Enhancing LIBS by Using a Spatial Light Modulator
A publication presents a study on the enhancement of Laser-Induced Breakdown Spectroscopy (LIBS) using 2D structured light generated by a Spatial Light Modulator (SLM). The paper is entitled, “Laser-Induced Breakdown Spectroscopy Using 2D Structured Light: A Case of Spectral Signal Enhancement on Metal Samples.”
LIBS is a powerful elemental analysis technique that utilizes atomic emission lines from laser-induced plasmas. Applicable across various fields, including metallurgy, LIBS allows for fast, in situ and online measurements, making it highly practical for real-time analysis. The technique is capable of detecting a wide range of elements with high sensitivity. This is demonstrated by the significant signal enhancement and LOD improvement in this study for various elements such as Cr, Mn, Si, Cu, and Al.
A key component in the setup used by the scientists has been the LTB ARYELLE 200 Echelle spectrometer from LTB Lasertechnik Berlin. This spectrometer is known for its broad spectral range and high spectral resolution, covering 200–900 nm with a spectral resolution of 23–100 pm. Its ability to capture detailed spectral information has been crucial this work.
This research now opens new avenues for plasma control and optimization in LIBS applications. Potentially this can lead to more accurate and reliable elemental analysis in various application fields.
About the ARYELLE 200 Spectrograph
The ARYELLE 200 is the perfect compromise between high spectral resolution, size and price. This UV-VIS-NIR wide-range echelle spectrometer has a 200-mm focal length for LIBS and Raman spectroscopy.
- High spectral resolving power (7,000–15,000)
- Large simultaneous wavelength range
- Suitable with various detectors (CMOS, CCD, EMCCD, ICCD)
- Up to 40 spectra/s
For more information or a quotation for LTB products, contact IL Photonics.