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Appl Opt. 1996 Feb 1;35(4):599-602. doi: 10.1364/AO.35.000599.

Nondiffracting interference patterns generated with programmable spatial light modulators.

Abstract

Nondiffracting beams are of interest for optical metrology applications because the size and shape of the beams do not change as the beams propagate. We have created a generating pattern consisting of a linear combination of two nondiffracting patterns. This pattern forms a nondiffracting interference pattern that appears as a circular array of nondiffracting spots. More complicated multiplexed arrays are also constructed that simultaneously yield two different nondiffracting patterns. We generate these Bessel function arrays with a programmable spatial light modulator. Such arrays would be useful for angular alignment and for optical interconnection applications.

PMID:
21069044

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