We present a new methodology that obtains, in an analytical way, the complex electric field of ultrashort pulses. This methodology is based only on Fourier analysis of the frequency components of spectrally resolved interferometric collinear autocorrelations. We present an experimental demonstration of this technique and the results are compared with the conventional second-harmonic generation frequency-resolved optical gating technique.
© 2005 Optical Society of America
Ivan Amat-Roldán, Iain G. Cormack, Pablo Loza-Alvarez, and David Artigas, "Measurement of electric field by interferometric spectral trace observation," Opt. Lett. 30, 1063-1065 (2005)