Self-referenced Spectral Interferometry for Single-Shot Measurement of sub-5-fs Pulses

Rev Sci Instrum. 2015 Nov;86(11):113106. doi: 10.1063/1.4936289.


We demonstrate a novel approach for the extension of self-referenced spectral interferometry to the temporal characterization of few-optical cycle pulses. The new experimental setup is characterized by low dispersion and a collinear geometry. 4-fs pulses have been characterized by performing single-shot measurements, with high dynamic range on a broad temporal region. An independent measurement of the pulse duration, obtained by using attosecond streaking, allowed us to cross-check the experimental technique.