Method: IQF Laser Induced Breakdown Spectroscopy
Alternative labels
IQF LIBS
Description
Laser-induced breakdown spectroscopy (LIBS) is a type of atomic emission spectroscopy that uses a highly energetic laser pulses as an excitation source. The laser, focused on the material under study, generates a plasma when the laser fluence overcomes a certain threshold for optical breakdown, condition that generally depends on the environment and the target material. The spectroscopic analysis of the emitting plasma reveals the elemental composition of the sample material. LIBS is a minimally invasive technique that consumes a microscopic amount of sample. Stratigraphic analysis of the sample is also possible via LIBS by successive application of repetitive laser pulses over the sample. The technique can be applied to any type of material or object and does not require sample preparation. The LIBS equipment of this FIXLAB uses a Nd:YAG laser with pulses of nanosecond duration and fixed wavelengths from the UV to the IR (213, 266, 532 and 1064 nm).
Techniques
Laser induced breakdown spectroscopy (libs)
Type
Analysis method
Version
1.0
Parameters
Type: fluency
Unit: mJ/cm2
Value: 2000 - 20000
Type: wavelength range
Unit: nm
Value: 266 - 1064
Type: spectral resolution
Unit: nm
Value: 0.17