426 citations · 1.4k across the 15 of their papers we have counts for
15 papers
An Analysis of Beamed Wireless Power Transfer in the Fresnel Zone Using a Dynamic, Metasurface Aperture
David R. Smith, Vinay R. Gowda, Okan Yurduseven +4
Wireless power transfer (WPT) has been an active topic of research, with a number of WPT schemes implemented in the near-field (coupling) and far-field (radiation) regimes. Here, w…
Flow stabilization with active hydrodynamic cloaks
Yaroslav A. Urzhumov, David R. Smith
We demonstrate that fluid flow cloaking solutions based on active hydrodynamic metamaterials exist for two-dimensional flows past a cylinder in a wide range of Reynolds numbers, up…
Low-loss directional cloaks without superluminal velocity or magnetic response
Yaroslav Urzhumov, David R. Smith
The possibility of making an optically large (many wavelengths in diameter) object appear invisible has been a subject of many recent studies. Exact invisibility scenarios for larg…
Electronically reconfigurable metal-on-silicon metamaterial
Yaroslav Urzhumov, Jae Seung Lee, Talmage Tyler +5
Reconfigurable metamaterial-based apertures can play a unique role in both imaging and in beam-forming applications, where current technology relies mostly on the fabrication and i…
Magnetic superlens-enhanced inductive coupling for wireless power transfer
Da Huang, Yaroslav Urzhumov, David R. Smith +2
We investigate numerically the use of a negative-permeability "perfect lens" for enhancing wireless power transfer between two current carrying coils. The negative permeability sla…
Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves
Yaroslav Urzhumov, Nathan Landy, David R. Smith
We propose a generalization of the two-dimensional eikonal-limit cloak derived from a conformal transformation to three dimensions. The proposed cloak is a spherical shell composed…