ULTRASHORT LIGHT PULSES IN TRANSPARENT SOLIDS: PROPAGATION PECULIARITIES AND PRACTICAL APPLICATIONS

Blonskyi I., Kadan V. M., Pavlova S., Pavlov I., Shpotyuk O., Khasanov O. K.

UKRAINIAN JOURNAL OF PHYSICS, vol.64, no.6, pp.457-463, 2019 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 64 Issue: 6
  • Publication Date: 2019
  • Doi Number: 10.15407/ujpe64.6.457
  • Journal Name: UKRAINIAN JOURNAL OF PHYSICS
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.457-463
  • Keywords: femtosecond laser pulses, Kerr effect, femtosecond filaments, crystal silicon, self-focusing, self-phase modulation, WAVE-GUIDES, FEMTOSECOND, FILAMENTS
  • Middle East Technical University Affiliated: No

Abstract

The peculiarities of the femtosecond filamentation in Kerr media has been studied using a set of time-resoling experimental techniques. These include the temporal self-compression of a laser pulse in the filamentation mode, repulsive and attractive interactions of filaments, and influence of the birefringence on the filamentation. The propagation of femtosecond laser pulses at the 1550-nm wavelength in c-Si is studied for the first time using methods of time-resolved transmission microscopy. The nonlinear widening of the pulse spectrum due to the Kerr- and plasma-caused self-phase modulation is recorded.