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    Université de Fribourg

    Efficient generation of Bessel beam arrays by means of an SLM

    Bowman, R. ; Muller, Nicolas ; Zambrana-Puyalto, X. ; Jedrkiewicz, O. ; Trapani, P. Di ; Padgett, M. J.

    In: The European Physical Journal - Special Topics, 2011, vol. 199, no. 1, p. 159-166

    We use a Spatial Light Modulator (SLM) to produce arrays of Bessel beams by using multiple axicon phase-masks on the SLM. This approach utilises the whole of the SLM, rather than just a thin annular region (which is the case if the SLM is in the far-field of the generated Bessel beams). Using the whole SLM rather than just an annular region means that the required intensity on the SLM is an order...