title: Angle-resolved conical emission spectra from filamentation in a solid with an Airy pattern and a Gaussian laser beam.
abstract: Filamentation dynamics in fused silica are investigated using an Airy pattern and a Gaussian laser beam. The angle-resolved conical emission spectra are measured and compared with the predictions of several models. Our experimental observations are consistent with the X-waves model in both cases. This indicates that both laser beams spontaneously evolve into nonlinear X-waves and suggests a universal evolution of filaments in fused silica, regardless of the initial laser beam profile.
authors.forename: Cheng
authors.initials: C
authors.lastname: Gong
authors.forename: ZiXi
authors.initials: Z
authors.lastname: Li
authors.forename: LinQiang
authors.initials: L
authors.lastname: Hua
authors.forename: Wei
authors.initials: W
authors.lastname: Quan
authors.forename: XiaoJun
authors.initials: X
authors.lastname: Liu