Discrete interband mutual focusing in nonlinear photonic lattices

Discrete interband mutual focusing in nonlinear photonic lattices

We study nonlinear coupling of mutually incoherent beams associated with different Floquet-Bloch waves in a one-dimensional optically-induced photonic lattice. We demonstrate experimentally how such interactions lead to asymmetric mutual focusing and, for waves with opposite diffraction properties,...

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Veröffentlicht in:Optics express 2005-07, Vol.13 (14), p.5369-5376
Hauptverfasser: Rosberg, Christian, Hanna, Brendan, Neshev, Dragomir, Sukhorukov, Andrey, Krolikowski, Wieslaw, Kivshar, Yuri
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Sprache:eng
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Zusammenfassung:We study nonlinear coupling of mutually incoherent beams associated with different Floquet-Bloch waves in a one-dimensional optically-induced photonic lattice. We demonstrate experimentally how such interactions lead to asymmetric mutual focusing and, for waves with opposite diffraction properties, to simultaneous focusing and defocusing as well as discreteness-induced beam localization and reshaping effects.
ISSN:1094-4087
1094-4087
DOI:10.1364/OPEX.13.005369