2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91399We present a theoretical and experimental study of a photonic crystal based optical system in terms of weak values that map polarization states onto longitudinal spatial position and show fast and slow light behavior.2 pages, 3 figures, submitted May 7, 2003, and presented June 5, 2003 at CLEO/QELS 2003 conference, Baltimore, postdeadline paper QThPDB4Quantum Physicstext