Eigenmodes for capillary tubes with dielectric walls and ultraintense laser pulse guiding.
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.
Cros
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LPGP, CNRS UMR 8578, Université Paris XI, Bâtiment 210, 91405 Orsay cedex, France.
Courtois
C
C
Matthieussent
G
G
Di Bernardo
A
A
Batani
D
D
Andreev
N
N
Kuznetsov
S
S