Far-field spectral characterization of conical emission and filamentation in Kerr media

Daniele Faccio*, Paolo Di Trapani, Stefano Minardi, Alberto Bramati, Francesca Bragheri, Carlo Liberale, Vittorio Degiorgio, Audrius Dubietis, Aidas Matijosius

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

93 Citations (SciVal)


By use of an imaging spectrometer we map the far-field (θ-λ) spectra of 200-fs optical pulses that have undergone beam collapse and filamentation in a Kerr medium. By studying the evolution of the spectra with increasing input power and by using a model based on an asymptotic linear superposition of stationary wave modes (rather than the exact instantaneous solution), we are able to trace a consistent model of optical beam collapse highlighting the interplay between conical emission, multiple pulse splitting, and other effects such as spatial chirp.

Original languageEnglish (US)
Pages (from-to)862-869
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Issue number4
StatePublished - Apr 2005
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Far-field spectral characterization of conical emission and filamentation in Kerr media'. Together they form a unique fingerprint.

Cite this