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Angular surface solitons in sectorial hexagonal arrays

: Szameit, A.; Kartashov, Y.V.; Vysloukh, V.A.; Heinrich, M.; Dreisow, F.; Pertsch, T.; Nolte, S.; Tünnermann, A.; Lederer, F.; Torner, L.


Optics Letters 33 (2008), Nr.13, S.1542-1544
ISSN: 0146-9592
Fraunhofer IOF ()
wave-guide array; fused silica; interface

We report on the experimental observation of corner surface solitons localized at the edges joining planar interfaces of hexagonal waveguide array with uniform nonlinear medium. The face angle between these interfaces has a strong impact on the threshold of soliton excitation as well as on the light energy drift and diffraction spreading.