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Millimeter-wave spotlight imager using dynamic holographic metasurface antennas.

Publication ,  Journal Article
Yurduseven, O; Marks, DL; Fromenteze, T; Gollub, JN; Smith, DR
Published in: Optics express
July 2017

Computational imaging systems leverage generalized measurements to produce high-fidelity images, enabling novel and often lower cost hardware platforms at the expense of increased processing. However, obtaining full resolution images across a large field-of-view (FOV) can lead to slow reconstruction times, limiting system performance where faster frame rates are desired. In many imaging scenarios, the highest resolution is needed only in smaller subdomains of interest within a scene, suggesting an aperture supporting multiple modalities of image capture with different resolutions can provide a path to system optimization. We explore this concept in the context of millimeter-wave imaging, presenting the design and simulation of a single frequency (75 GHz), multistatic, holographic spotlight aperture integrated into a K-band (17.5-26.5 GHz), frequency-diverse imager. The spotlight aperture - synthesized using an array of dynamically tuned, holographic, metasurface antennas - illuminates a constrained region-of-interest (ROI) identified from a low-resolution image, extracting a high-fidelity image of the constrained-ROI with a minimum number of measurement modes. The designs of both the static, frequency-diverse sub-aperture and the integrated dynamic spotlight aperture are evaluated using simulation techniques developed for large-scale synthetic apertures.

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Published In

Optics express

DOI

EISSN

1094-4087

ISSN

1094-4087

Publication Date

July 2017

Volume

25

Issue

15

Start / End Page

18230 / 18249

Related Subject Headings

  • Optics
  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
  • 0205 Optical Physics
 

Citation

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Yurduseven, O., Marks, D. L., Fromenteze, T., Gollub, J. N., & Smith, D. R. (2017). Millimeter-wave spotlight imager using dynamic holographic metasurface antennas. Optics Express, 25(15), 18230–18249. https://doi.org/10.1364/oe.25.018230
Yurduseven, Okan, Daniel L. Marks, Thomas Fromenteze, Jonah N. Gollub, and David R. Smith. “Millimeter-wave spotlight imager using dynamic holographic metasurface antennas.Optics Express 25, no. 15 (July 2017): 18230–49. https://doi.org/10.1364/oe.25.018230.
Yurduseven O, Marks DL, Fromenteze T, Gollub JN, Smith DR. Millimeter-wave spotlight imager using dynamic holographic metasurface antennas. Optics express. 2017 Jul;25(15):18230–49.
Yurduseven, Okan, et al. “Millimeter-wave spotlight imager using dynamic holographic metasurface antennas.Optics Express, vol. 25, no. 15, July 2017, pp. 18230–49. Epmc, doi:10.1364/oe.25.018230.
Yurduseven O, Marks DL, Fromenteze T, Gollub JN, Smith DR. Millimeter-wave spotlight imager using dynamic holographic metasurface antennas. Optics express. 2017 Jul;25(15):18230–18249.
Journal cover image

Published In

Optics express

DOI

EISSN

1094-4087

ISSN

1094-4087

Publication Date

July 2017

Volume

25

Issue

15

Start / End Page

18230 / 18249

Related Subject Headings

  • Optics
  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
  • 0205 Optical Physics