Code-multiplexed optical scanner
Abbreviated Journal Title
PHASE-CODE; DATA-STORAGE; HOLOGRAPHY; RETRIEVAL; GRATINGS; Optics
A three-dimensional (3-D) optical-scanning technique is proposed based on spatial optical phase code activation on an input beam. This code-multiplexed optical scanner (C-MOS) relies on holographically stored 3-D beam-forming information. Proof-of-concept C-MOS experimental results by use of a photorefractive crystal as a holographic medium generates eight beams representing a basic 3-D voxel element generated via a binary-code matrix of the Hadamard type. The experiment demonstrates the C-MOS features of no moving parts, beam-forming flexibility, and large centimeter-size apertures. A novel application of the C-MOS as an optical security lock is highlighted. (C) 2003 Optical Society of America.
"Code-multiplexed optical scanner" (2003). Faculty Bibliography 2000s. 3991.