Evaluation of femtosecond laser-induced breakdown spectroscopy for explosive residue detection

Femtosecond fiber-laser-based laser-induced breakdown spectroscopy

This paper reports the LIBS studies on elemental composition detection and identification by employing a femtosecond (fs) fiber laser. High quality LIBS spectra were obtained in air using near-infrared fs fiber laser coupled with a broadband high sensitivity spectrometer without gating control. Specific ion and neutral emission lines of different materials have been characterized by line scanni...

Evaluation of femtosecond laser-induced breakdown spectroscopy for analysis of animal tissues.

The aim of this work was to evaluate the performance of femtosecond laser-induced breakdown spectroscopy (fs-LIBS) for the determination of elements in animal tissues. Sample pellets were prepared from certified reference materials, such as liver, kidney, muscle, hepatopancreas, and oyster, after cryogenic grinding assisted homogenization. Individual samples were placed in a two-axis computer-c...

Influence of metal substrates on the detection of explosive residues with laser-induced breakdown spectroscopy.

Laser-induced breakdown spectroscopy is a promising approach for explosive residue detection, but several limitations to its widespread use remain. One issue is that the emission spectra of the residues are dependent on the substrate composition because some of the substrate is usually entrained in the laser-induced plasma and the laser-material interaction can be significantly affected by the ...

Femtosecond laser-induced breakdown spectroscopy: physics, applications, and perspectives.

Progress in technology and society continually places new demands on analytical science and more powerful and informative methods need to be developed. One among them is laser-induced breakdown spectroscopy (LIBS), sometimes also referred to as LIPS (laserinduced plasma spectroscopy). Typically, LIBS measurements are conducted with nanosecond time scale lasers. A review by Song et al.1 and two ...

Detection of Energetic Materials and Explosive Residues With Laser-Induced Breakdown Spectroscopy: I. Laboratory Measurements