Abstract
A design method is presented for an optical element that shapes an arbitrary collimated beam. The optical element consists of a pair of diffractive optical elements (DOEs). The outgoing beam is also collimated, and can have any desired intensity profile. The phase functions of the DOEs are computed by minimizing an appropriate cost function under an energy conservation constraint.
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Rubinstein, J., Wolansky, G. A diffractive optical element for shaping arbitrary beams. OPT REV 15, 140–142 (2008). https://doi.org/10.1007/s10043-008-0022-z
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DOI: https://doi.org/10.1007/s10043-008-0022-z