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A novel device for spectrum synthesis is developed based on a spatially patterned kinoform diffractive lens (DL) . This system is studied for the case of non-uniform illumination. In the proposal, all optical elements have the same optical axis, simplifying alignment, and beam dispersion and focusing is performed exclusively in terms of diffraction. This all-diffractive nature guarantees that the...
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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