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A novel optical voltage sensor is proposed by the use of single Fresnel rhomb bismuth germanate crystal. The optical sensing unit… Expand The multiplicatively regularized flnite-element contrast source inversion algorithm (MR-FEM-CSI) is used to solve the full… Expand A 94 GHz folded Fresnel reflector (FFR) for helicopter collision avoidance Radar is presented. The antenna system consists of a… Expand Soil moisture is an important parameter for understanding fluid flow modelling as well as the water uptake by plants roots. A… Expand A new high-silica zeolite, terranovaite, was recently found in cavities of Ferrar dolerites at Mt. Adamson (Northern Victoria… Expand When the Fresnel–Kirchhoff (FK) diffraction integral is evaluated exactly (instead of using the Fresnel approximation), the well… Expand We report the study of chromatic dispersion ripples in birefringent crystal-based optical interleavers. The simulation indicates… Expand The present work investigates a way to produce circular polarization in the millimeter spectrum, using a Fresnel rhomb. It… Expand The concept to use a slab as active element, working in zig- zag geometry, and also as Fresnel rhomb, seems to be rather… Expand Retarders based on total internal reflections are discussed. Quarterwave retardation can be obtained by a single reflection when… Expand