title: Creating three-dimensional lattice patterns using programmable Dammann gratings.
abstract: We demonstrate the creation of a three dimensional (3D) lattice of focus spots using a 3D Dammann grating structure. Such a 3D lattice of focus spots can be used for probing 3D structures or for creating 3D photonic crystal structures in optically sensitive media. Experimental results are included where the patterns are encoded onto a programmable liquid crystal display. We demonstrate the generation of five planar arrays each having 6×6 points surrounding another set of four planar arrays each having 5×5 points with a single pattern.
authors: Department of Physics, San Diego State University, San Diego, California 92182-1233, USA.
authors: Jeffrey A
authors: JA
authors: Davis
authors: Ignacio
authors: I
authors: Moreno
authors: José Luis
authors: JL
authors: Martínez
authors: Travis J
authors: TJ
authors: Hernandez
authors: Don M
authors: DM
authors: Cottrell