Abstract:Because electronic devices (streak camera etc.) are too slow to measure temporal evolution of ultrashort optical pulses, many techniques were developed to retrieve temporal pulse shape. Most of them extract the temporal intensity either by assuming an analytic pulse shape (autocorrelation) or with the help of spectral measurements (including FROG' and SPIDER.') AU of these techniques rely on either interference or various nonlinear effect including second harmonic generation and optical Kerr effect. However, i… Show more
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