Influence of energy and repetition rate of the femtosecond laser pulses on the spectral and temporal characteristics of plasma in laser induced breakdown spectroscopy of aqueous solutions


2016

Голик С. С., Ильин А. А., Biryukova, Y.S., Golik, S.S., Ilyin, A.A., Babiy, M.Y., Lisitsa, V.V., Agapova, T.M.a\

Статьи в журналах

SPIE

Proceedings of SPIE - The International Society for Optical Engineering Volume 10035, 2016, Article number 100352E

100352E

Experimentally determined the influence of energy and pulse repetition rate of the femtosecond Ti: sapphire laser on the intensity of the spectral lines in the optical breakdown on the surface of an aqueous solution of CaCl2 and aqueous solutions of iron. The time dependence of the intensity of the continuous and line spectra of the plasma was obtained from the laser pulse energy. It is shown that by increasing the laser pulse repetition frequency from 20 Hz to 1000 Hz is observed up to 45% reduction of the emission line intensity Ca II (393.3 nm).