Influence of the laser repetition rate on the limits of detection in the femtosecond LIBS of the water solutions

Yu. S. Tolstonogova; S. S. Golik; A. A. Iliyn; M. Yu. Babiy; A. Yu. Mayor; D. Yu. Proschenko; M. S. Sporyshev

doi:10.1117/12.2315190

4 January 2019 Influence of the laser repetition rate on the limits of detection in the femtosecond LIBS of the water solutions

Yu. S. Tolstonogova, S. S. Golik, A. A. Iliyn, M. Yu. Babiy, A. Yu. Mayor, D. Yu. Proschenko, M. S. Sporyshev

Author Affiliations +

Proceedings Volume 11024, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics 2017; 110240I (2019) https://doi.org/10.1117/12.2315190
Event: Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics 2017, 2017, Taipei, Taiwan

Abstract

The limit of detection for Mg, Mn, Sr, B was experimentally investigated depending on the laser pulse repetition rate in the time resolved femtosecond LIBS. Optical breakdown on the surface of aqueous solutions was generated by the femtosecond Ti:Sa laser with the following parameters: central wavelength - 800 nm, pulse width - 60 fs, pulse energy - 1 mJ, repetition rate 50 Hz, 166 Hz, 250 Hz, 500 Hz, 1000 Hz. The best limit of detection was obtained for the 166 Hz laser repetition rate and for the following elements Mg I (285.2 nm), Mn I (403 nm, 403.3 nm), B I (283.2 nm), Sr I (460.7 nm) are 0.058, 0.025, 1.13, 4.69^-3 mg/kg respectively.

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Yu. S. Tolstonogova, S. S. Golik, A. A. Iliyn, M. Yu. Babiy, A. Yu. Mayor, D. Yu. Proschenko, and M. S. Sporyshev "Influence of the laser repetition rate on the limits of detection in the femtosecond LIBS of the water solutions", Proc. SPIE 11024, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics 2017, 110240I (4 January 2019); https://doi.org/10.1117/12.2315190

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