The experimental results on investigation of the emission spectra of sea aerosol under action of femtosecond Ti:Sapphire laser pulses of 800 and 400 nm wavelengths are presented. It is shown that emission of a sodium line at 588.9 nm is observed during irradiation by the first harmonic of radiation, while fluorescence of the organic matters dissolved in sea water is excited by the second harmonic.
laser radiation, filamentation, femtosecond pulse, aerosol, optical breakdown, plasma, spectrum
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