Code-multiplexed optical scanner

    Authors

    N. A. Riza;M. A. Arain

    Abbreviated Journal Title

    Appl. Optics

    Keywords

    PHASE-CODE; DATA-STORAGE; HOLOGRAPHY; RETRIEVAL; GRATINGS; Optics

    Abstract

    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.

    Journal Title

    Applied Optics

    Volume

    42

    Issue/Number

    8

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    1493

    Last Page

    1502

    WOS Identifier

    WOS:000181465900010

    ISSN

    1559-128X

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