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The spatio-temporal characterization of the electric field of an ultrashort laser pulse after passing through a diffractive optical element has been done. The expressions derived for the total diffraction field in the time and spectral domain are validated using spatially resolved spectral interferometry assisted by an optical fiber coupler (STARFISH).
We make a review of our main results in the field of femtosecond pulses diffracted by diffractive optical elements (DOEs). These results show how amplitude and/or phase DOEs can be used to change the spectral and temporal characteristics of the diffracted pulses. We experimentally demonstrate that shaped pulses diffracted by DOEs are useful in nonlinear optics or chemical applications.
Digital holography allows us to record and process digitally the complex amplitude distribution associated to diffracted light beams. In principle, phase-shifting techniques are the most efficient in terms of spatial resolution to record digital holograms. In this contribution we present a new method for recording on-axis digital holograms of 2D and 3D objects in a single shot, with parallel phase-shifting...
We demonstrate a compact all-diffractive setup for spectral synthesis. The system is composed of a circularly symmetric mask attached to a kinoform diffractive lens. Following diffraction-based analysis, a Fourier transform relation between the spatial mask function expressed in the squared radial coordinate and the axial spectral response of the system is found. Experimental results for slicing the...
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