Media 1: Real-time intuitive spectrogram measurement of ultrashort optical pulses using two-photon absorption in a semiconductor Kensuke Ogawa 10.1364/OE.10.000262.m001 https://opticapublishing.figshare.com/articles/media/Media_1_Real-time_intuitive_spectrogram_measurement_of_ultrashort_optical_pulses_using_two-photon_absorption_in_a_semiconductor/4930532 Originally published in Optics Express on 11 March 2002 (oe-10-5-262) 2002-03-11 00:00:00 11 March 2002 ultrashort Optics Express semiconductor Real-time pulse oe spectrogram measurement media two-photon absorption