Spectral correlation of refocused collinear filaments using femtosecond pulses

Abstract

We experimentally demonstrate the observation of the spectral modulations due to spectral correlation of the white-light continuum generated from the collinear filaments using focused femtosecond laser pulses in BK7. These spectral modulations are used to estimate the temporal separation of the refocused collinear filaments as a function of the input laser power. © 2011 AOS.