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Sample Setup: Laser Induced Breakdown Spectrometer
OverviewThe LIBS2500 Broadband Spectrometer is a detection system for real-time elemental analysis in solids, solutions and gases. This high-resolution system provides full spectral analysis from 200-980 nm, with optical resolution of ~0.1 nm (FWHM). Principle of OperationAn Nd:YAG pulsed laser beam is focused on the sample area. The energy of the laser generates a plasma, in which a trace amount of the sample has been ablated. As the plasma decays or cools, the plasma emits light of wavelengths that are distinct to each element. The emission is collected by a 7-fiber bundle and sent to the spectrometers for analysis. SpectrometersThe LIBS2500-7 uses seven high-resolution spectrometers, which connects to a PC via one USB port. All seven spectrometers acquire data simultaneously; software displays the results. However, you may require a system with less than seven spectrometer channels. Sampling OpticsThe LIBS-LASER is a 50 mJ CFR Nd:YAG laser for metal and thin film samples and sells for $14,500. The LIBS-LAS200MJ is a 200 mJ CFR Nd:YAG laser for most all other materials and is priced at $22,500. Both lasers are manufactured by Big Sky Laser. The LIBS-SC Sample Chamber has a manual x-y-z stage and a remote laser safety lock. Signal is collected by a fiber bundle comprising (7) 600 µm UV-VIS patch cords, each with a collimating focusing lens built into the fiber termination. MeasurementsOOILIBS Software allows users to set operating parameters such as the laser Q-switch delay (the time between the firing of the laser and the beginning of spectral acquisition) and signal averaging of laser pulses. Ordering Information
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