Canhota, MiguelWeigand Talavera, Rosa MaríaCrespo, Helder M.2025-01-232025-01-232019-02-15Canhota, M., Weigand, R., & Crespo, H. M. (2019). Simultaneous measurement of two ultrashort near-ultraviolet pulses produced by a multiplate continuum using dual self-diffraction dispersion-scan. Optics Letters, 44(4), 1015. https://doi.org/10.1364/OL.44.0010150146-959210.1364/OL.44.001015https://hdl.handle.net/20.500.14352/115826We present a new method based on self-diffraction dispersion-scan (SD d-scan) that enables the simultaneous measurement of two distinct ultrashort laser pulses in a region where they spatially and temporally overlap. This situation can arise when sampling and focusing two different spatial portions of a single inhomogeneous beam onto a medium. We demonstrate this new dual SD d-scan method by simultaneously characterizing two intense broadband ultraviolet pulses at 400 nm, with durations in the 10 fs range, originating from two different spatial portions of a beam produced by a multiplate continuum (MPC).engjournal article1539-4794https://doi.org/10.1364/OL.44.001015https://opg.optica.org/ol/abstract.cfm?uri=ol-44-4-1015open access535Ultrafast opticsSupercontinuum generationUltrafast measurementsDiagnostic applications of nonlinear opticsUltrafast nonlinear opticsÓptica (Física)2209.10 láseres2209.13 Óptica no Lineal