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Laser Induced Breakdown Spectroscopy (LIBS2500+)

/ Spectrometer systems

Laser Induced Breakdown Spectroscopy is a non-invasive technique for real-time, qualitative and semi-quantitative spectral analysis of elements in solids, solutions and gases.

The LIBS2500+ is a broadband (200-980 nm), high resolution detection system with an optical resolution of ~0.1 nm (FwHM). Sensitivity to parts-per-billion and picogram levels is possible.

OEM spectrometers or complete systems are available. Systems include an active Q-switch laser and laser imaging module, a fibre bundle for plasma light guiding, a sample chamber in an eyeware-safe enclosure with manually control- led X, y, Z stage and operating software.

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  • Broadband spectral analysis
  • High resolution
  • Instant results / fast sampling times
  • No sample preparation
  • Compact design
  • Affordable
  • Flexible sampling tools / set-up
  • Environmental : soil, particulates, sediments
  • Materials analysis : metals, slag, plastics, glass
  • Forensics & biomedical : teeth, bones
  • Metrology : silicon wafers, semiconductor materials
  • Bioresearch : plants, grains
  • Safety : chemical and biological warfare agents
  • Military : explosives
  • Art restoration & conservation : pigments, paints
  • Gemmology : beryllium detection, gemstones fingerprint
  • And many more…
Sample chamber
Dimensions17.8 x 26.7 x 22.8 cm
Weight5 kg
Spectrometer system
Dimensions33.4 x 15.0 x 14.0 cm maximum
Wavelength range200-980 nm (channel dependent)
Optical resolution~ 0.1 nm FWHM
Integration time1 ms; variable in free-run mode
TypeLinear silicon CCD detector
PixelsTotal of 14.336 pixels
Trigger delay-121 μs to +135 μs in 500 ns steps (user-configured)
Trigger jitter~ 20 nanoseconds
Trigger levelTTL not to exceed 5.5 volts
Power requirements5 volts @ ≤1 amp, power supply included
Frame rate1 kHz capability (pc-controlled)
Operating systemsWindows 98/Me/2000/Xp on desktop or notebook PCs
Computer interfacesUSB 1.1 or USB 2.0

A high-intensity, pulsed laser beam is focused on the sample area, positioned a few centimeters to a meter from the sample. A single 10 nanosecond-wide laser pulse is all that is needed to excite the sample. When the laser is fired, the high temperature of the laser creates plasma. As the plasma decays or cools (~1.0 µsec after the laser pulse), excited atoms in the plasma emit light of characteristic wavelengths distinct to the element. All elements emit in the 200-980 nm region.

LIBS2500+ systems use up to seven of our HR2000+ high-resolution spectrometers, each with a 2048-element linear CCD array. All spectrometers are triggered to acquire and read out data simultaneously.

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