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Measurement and noise characterization of optically induced index changes using THz interferometry
(AIP Publishing, 2004-05-24)
A Michelson interferometer designed for broadband single-cycle THz pulses is used to characterize optically induced index changes in semiconductors which result in submicron changes in optical path length. The interferometric ...
High-Q terahertz Bragg resonances within a metal parallel plate waveguide
(AIP Publishing, 2009-03-06)
One-dimensional (1D) Bragg waveguides are demonstrated at terahertz (THz) frequencies. Lithographically made 1D symmetric and asymmetric dielectric gratings on metallized high conductivity Si chips are incorporated within ...
Single-mode waveguide propagation and reshaping of sub-ps terahertz pulses in sapphire fibers
(AIP Publishing, 2000-04-10)
Waveguide propagation of sub-ps terahertz pulses in single-crystal sapphire fibers is reported. An incident THz pulse of approximately 0.6 ps duration undergoes considerable reshaping due to the absorptive and dispersive ...
Seasonal variability of evapotranspiration and carbon exchanges over a biomass sorghum field in the Southern U.S. Great Plains
(Elsevier BV, 2017)
The eddy covariance method was used to investigate carbon fluxes and evapotranspiration (ET) from a high biomass forage sorghum (Sorghum bicolor L.) field in the Southern U.S. Great Plains for three growing seasons ...
Temporal variability in aboveground plant biomass decreases as spatial variability increases
(Ecological Society of America, 2016)
Ecological theory predicts that diversity decreases variability in ecosystem function. We predict that, at the landscape scale, spatial variability created by a mosaic of contrasting patches that differ in time since ...
Variation in tick load among bird body parts: Implications for studying the role of birds in the ecology and epidemiology of tick-borne diseases
(Oxford University Press (OUP), 2020)
Wild birds play important roles in the maintenance and dispersal of tick populations and tick-borne pathogens, yet in field studies of tick-borne disease ecology and epidemiology there is limited standardization of how ...
Beyond forest cover: Land use and biodiversity in rubber trail forests of the Chico Mendes Extractive Reserve
(Resilience Alliance, 2009)
Among the strategies to promote sustainable tropical forest development around the world, the Federal Extractive Reserve System of Brazil is widely cited as an exemplary model. It is designed to protect rubber tapper ...
Diagnostic performance and diagrammatic manipulation in the physician’s folding almanacs
(Taylor & Francis, 2017-01-01)
Bodleian MS Ashmole 6 is one of around 30 known physician’s folding almanacs - small manuscripts of medical reference material in Latin, all (save one) made in England around the fifteenth century. The folding almanacs are ...
Introducing the visual language and process of design to beginning architectural engineering students
(American Society for Engineering Education, 2006-01-01)
The "Introduction to Architecture" course for freshmen architecture and architectural engineering students has been offered every fall semester since 1995. The fundamental course goals are to introduce the process of design, ...
Observing metamaterial induced transparency in individual Fano resonators with broken symmetry
(AIP Publishing, 2011-11-15)
Metamaterial induced transparency is demonstrated using individual split ring resonators with two gaps on opposite side. For the symmetric structure, only a low quality dipolar resonance is witnessed at a normal incidence ...