Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Metamaterial microwave holographic imaging system

Not Accessible

Your library or personal account may give you access

Abstract

We demonstrate a microwave imaging system that combines advances in metamaterial aperture design with emerging computational imaging techniques. The flexibility inherent to guided-wave, complementary metamaterials enables the design of a planar antenna that illuminates a scene with dramatically varying radiation patterns as a function of frequency. As frequency is swept over the K-band (17.5–26.5 GHz), a sequence of pseudorandom radiation patterns interrogates a scene. Measurements of the return signal versus frequency are then acquired and the scene is reconstructed using computational imaging methods. The low-cost, frequency-diverse static aperture allows three-dimensional images to be formed without mechanical scanning or dynamic beam-forming elements. The metamaterial aperture is complementary to a variety of computational imaging schemes, and can be used in conjunction with other sensors to form a multifunctional imaging platform. We illustrate the potential of multisensor fusion by integrating an infrared structured-light and optical image sensor to accelerate the microwave scene reconstruction and to provide a simultaneous visualization of the scene.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Comprehensive simulation platform for a metamaterial imaging system

Guy Lipworth, Alec Rose, Okan Yurduseven, Vinay R. Gowda, Mohammadreza F. Imani, Hayrettin Odabasi, Parker Trofatter, Jonah Gollub, and David R. Smith
Appl. Opt. 54(31) 9343-9353 (2015)

Metamaterial apertures for coherent computational imaging on the physical layer

Guy Lipworth, Alex Mrozack, John Hunt, Daniel L. Marks, Tom Driscoll, David Brady, and David R. Smith
J. Opt. Soc. Am. A 30(8) 1603-1612 (2013)

Design considerations for a dynamic metamaterial aperture for computational imaging at microwave frequencies

Timothy Sleasman, Michael Boyarsky, Mohammadreza F. Imani, Jonah N. Gollub, and David R. Smith
J. Opt. Soc. Am. B 33(6) 1098-1111 (2016)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved