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
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Journal ArticleDOI
An Apparatus to Control and Monitor the Para-D2 Concentration in a Solid Deuterium, Superthermal Source of Ultra-cold Neutrons
TL;DR: In this paper, an experimental technique to convert para-to ortho-deuterium molecules by flowing D2 gas through a cryogenic cell filled with paramagnetic hydrous ferric oxide granules was implemented.
Multipath Array Processing for Co-Prime and Under-Sampled Sensor Arrays
TL;DR: In this paper, the development of signal processing for co-prime sampled sensor arrays in towed array scenarios and in coprime active sonar signal designs motivated by dualities that exist between spatial arrays and temporal spectra is presented.
Proceedings ArticleDOI
Mechanical Design of the NSTX High-k Scattering Diagnostic
R. Feder,E. Mazzucato,Tobin Munsat,Hyeon K. Park,David R. Smith,R. Ellis,G. Labik,C. Priniski +7 more
TL;DR: The NSTX high-k scattering diagnostic as discussed by the authors measured small-scale density fluctuations by the heterodyne detection of waves scattered from a millimeter wave probe beam at 280 GHz and lambda=1.07 mm.
Proceedings ArticleDOI
Multispectral metasurface absorbers for optoelectronic devices
TL;DR: In this article, a fusion of bottom-up and top-down fabrication techniques was used for multispectral metasurfaces over wafer-scale areas exhibiting greater than 85 percent absorption, ∼100 nm linewidths from 580-1125 nm.
Posted Content
Holographic Metasurface Antennas for Uplink Massive MIMO Systems
Insang Yoo,David R. Smith +1 more
TL;DR: In this article, the authors proposed an uplink massive MIMO system using an array of holographic metasurfaces as a sector antenna, which can achieve the sum capacity close to that offered by the Rayleigh channel at 3.5 GHz.