Spectral intensity and stability of surface-enhanced laser-induced breakdown spectroscopy of metallic microstructure

Qi Yanbing; Tang Jiayuan; Jiang Meng’en; Zhou Weidong

doi:10.11884/HPLPB202436.240144

Volume 36 Issue 9

Aug. 2024

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Article Navigation > High Power Laser and Particle Beams > 2024 > 36(9): 091002

Qi Yanbing, Tang Jiayuan, Jiang Meng’en, et al. Spectral intensity and stability of surface-enhanced laser-induced breakdown spectroscopy of metallic microstructure[J]. High Power Laser and Particle Beams, 2024, 36: 091002. doi: 10.11884/HPLPB202436.240144

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Qi Yanbing, Tang Jiayuan, Jiang Meng’en, et al. Spectral intensity and stability of surface-enhanced laser-induced breakdown spectroscopy of metallic microstructure[J]. High Power Laser and Particle Beams, 2024, 36: 091002. doi: 10.11884/HPLPB202436.240144

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Spectral intensity and stability of surface-enhanced laser-induced breakdown spectroscopy of metallic microstructure

doi: 10.11884/HPLPB202436.240144

Key Laboratory of Researching Optical Information Detecting and Display Technology in Zhejiang Province, Zhejiang Normal University, Jinhua 321004, China

Received Date: 2024-04-29
Accepted Date: 2024-06-19
Rev Recd Date: 2024-06-19

Available Online: 2024-06-26

Publish Date: 2024-08-16

Abstract

Abstract

To enhance the performance of laser-induced breakdown spectroscopy (LIBS) for the analysis of element Cr in solutions, a surface-enhanced LIBS technique combining metallic microstructures is proposed. Initially, using femtosecond laser surface texturing technology, various shapes and cycles of microstructures including rectangles, circles, triangles, and hexagons were etched on the surface of metallic aluminum. Through comparative analysis, the effects of different microstructures on the surface-enhanced LIBS spectral intensity and stability of Cr-element aqueous solutions deposited on them were investigated. The results indicate that smaller microstructure cycles result in more significant spectral enhancement, with rectangular microstructures demonstrating the optimal spectral enhancement at the same period, increasing the spectral intensity by approximately four times compared to untreated metallic aluminum. Furthermore, hexagonal microstructures exhibit the best spectral stability and repeatability. These findings provide a viable method for substrate preparation for applying surface-enhanced LIBS techniques to the detection of heavy metal elements in aqueous solutions.
- laser-induced breakdown spectroscopy,
- surface-enhancement,
- microstructure,
- femtosecond laser,
- stability

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References(16)

References

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