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In the FP7 project CONSORTIS, a dual-band passive imager is being developed for security applications. The latter is based on bolometer based kinetic inductance detectors operating at two frequency bands to improve the collection of thermal information. These bolometric detectors rely on a frequency selective absorber (FSA) to achieve the two bands. In this contribution, we describe the optimization...
We discuss the improved performance of a microfluidic cell for chemical detection. The sensitivity is increased by placing the microfluidic cell in photonic crystal cavity. The insecticide methomyl is used as an exemplary chemical.
This paper investigates the limit of detection of the spectral fingerprints of a material to be identified by terahertz spectroscopy, when the material is bare or concealed by clothes. After a theoretical study to determine the minimum observable peak amplitude versus the refractive index and the coefficient of absorption of the sample material, we discuss the case of detecting the absorption peaks...
We propose electrical THz detection based on topological insulators which have Dirac electrons. Among them, multi-layered topological insulator system is expected to stack topological interface states and hence enhancement of photo absorption is likely to be realized. GeTe/Sb2Te3 interfacial phase change memory materials (iPCM) were used and THz-induced electrical response was measured. As a result,...
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