title: Unified description of Bessel X waves with cone dispersion and tilted pulses.
abstract: We study Bessel X waves with cone dispersion propagating in free space and dispersive media. Their propagation features find simple explanation when viewed as cylindrically symmetric versions of the so-called tilted pulses. All previously reported cases of suppression of normal material group velocity dispersion by using angular dispersion in tilted pulses, pulsed Bessel beams, and Bessel X waves are compared and presented in a unified way. We show that stationary, spatiotemporal localized Bessel X-wave transmission is also possible in the anomalous dispersion regime.
authors.affiliation: Departamento de Física Aplicada, ETSIM, Universidad Politécnica de Madrid, Rios Rosas 21, 28003 Madrid, Spain.
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Porras
authors.forename: Gintaras
authors.initials: G
authors.lastname: Valiulis
authors.forename: Paolo
authors.initials: P
authors.lastname: Di Trapani