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- Title
Design of LIBS Beam Shaping System Based on Piano-Convex Cylindrical Mirror.
- Authors
CHEN Ziying; LI Honglian; YIN Xiaolin; FANG Lide; LI Yingying
- Abstract
In order to improve the uneven distribution of laser energy in laser-induced breakdown spectroscopy(LIBS) technology, simulation software was used to simulate the optical path imaging of flat convex cylindrical mirrors with different focal lengths of 12.5 mm radius. The simulation showed that the optimal focal length meeting the laser conditions was 100 mm. On this basis, a shaping system based on LIBS beam was built. Compared with the non-convex mirror, the mean square error coefficient of focal spot light intensity for the strontium element in the sample decreased by an average of 41.91%, the peak-to-valley ratio of focal spot intensity decreased by an average of 41.27%, the energy uniformity increased by an average of 17.23%, and the coefficient of determination for the fitting increased from 0.860 to 0.914. The results show that the plano-convex cylindrical mirror can improve the uniformity of beam energy, proving that it is an effective method for laser beam shaping.
- Publication
Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue, 2024, Vol 14, Issue 2, p247
- ISSN
2095-1035
- Publication type
Article
- DOI
10.3969/j.issn.2095-1035.2024.02.015