Spectrally resolved wedged reversal shearing interferometer
Posted on 05.04.2021 - 20:02
In this study, we introduce a technique to fully determine the spatio-temporal electric field E(x,y,t) of an arbitrary ultrashort pulse. By passing the beam through a wedged reversal shearing interferometer followed by a scanning Michelson interferometer, the field autocorrelation of the shearing interferograms is measured. The spectrum of the shearing interferograms is obtained after a Fourier transform by the Whittaker-Shannon sampling theorem, yielding the amplitude and wavefront information at every wavelength. With the addition of the phase information of a single point, we are able to directly reconstruct the spatio-temporal electric field E(x,y,t) of an arbitrary ultrashort pulse.
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Lam, Billy; Guo, Chunlei (2021): Spectrally resolved wedged reversal shearing interferometer. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.5243783.v2
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