In the Kretschmann configuration, the bulk metal is in the form of a thin film of uniform thickness, bounded on one side by a high–refractive–index dielectric material and on the other side by a low–refractive–index dielectric material. A plane wave is launched in the optically denser dielectric material towards the metal film, in order to excite a surface–plasmon wave at the interface of the m...

BACKGROUND AND PURPOSE A new in vitro cerebrovascular occlusion model of the intracranial circulation was developed recently for testing thrombectomy devices. Using this model, we compared recanalization success associated with different modern endovascular thrombectomy approaches. MATERIALS AND METHODS Model experiments were performed in 4 thrombectomy test groups: 1) primary or direct Stent...

The usual full-field/scattered-field formulation is generalized to include a planar dielectric interface passing through the space. In this case, the source condition surrounding the central full-field region emits and captures waves consistent with scattering from a planar dielectric interface. Thus the wave in the outer scattered-field region represents just the part of the scattered wave tha...

A full-wave spectral-domain method with an asymptotic extraction technique is formulated for multilayer microstrip lines. This formulation provides a simple closed-form representation of the asymptotic part of the impedance matrix by using Chebyshev polynomial basis functions with the square-root edge condition and the asymptotic behavior of the Green’s function. The formulation is applied to o...

In this paper, we present an analysis for the radiation from a traveling-wave infinitely-extent sheet of monochromatic electric current that is placed at the interface between a conventional lossless dielectric and a lossless material possessing negative real permittivity and permeability. The field distributions and the direction of the Poynting vectors in both half spaces are discussed, and s...

We present a direct evidence of Bloch surface waves (BSWs) waveguiding on ultrathin polymeric ridges, supported by near-field measurements. It is demonstrated that near-infrared BSWs sustained by a silicon-based multilayer can be locally coupled and guided through dielectric ridges of nanometric thickness with low propagation losses. Using a conventional prism-based configuration, we demonstrat...

We derive the novel asymptotic solutions for the scattered field when a cylindrical wave is incident on a coated conducting cylinder with a thin lossy dielectric material. We show that the extended UTD (uniform geometrical theory of diffraction) solution and the modified UTD solution derived by retaining the second order term are uniformly applicable in the transition region near the shadow bou...

In this paper, a physically based dielectric model in microwave band for moist soils is developed to account for both the temperature and granulometric mineralogy of the soil. The generalized refractive mixing dielectric model (GRMDM) previously developed by V. L. Mironov et al. was used as a mean to determine the spectroscopic parameters for 5 soils which complex dielectric constant spectra we...

Introduction Knowledge of snow parameters is important for climatology, meteorology, hydrology, flood prevention and hydropower industry. Liquid water in a snow pack shows a dominant effect on reflection, absorption and transmission of electromagnetic waves especially in microwave region. Liquid water in snow plays a major role in metamorphism, mechanics and hydrology of snow, and in soil engin...

When a thin dielectric film placed between two semi-infinite media is irradiated with monochromatic plane waves, a standing wave is produced in the film. An analytical expression for the standing wave intensity within the film is derived. This expression is then expanded to include the effects of other dielectric films on either side of the film or an inhomogeneous film. Applications of these e...