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We report a high-performance silicon-based hybrid plasmonic waveguide that consists of a silicon nano-rib loaded with a metallic nanowire. An ultra-deep-subwavelength mode area (λ2/4.5×105 ∼ λ2/7×103), in conjunction with a reasonable propagation distance (2.2 ∼ 60.2 μm), is achievable at a telecommunication wavelength of 1.55 μm, which indicates that this device outperforms its conventional hybrid...
The underground mining environment can affect radio signal propagation in various ways. Understanding these effects is especially critical in evaluating communications systems used during normal mining operations and during mine emergencies. One of these types of communications systems relies on Medium Frequency radio frequencies. This paper presents the simulation and measurement results of recent...
We propose a metasurface with reconfigurable reflection phase that can operate in high power microwave (HPM) applications. The structure relies on capacitor networks controlled by appropriately biased PIN diodes. Simulations reveal that the metasurface has a reflection phase tuning range of approximately 300 degrees with an associated change in capacitance of 2.7 pF.
Dual-modular femoral stems with exchangeable necks theoretically allow optimization of hip joint biomechanics via selective restoration of femoral anteversion, offset, and limb length. A potential disadvantage is the possible generation of metal ions and debris by fretting and crevice corrosion at the additional stem-neck interface. We present 2 cases of early-onset adverse inflammatory tissue reactions...
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