D
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
More filters
Proceedings ArticleDOI
Large and ultrafast nonlinear absorption of an air/gold plasmonic waveguide
TL;DR: In this paper, the authors investigate theoretically and experimentally the nonlinear propagation of surface plasmons on an air/gold interface which reveals large and ultrafast (∼100 fs) self-induced absorption.
Patent
High temperature superconductor
Philipp Braeuninger-Weimer,Nathan P. Myhrvold,Conor L. Myhrvold,Cameron Myhrvold,Clarence T. Tegreene,Roderick A. Hyde,Lowell L. Wood,Muriel Y. Ishikawa,Victoria Y.H. Wood,David R. Smith,John B. Pendry,Charels Whitmer,William Henry Mangione-Smith,Brian C. Holloway,Stuart A. Wolf,Vladimir Z. Kresin +15 more
TL;DR: A superconductor device includes a high superconductivity transition temperature enhanced from the raw material transition temperature as discussed by the authors, where a matrix material and a core material together create a system of strongly coupled carriers.
Proceedings Article
Frequency-Diverse Computational Polarimetic Imaging
TL;DR: In this paper, a frequency-diverse computational polarimetric imaging system is demonstrated at K-band (17.5-26.5 GHz) frequencies, which enables all-electronic data acquisition by means of a simple frequency-sweep and requires no mechanically moving apparatus or phase shifting circuits for imaging.
Proceedings ArticleDOI
Additive Manufacturing of a Conductive Polymer Cavity-Backed Metasurface Antenna for Computational Microwave Imaging
TL;DR: In this paper, a 3D printing technique was used to achieve additive manufacturing of a frequency-diverse metasurface antenna for a computational microwave camera performing 3D imaging at K-band frequencies.
Patent
Holographic aperture antenna configured to define selectable, arbitrary complex electromagnetic fields
Pai-Yen Chen,Tom Driscoll,Siamak Ebadi,John Desmond Hunt,Nathan Ingle Landy,Melroy Machado,Milton Perque,David R. Smith,Yaroslav A. Urzhumov +8 more
TL;DR: In this paper, a holographic aperture is configured to define at least two complex radiofrequency electromagnetic fields on the surface with tangential wavenumbers up to 2π over the aperture element spacing (k_apt=2π/a).