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24 April 2024

» arxiv » 1101.0734

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Three-Dimensional Light Bullets in Arrays of Waveguides
Stefano Minardi ; Falk Eilenberger ; Yaroslav V. Kartashov ; Alexander Szameit ; Ulrich Röpke ; Jens Kobelke ; Key Schuster ; Hartmut Bartelt ; Stefan Nolte ; Lluis Torner ; Falk Lederer ; Andreas Tünnermann ; Thomas Pertsch ;
Date:	4 Jan 2011
Abstract:	We report the first experimental observation of 3D-LBs, excited by femtosecond pulses in a system featuring quasi-instantaneous cubic nonlinearity and a periodic, transversally-modulated refractive index. Stringent evidence of the excitation of LBs is based on time-gated images and spectra which perfectly match our numerical simulations. Furthermore, we reveal a novel evolution mechanism forcing the LBs to follow varying dispersion/diffraction conditions, until they leave their existence range and decay.
Source:	arXiv, 1101.0734
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