LIBS (Laser Induced Breakdown Spectroscopy)

LIBS - Principle

Laser-induced breakdown spectroscopy (LIBS) is a type of atomic emission spectroscopy which uses a highly energetic laser pulse as the excitation source. In principle, LIBS can analyse any matter regardless of its physical state, be it solid, liquid or gas. Because all elements emit light of characteristic frequencies when excited to sufficiently high temperatures, LIBS can (in principle) detect all elements, limited only by the power of the laser as well as the sensitivity and wavelength range of the spectrograph & detector.

LIBS - Applications

  • Express-analysis of soils and minerals (geology, mining, construction)
  • Exploration of planets (Mars, Venus)
  • Environmental monitoring (Real-time analysis of air and water quality, control of industrial sewage and exhaust gas emissions)
  • Biological samples (non-invasive analysis of human hair and teeth for metal poisoning, cancer tissue diagnosis, bacteria type detection, detection of bio-aerosols and bio-hazards, anthrax, airborn infectious disease, viruses, sources of allergy, fungal spores, pollen). Replacing antibody, cultural, and DNA types of analysis
  • Archeology (analysis of artifacts restoration quality)
  • Architecture (quality control of stone buildings and glasses restoration)
  • Security and Defense (detection of biological weapons, explosives, backpack-based detection systems for homeland security)
  • Forensic (gun shooter detection)
  • Combustion processes (analysis of intermediate combustion agents, combustion products, furnace gases control, control of unburned ashes)
  • Metal industry (in-situ metal melting control, control of steel sheets quality, 2D mapping of Al alloys)
  • Nuclear industry (detection of cerium in U-matrix, radioactive waste disposal
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