2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/231460Using SEA TADPOLE, we directly measure the spatio-temporal field of diffracting ultrashort pulses with femtosecond temporal and micrometer spatial resolutions. Using a circular aperture and an opaque disk, we observe boundary wave pulses including their superluminal speeds.2 pages, 3 figures Submitted to Frontiers in Optics 2009 on May 25, 2009Opticstext