title: Eigenmodes for capillary tubes with dielectric walls and ultraintense laser pulse guiding.
abstract: The properties of the eigenmodes of a capillary tube are examined in the context of ultrashort intense laser pulse guiding. The dispersion relation for the eigenmodes of a cylindrical hollow waveguide is derived and the family of eigenmodes EH(nus) is shown to be a solution of the wave equation up to the first order under the condition k(0)a >>1, where k(0) is the light wave number and a the capillary tube radius. The expressions of the fields for the eigenmodes are given at zero and first order of a small parameter equal to the ratio of the perpendicular to longitudinal wave number and the absorbed intensity at the wall is estimated.
authors.affiliation: LPGP, CNRS UMR 8578, Université Paris XI, Bâtiment 210, 91405 Orsay cedex, France.
authors.forename: B
authors.initials: B
authors.lastname: Cros
authors.forename: C
authors.initials: C
authors.lastname: Courtois
authors.forename: G
authors.initials: G
authors.lastname: Matthieussent
authors.forename: A
authors.initials: A
authors.lastname: Di Bernardo
authors.forename: D
authors.initials: D
authors.lastname: Batani
authors.forename: N
authors.initials: N
authors.lastname: Andreev
authors.forename: S
authors.initials: S
authors.lastname: Kuznetsov