Two-point optical coherency matrix tomography

    Authors

    A. F. Abouraddy; K. H. Kagalwala;B. E. A. Saleh

    Comments

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    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    BEAMS; ENTANGLEMENT; POLARIZATION; Optics

    Abstract

    The two-point coherence of an electromagnetic field is represented completely by a 4 x 4 coherency matrix G that encodes the joint polarization-spatial-field correlations. Here, we describe a systematic sequence of cascaded spatial and polarization projective measurements that are sufficient to tomographically reconstruct G-a task that, to the best of our knowledge, has not yet been realized. Our approach benefits from the correspondence between this reconstruction problem in classical optics and that of quantum state tomography for two-photon states in quantum optics. Identifying G uniquely determines all the measurable correlation characteristics of the field and, thus, lifts ambiguities that arise from reliance on traditional scalar descriptors, especially when the field's degrees of freedom are correlated or classically entangled. (C) 2014 Optical Society of America

    Journal Title

    Optics Letters

    Volume

    39

    Issue/Number

    8

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    2411

    Last Page

    2414

    WOS Identifier

    WOS:000334163800051

    ISSN

    0146-9592

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