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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.

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Design and fabrication of a metamaterial gradient index diffraction grating at infrared wavelengths.

TL;DR: The design, fabrication and characterization of an artificially structured, gradient index metamaterial with a linear index variation of Δn ~ 3.0 is demonstrated, which has the potential to enable compact infrared diffractive and gradient index optics, as well as more exotic transformation optical media.
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Overcoming phase mismatch in nonlinear metamaterials [Invited]

TL;DR: In this article, the authors present an overview of phase matching solutions for wave-mixing processes in nonlinear metamaterials and divide them into conventional techniques (anomalous dispersion, birefringence, and quasi-phase matching) and metamatter-inspired techniques (negative-index and index-near-zero phase matching).
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Overview of physics results from the conclusive operation of the National Spherical Torus Experiment

S.A. Sabbagh, +179 more
- 01 Oct 2013 - 
TL;DR: The National Spherical Torus Experiment (NSTX-U) as mentioned in this paper has been used to test physics theories for next-step tokamak operation, including ITER.
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Application of range migration algorithms to imaging with a dynamic metasurface antenna

TL;DR: The range migration algorithm is adapted for use with dynamic metasurfaces and a preprocessing step is proposed that ultimately allows for expression of measurements in the spatial frequency domain, from which the fast Fourier transform can efficiently reconstruct the scene.
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Transformation optics with photonic band gap media.

TL;DR: PC cloaks and other TO devices operating at visible wavelengths can be constructed from optically transparent substances such as glasses, whose attenuation coefficient can be as small as 10 dB/km, suggesting the TO design methodology can be applied to the development of optical devices not limited by the losses inherent to metal-based, passive metamaterials.