Applied Physics B

, Volume 78, Issue 5, pp 535–537

Remote detection and identification of biological aerosols using a femtosecond terawatt lidar system

  • G. Méjean
  • J. Kasparian
  • J. Yu
  • S. Frey
  • E. Salmon
  • J.-P. Wolf
Rapid communication

DOI: 10.1007/s00340-004-1466-x

Cite this article as:
Méjean, G., Kasparian, J., Yu, J. et al. Appl Phys B (2004) 78: 535. doi:10.1007/s00340-004-1466-x

Abstract

We demonstrate experimentally the first range-resolved detection and identification of biological aerosols in the air by non-linear lidar. Ultra-short terawatt laser pulses are used to induce two-photon-excited fluorescence (2PEF) in riboflavin-containing particles at a remote location. We show that, in the case of amino acid detection, 2PEF-lidar should be more efficient than linear 1PEF-lidar beyond a typical distance of 2 km, because it takes advantage of the higher atmospheric transmission at the excitation wavelengths. 2PEF-lidar moreover allows size measurement by pump–probe schemes, and pulse shaping may improve the detection selectivity.

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • G. Méjean
    • 1
  • J. Kasparian
    • 1
  • J. Yu
    • 1
  • S. Frey
    • 1
  • E. Salmon
    • 1
  • J.-P. Wolf
    • 1
  1. 1.Teramobile Project, LASIM, UMR CNRS 5579Université Claude Bernard Lyon 1 Villeurbanne CedexFrance