A 3D lattice of equally intense focus spots can be created using a 3D Dammann structure. We show 4 planar arrays each having 4x4 points using a single pattern.
© 2011 OSA
J. A. Davis, I. Moreno, J. L. Martinez, T. J. Hernandez, and D. M. Cottrell, "Creating 3D lattice patterns using programmable Dammann gratings," in Frontiers in Optics 2011/Laser Science XXVII, OSA Technical Digest (Optical Society of America, 2011), paper FThG3.
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