Submitted for the MAR13 Meeting of The American Physical Society Terahertz and mid-infrared reflectance of epitaxial graphene CRISTIANE N. SANTOS, BENOIT HACKENS, IMCN/NAPS, Université catholique de Louvain, Belgium, FRÉDÉRIC JOUCKEN, ROBERT SPORKEN, LPME, Université de Namur (FUNDP), 5000 Namur, Belgium, JESSICA CAMPOS DELGADO, JEAN-PIERRE RASKIN, ICTM/ELEN, Université catholique de Louvain (U...

Ultra-refractory diborides are currently studied mainly as thermal protection materials for aerospace and military applications. However, their favourable properties (very high melting points and good thermo-mechanical properties at high temperatures) can be advantageously exploited to increase the operating temperature of thermodynamic solar plants in concentrating solar power systems. This pa...

Single phase cobalt ferrite (CoFe2O4) with nanoparticles of similar sizes (15.7-19 nm) was obtained by different synthesis methods: coprecipitation, ultrasonically assisted coprecipitation followed mechanochemical treatment, microemulsion and microwave hydrothermal synthesis. The CoFe2O4 samples have been studied using a variety characterization techniques: X-ray diffraction (XRD), Raman spectr...

We introduce a new infrared diagnostic to separate galaxies on the basis of their dominant infrared emission: stellar or nuclear. The main novelty with respect to existing diagnostics, is the usage of a broad band encompassing at the same time the 9.7μm Silicate absorption feature and one of the adjacent broad PAH (polycyclic aromatic hydrocarbon) features. This provides a robust estimate of th...

the potential of near infrared reflectance spectroscopy (nirs) as a fast method to predict the crude protein (cp) and moisture (m) content in fishmeal by scanning spectra between 1000 and 2500 nm using multivariate regression technique based on partial least squares (pls) was evaluated. the coefficient of determination in calibration (r2c) and standard error of calibration (sec) were 0.95 and 1...

The sensorial properties of Colombian coffee are renowned worldwide, which is reflected in its market value. This raises the threat of fraud by adulteration using coffee grains from other countries, thus creating a demand for robust and cost-effective methods for the determination of geographical origin of coffee samples. Spectroscopic techniques such as Nuclear Magnetic Resonance (NMR), near i...

Soil organic carbon (SOC) originates from a complex mixture of materials, and to better understand its role in soil functions, one must characterise chemical composition. However, current methods, such as solid-state 13C nuclear magnetic resonance (NMR) spectroscopy, are time-consuming expensive. Diffuse reflectance spectroscopy the visible, near infrared mid-infrared regions (vis–NIR: 350–2500...

Spectral reflectance of maple, chestnut and beech leaves in a wide range of pigment content and composition was investigated to devise a nondestructive technique for total carotenoid (Car) content estimation in higher plant leaves. Reciprocal reflectance in the range 510 to 550 nm was found to be closely related to the total pigment content in leaves. The sensitivity of reciprocal reflectance t...