Ultrashort-pulsed truncated polychromatic Bessel-Gauss beams | Zendy

R. Grünwald | Zendy; Michael Bock | Zendy; Volker Kebbel | Zendy; S. Huferath | Zendy; U. Neumann | Zendy; G. Steinmeyer | Zendy; Gero Stibenz | Zendy; Jean-Luc Néron | Zendy; Michel Piché | Zendy

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Ultrashort-pulsed truncated polychromatic Bessel-Gauss beams

Author(s) -

R. Grünwald,

Michael Bock,

Volker Kebbel,

S. Huferath,

U. Neumann,

G. Steinmeyer,

Gero Stibenz,

Jean-Luc Néron,

Michel Piché

Publication year - 2008

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.001077

Subject(s) - optics , axicon , bessel function , apodization , physics , point spread function , optical transfer function , aperture (computer memory) , gaussian , laser , laser beams , quantum mechanics , acoustics

Spatio-spectral and spatio-temporal transfer and intensity propagation of truncated ultrashort-pulsed Bessel-Gauss beams were investigated. Extended needle-shaped focal zones were generated using a compact setup with a reflective small-angle axicon and self-apodized truncation by an adapted aperture. Spectral maps of Bessel-Gauss beams were analyzed on the basis of higher order statistical moments. Compared to focused pulsed Gaussian beams with their spectrally dependent propagation, an ultrabroadband spatio-spectral transfer function was detected over Rayleigh ranges exceeding 10 cm. These results indicate favorable pseudo-nondiffracting characteristics not only from the point of view of spatial propagation but also with respect to the spectral and temporal stability.

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