LIBS2500+laser-induced breakdown spectroscopy system

The LIBS2500+laser-induced breakdown spectroscopy system is a detection system that allows for real-time qualitative measurements of elements in solids, solutions, and gases. This wide spectrum, high-resolution system provides a spectral analysis range of 200-980 nm, with an optical resolution of~0.1 nm (FWHM).

The working characteristics of LIBS2500+
High intensity, pulsed laser beams are focused on the surface of the sample within a range of a few centimeters to one meter. A 10 nanosecond wide laser pulse excites the sample. When the laser is emitted, the high temperature of the laser generates plasma. As the plasma decays or cools (~1.0 µ s after laser pulse), excited atoms in the plasma emit light of a different wavelength than the sample elements. The wavelength range is 200-980nm. The detection system can simultaneously use up to 7 HR2000+high-resolution miniature fiber spectrometers for simultaneous measurement (reading and writing data), each with a 2048 pixel linear array CCD. The LIBS2500+detector collects a wide spectrum of 200-980nm and transmits it to the application software for data display.

Technical advantages of broadband LIBS
The traditional LIBS detection system provides small-scale spectra, while LIBS2500+is the first system to provide broadband spectral analysis. Due to good security protection, users can conduct real-time on-site measurements, including in harsh industrial, chemical, and biomedical environments, without the need for sample preparation. Due to the use of HR2000 high-resolution miniature fiber optic spectrometer in ocean optics, LIBS2500+has the characteristics of being easy to carry and can be connected to a computer through a USB port.

LIBS technology can be applied in many fields:

• Environmental monitoring (soil pollution, particulate matter)
• Material analysis (metal, plastic)
• Forensic and biomedical research (teeth, bones)
• Military and defense (explosions, biological weapons)
• Art restoration/preservation (pigments, jewelry/ancient metal products)

LIBS2500+laser
There are two types of lasers available for LIBS2500+, both of which are products of Big Sky, a pioneer in the laser industry. Laser ablation and plasma formation are very unique for different samples, so there are different energy requirements for different samples. In most applications, we use Q-switched 1064nm Nd: YAG lasers. If multiple functions are required, we recommend using a 200mJ laser with an attenuator, which can adjust the laser energy according to the sample. The selection of laser energy and wavelength will depend on the material and the degree of allowable damage. LIBS-LASER uses a 50mJ CFR Nd: YAG laser for metal and thin film samples. LIBS-LAS200MJ uses a 200mJ CFR Nd: YAG laser, which is suitable for glass and high OH materials. For liquid samples, a dual wavelength laser can be used, as the oxidizing substances in the sample will slow down the formation of plasma, so another laser is needed to enhance the formation of plasma.

LIBS imaging module
The LIBS-IM-USB imaging module is directly connected to the LIBS-SC sample chamber, allowing users to zoom in on the sample image and accurately locate it on the sample. This module is suitable for different application fields, including forensic medicine, semiconductor analysis, botany, biomedical analysis, gemology, and metallurgy.

The image module allows users to see enlarged images of samples through a CCD camera and PixeLINK (a Windows based image capture software). PixeLINK can capture images and save them on a computer hard drive. The captured images can be used for comparative analysis and record keeping.

The CCD camera in the module provides a resolution of 1280 x 1024 pixels. Each pixel is 6.0 x 6.0 micrometers square. The camera can provide a refresh rate of 12.7 frames per second at a resolution of 1280 x 1024.

The image module is powered by a computer and does not require an external power supply. When connected to a laptop, an external power supply is needed. The price of the peripheral power supply is included in the price of the module.