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
Journal ArticleDOI
Wireless Power Transfer in the Radiative Near Field
Vinay R. Gowda,Okan Yurduseven,Guy Lipworth,Tomislav Zupan,Matthew S. Reynolds,David R. Smith +5 more
TL;DR: In this paper, a scheme for wireless power transfer (WPT) in the radiative near-field (Fresnel) region is presented, which is designed to focus microwaves to a diffraction-limited region where a detector can be positioned, achieving reasonably high power transfer efficiency over moderate distances.
Journal ArticleDOI
Toward Multispectral Imaging with Colloidal Metasurface Pixels
TL;DR: With this technique, the authors realize a multispectral pixel array consisting of six resonances between 580 and 1125 nm and reconstruct an RGB image with 9261 color combinations.
Journal ArticleDOI
Broadband gradient index microwave quasi-optical elements based on non-resonant metamaterials
TL;DR: Utilizing non-resonant metamaterial elements, it is demonstrated that complex gradient index optics can be constructed exhibiting low material losses and large frequency bandwidth.
Journal ArticleDOI
Numerical study of electromagnetic waves interacting with negative index materials
Pavel Kolinko,David R. Smith +1 more
TL;DR: This work investigates the expected transmission characteristics of a finite beam incident on negative index prisms and lenses and confirms the predicted superlens effect of an image formed by a planar slab with index n=-1, using two subwavelength slits as objects.
Journal Article
Negative index lens aberrations
David Schurig,David R. Smith +1 more
TL;DR: In this paper, the authors examined the Seidel aberrations of thin spherical lenses composed of media with refractive index not restricted to be positive, and found that spherical lenses possessing real aplanatic focal points are possible only with a negative index.