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David R. Smith
Researcher at Duke University
Publications - 891
Citations - 102589
David R. Smith is an academic researcher from Duke University. The author has contributed to research in topics: Metamaterial & Antenna (radio). The author has an hindex of 110, co-authored 881 publications receiving 91683 citations. Previous affiliations of David R. Smith include Brunel University London & Princeton University.
Papers
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Isotropic frequency selective surfaces made of cubic resonators
TL;DR: In this article, an isotropic modification of split ring resonators was used in the design of a cubic unit element invariant under the tetrahedral point symmetry group, and it was experimentally demonstrated that the transmission through such a FSS is angle and polarization independent.
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Cross-section comparisons of cloaks designed by transformation optical and optical conformal mapping approaches
TL;DR: This work discusses the merits of various TO strategies proposed for the long-sought ‘invisibility cloak’—a structure that renders opaque objects invisible and evaluates the cloaking capabilities of structures designed by the related CM approach, which makes use of conformal mapping to achieve index-only material distributions.
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Phaseless computational ghost imaging at microwave frequencies using a dynamic metasurface aperture.
TL;DR: By correlating the magnitude of the received signal with the structured intensity patterns, high-fidelity, phaseless imaging of sparse targets is demonstrated, and it is shown that fields from such an aperture approximately obey speckle statistics in the radiative near field.
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Reconciliation of generalized refraction with diffraction theory
Stéphane Larouche,David R. Smith +1 more
TL;DR: A formal equivalence is established between generalized refraction and blazed diffraction gratings, further discussing the relative merits of the two approaches.
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Two-Dimensional Dynamic Metasurface Apertures for Computational Microwave Imaging
TL;DR: In this paper, a single-port, two-dimensional dynamic metasurface aperture capable of generating a multitude of distinct illumination patterns at microwave frequencies is proposed, which consists of a printed cavity, with the upper conducting surface patterned with independently tunable metamaterial elements.