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Metamaterial apertures for coherent computational imaging on the physical layer.

Publication ,  Journal Article
Lipworth, G; Mrozack, A; Hunt, J; Marks, DL; Driscoll, T; Brady, D; Smith, DR
Published in: Journal of the Optical Society of America. A, Optics, image science, and vision
August 2013

We introduce the concept of a metamaterial aperture, in which an underlying reference mode interacts with a designed metamaterial surface to produce a series of complex field patterns. The resonant frequencies of the metamaterial elements are randomly distributed over a large bandwidth (18-26 GHz), such that the aperture produces a rapidly varying sequence of field patterns as a function of the input frequency. As the frequency of operation is scanned, different subsets of metamaterial elements become active, in turn varying the field patterns at the scene. Scene information can thus be indexed by frequency, with the overall effectiveness of the imaging scheme tied to the diversity of the generated field patterns. As the quality (Q-) factor of the metamaterial resonators increases, the number of distinct field patterns that can be generated increases-improving scene estimation. In this work we provide the foundation for computational imaging with metamaterial apertures based on frequency diversity, and establish that for resonators with physically relevant Q-factors, there are potentially enough distinct measurements of a typical scene within a reasonable bandwidth to achieve diffraction-limited reconstructions of physical scenes.

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Published In

Journal of the Optical Society of America. A, Optics, image science, and vision

DOI

EISSN

1520-8532

ISSN

1084-7529

Publication Date

August 2013

Volume

30

Issue

8

Start / End Page

1603 / 1612

Related Subject Headings

  • Optics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1113 Opthalmology and Optometry
  • 0906 Electrical and Electronic Engineering
  • 0205 Optical Physics
 

Citation

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Lipworth, G., Mrozack, A., Hunt, J., Marks, D. L., Driscoll, T., Brady, D., & Smith, D. R. (2013). Metamaterial apertures for coherent computational imaging on the physical layer. Journal of the Optical Society of America. A, Optics, Image Science, and Vision, 30(8), 1603–1612. https://doi.org/10.1364/josaa.30.001603
Lipworth, Guy, Alex Mrozack, John Hunt, Daniel L. Marks, Tom Driscoll, David Brady, and David R. Smith. “Metamaterial apertures for coherent computational imaging on the physical layer.Journal of the Optical Society of America. A, Optics, Image Science, and Vision 30, no. 8 (August 2013): 1603–12. https://doi.org/10.1364/josaa.30.001603.
Lipworth G, Mrozack A, Hunt J, Marks DL, Driscoll T, Brady D, et al. Metamaterial apertures for coherent computational imaging on the physical layer. Journal of the Optical Society of America A, Optics, image science, and vision. 2013 Aug;30(8):1603–12.
Lipworth, Guy, et al. “Metamaterial apertures for coherent computational imaging on the physical layer.Journal of the Optical Society of America. A, Optics, Image Science, and Vision, vol. 30, no. 8, Aug. 2013, pp. 1603–12. Epmc, doi:10.1364/josaa.30.001603.
Lipworth G, Mrozack A, Hunt J, Marks DL, Driscoll T, Brady D, Smith DR. Metamaterial apertures for coherent computational imaging on the physical layer. Journal of the Optical Society of America A, Optics, image science, and vision. 2013 Aug;30(8):1603–1612.
Journal cover image

Published In

Journal of the Optical Society of America. A, Optics, image science, and vision

DOI

EISSN

1520-8532

ISSN

1084-7529

Publication Date

August 2013

Volume

30

Issue

8

Start / End Page

1603 / 1612

Related Subject Headings

  • Optics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1113 Opthalmology and Optometry
  • 0906 Electrical and Electronic Engineering
  • 0205 Optical Physics