Optical Computing 3D Painting Art with Nonlinear Hologram in to Photopolymer

Optical Computing 3D Painting Art with Nonlinear Hologram in to Photopolymer

  1. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

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    Mustafa Umut Sarac submitted a new resource:

    Optical Computing 3D Painting Art with Nonlinear Hologram in to Photopolymer - Optical Computing 3D Painting Art with Nonlinear Hologram in to Photopolymer

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  2. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

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    I found below now,

    Science 10 January 2014:
    Vol. 343 no. 6167 pp. 160-163
    DOI: 10.1126/science.1242818
    REPORT
    Performing Mathematical Operations with Metamaterials
    Alexandre Silva1,*, Francesco Monticone2,*, Giuseppe Castaldi3, Vincenzo Galdi3, Andrea Alù2, Nader Engheta1,†
    + Author Affiliations

    1Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
    2Department of Electrical and Computer Engineering, University of Texas, Austin, TX 78712, USA.
    3Waves Group, Department of Engineering, University of Sannio, Benevento I-82100, Italy.
    ↵†Corresponding author. E-mail: engheta@ee.upenn.edu
    ↵* These authors contributed equally to this work.

    ABSTRACTEDITOR'S SUMMARY
    We introduce the concept of metamaterial analog computing, based on suitably designed metamaterial blocks that can perform mathematical operations (such as spatial differentiation, integration, or convolution) on the profile of an impinging wave as it propagates through these blocks. Two approaches are presented to achieve such functionality: (i) subwavelength structured metascreens combined with graded-index waveguides and (ii) multilayered slabs designed to achieve a desired spatial Green’s function. Both techniques offer the possibility of miniaturized, potentially integrable, wave-based computing systems that are thinner than conventional lens-based optical signal and data processors by several orders of magnitude.

    Received for publication 5 July 2013.
    Accepted for publication 12 November 2013.
     
  3. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

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    that is interesting also

    Nature Photonics 3, 211 - 215 (2009)
    Published online: 22 March 2009 | doi:10.1038/nphoton.2009.29

    Subject Categories: Imaging and sensing | Fundamental optical physics

    Imaging through nonlinear media using digital holography
    Christopher Barsi1, Wenjie Wan1 & Jason W. Fleischer1,2

    Abstract
    It is well known that one cannot image directly through a nonlinear medium, as intensity-dependent phase changes distort signals as they propagate. Indirect methods can be used1, 2, 3, 4, 5, 6, but none has allowed for the measurement of internal wave mixing and dynamics. Recently, the reconstruction of nonlinear pulse propagation in fibres was demonstrated by generalizing the techniques of digital holography7, 8 to the nonlinear domain9. The method involves two steps: (1) recording the total field (both amplitude and phase) exiting a nonlinear medium and (2) numerically back-propagating the wavefunction. Here, we extend this process to two-dimensional spatial beams and experimentally demonstrate it in a self-defocusing photorefractive crystal, giving examples in soliton formation, dispersive radiation and imaging. For known nonlinearity, the technique enables reconstruction of wave dynamics within the medium and suggests new methods of super-resolved imaging, including subwavelength microscopy and lithography. For unknown nonlinearity, the method facilitates modelling and characterization of the optical response.

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    Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
    Program in Applied and Computational Mathematics, Princeton University, Princeton, New Jersey 08544, USA
     
  4. infundibulum

    infundibulum Member

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    Holograms arem on my list of things to do, got to make a simple optical bench later this summer.
     
  5. marfa.tx

    marfa.tx Guest


    Seek Synthetic holography... No bench necessary