2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80570We study, both theoretically and experimentally, the Bragg scattering of light in optically-induced photonic lattices and reveal the key physical mechanisms which govern nonlinear self-action of narrow beams under the combined effects of Bragg scattering and wave diffraction, allowing for selecting bands with different effective dispersion.4 pages, 6 figuresPattern Formation and SolitonsOpticstext