Efficient third-harmonic generation through tailored IR femtosecond laser pulse filamentation in air Academic Article uri icon


  • The process of third-harmonic generation during the filamentation of intense IR femtosecond laser pulses in air is investigated experimentally. It is shown that the introduction of a thin plasma string created by another femtosecond pulse, perpendicularly to the filament's path, dramatically reshapes the third-harmonic beam into a Bessel-like farfield distribution, while at the same time significantly enhances, up to 250 times, its conversion efficiency. 2009 Optical Society of America.

published proceedings

  • Optics Express

author list (cited authors)

  • Suntsov, S., Abdollahpour, D., Papazoglou, D. G., & Tzortzakis, S.

citation count

  • 48

complete list of authors

  • Suntsov, S||Abdollahpour, D||Papazoglou, DG||Tzortzakis, S

publication date

  • March 2009