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Resonant grating-waveguide structures can exhibit far field intensity spectra with narrow bandwidth around predefined wavelengths. In this paper we studied the spatial electromagnetic field distribution along with the Poynting vector distribution in the various layers of a resonant grating-waveguide structure, when it is subjected to polarization phase and polar and azimuth angle manipulation. It...
This work presents the RF design considerations of electro-mechanical MEMS structures realized by the hybrid approach. Modeling of the MEMS devices capacitance in up state is different than for surface micromachined devices, due to significant fringing fields. RF MEMS demonstrators as switch and inductor have been modeled, simulated and RF characterized. The fabrication of the hybrid devices has been...
Nanocomposites were produced by infiltration of alumina preforms with a nickel-nitrate solution, followed by reduction and sintering. Multiple infiltration and reduction steps resulted in nanocomposites with varying Ni particle concentrations. The strain in the nickel particles was evaluated from X-ray diffraction, and correlated with the magnetic properties of the nanocomposites.
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