title: Parametric excitation of X-waves by downconversion of Bessel beams in nonlinear crystals.
abstract: We predict that in traveling-wave degenerate parametric downconversion the Bessel beam pump stimulates the appearance of a nondiffracting X-wave from quantum noise amplification. Numerical simulation results of downconversion in ADP crystal are presented, along with preliminary experimental data.
authors.affiliation: Department of Quantum Electronics, Faculty of Physics, Vilnius University, Vilnius, Lithuania.
authors.forename: S
authors.initials: S
authors.lastname: Orlov
authors.forename: A
authors.initials: A
authors.lastname: Stabinis
authors.forename: V
authors.initials: V
authors.lastname: Smilgevicius
authors.forename: G
authors.initials: G
authors.lastname: Valiulis
authors.forename: A
authors.initials: A
authors.lastname: Piskarskas