Infrared thermography is becoming ever more popular in civil engineering/architecture mainly due to its noncontact character which includes two great advantages. On one side, it prevents the object, under inspection, from any alteration and this is worthwhile especially in the presence of precious works of art. On the other side, the personnel operate in a remote manner far away from any hazard...

Recently, the study of near- and below- threshold regime harmonics as a potential source of intense coherent vacuum-ultraviolet radiation has received considerable attention. However, the dynamical origin of these lower harmonics, particularly for the molecular systems, is less understood and largely unexplored. Here we perform the first fully ab initio and high precision 3D quantum study of th...

near infrared spectroscopy Jan Mehnert1,2, Christoph Schmitz1,3, Harald E. Möller2, Arno Villringer1,2,4,5, Hellmuth Obrig1,2,5 and Karsten Müller2 1Berlin NeuroImaging Center, Charité University Hospital Berlin, Germany/2MaxPlanck Institute for Human Cognitive and Brain Sciences Leipzig, Germany/3NIRx Medizintechnik GmbH, Berlin, Germany/4Berlin School of Mind and Brain, Humboldt University Be...

We describe a static aperture-coded, dispersive longwave infrared (LWIR) spectrometer that uses a microbolometer array at the detector plane. The two-dimensional aperture code is based on a row-doubled Hadamard mask with transmissive and opaque openings. The independent column code nature of the matrix makes for a mathematically well-defined pattern that spatially and spectrally maps the source...

We report experimental results of proton– and electron–beam–induced near–infrared (NIR) fluorescence in high–pressure Xe gas at room temperature. The investigated wavelength band spans the range 0.7 ≤ λ ≤ 1.8μm. In the previously unexplored range for λ > 1.05μm we have detected a broad continuum NIR fluorescence at λ ≈ 1.3μm that shifts towards longer wavelengths as pressure is increased up to ...

The physicochemical properties of the potassium neptunate K2NpO4 have been investigated in this work using X-ray diffraction, X-ray absorption near edge structure (XANES) spectroscopy at the Np-L3 edge, and low-temperature heat capacity measurements. A Rietveld refinement of the crystal structure is reported for the first time. The Np(VI) valence state has been confirmed by the XANES data, and ...

A number of researchers are attempting to develop a biosensor based on terahertz sensing. Key to the realization of any biosensor system is the access of the target molecules to the sensor. In the case of using terahertz spectroscopy, there are limitations due to high attenuation by water and sensitivity levels. In order to have a significant response at THz frequencies generally requires a min...