CO2 dissolved in water

  • R. Orghici
  • U. Willer
  • M. Gierszewska
  • S.R. Waldvogel
  • W. Schade
Article

Abstract

A fiber optic approach for the determination of the carbon dioxide concentration in the gas or fluid phase during sequestration, as well as for the sensing of the explosive TNT is described. The sensor consists of a quartz glass multimode fiber with core diameter of 200 μm and is based on the evanescent field principle. Cladding and jacket of the fiber are removed in the sensing portion, therefore interaction between light within the fiber and the surrounding medium is possible. A single-mode distributed feedback (DFB) laser diode with an emission wavelength around λ= 1.57 μm and a frequency doubled passively Q-switched Cr4+:Nd3+:YAG microchip laser (λ= 1064 nm)are used as light sources. The experimental setup and the sensitivity of the evanescent field sensor are characterized.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    N.J. Harrick, Internal Reflection Spectroscopy (Interscience, Wiley, New York, 1967)Google Scholar
  2. 2.
    F. de Fornel, Evanescent Waves (Springer, Berlin Heidelberg New York, 2001)Google Scholar
  3. 3.
    P. Suresh Kumar, C.P.G. Vallabhan, V.P.N. Nampoori, V.N. Sivasankara Pilai, P. Radhakrishnan, J. Opt. A Pure Appl. Opt. 4, 247 (2002)CrossRefGoogle Scholar
  4. 4.
    J. Bürck, J.-P. Conzen, H.-J. Ache, Fresenius J. Anal. Chem. 342, 394 (1992)CrossRefGoogle Scholar
  5. 5.
    P.K. Choudhury, T. Yoshino, Optik 115, 329 (2004)ADSGoogle Scholar
  6. 6.
    U. Willer, D. Scheel, I. Kostjucenko, C. Bohling, W. Schade, E. Faber, Spectrochim. Acta A 58, 2427 (2002)CrossRefGoogle Scholar
  7. 7.
    C. Siering, B. Beermann, S.R. Waldvogel, Supramol. Chem. 18, 23 (2006)Google Scholar
  8. 8.
    M.C. Schopohl, A. Faust, D. Mirk, R. Fröhlich, O. Kataeva, S. Waldvogel, Eur. J. Org. Chem. 2987 (2005)Google Scholar
  9. 9.
    U. Willer, C. Bohling, W. Schade, Opt. Photon. News 15, 18 (2004)Google Scholar
  10. 10.
    R.L. Woodfin (ed.), Trace Chemical Sensing of Explosives (Wiley, New York, 2007)Google Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • R. Orghici
    • 1
  • U. Willer
    • 1
    • 2
  • M. Gierszewska
    • 1
  • S.R. Waldvogel
    • 2
    • 3
  • W. Schade
    • 1
    • 2
  1. 1.Institute of Physics and Physical TechnologiesClausthal University of TechnologyClausthal-ZellerfeldGermany
  2. 2.Laser Application CenterClausthal University of TechnologyClausthal-ZellerfeldGermany
  3. 3.Kekulé Institute for Organic Chemistry and BiochemistryUniversity BonnBonnGermany

Personalised recommendations