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We propose a directional coupler at microwave frequencies based on spoof metal-insulator-metal (MIM) plasmonic structures. The spoof MIM structures consists of specially-designed metal gratings with finite thickness. The coupling length increases almost linearly with the wavelength. The full-wave simulations have been implemented in the microwave frequencies to verify the coupler.
Three-dimensional (3D) modeling is reported for CMOS active pixel image sensor with microlens and color filter layer. Process simulation is performed by Crosslight CSuprem while the optical effect is simulated by finite difference time domain technique and the electronic response by 3D drift-diffusion software APSYS. The opto-electronic responses are presented versus various power intensity and illumination...
Based on plasmonic metamaterials, we propose a plasmonic multi-directional frequency splitter with band-stop filters. Such a plasmonic splitter consists of three specially-designed metal gratings with finite thickness. Electromagnetic waves at the designed frequencies are confined and guided along the three grating structures and better isolation between different gratings is achieved with the band-stop...
As difficult-to-cut material with poor machinability, Machining of Inconel 718 at higher cutting speeds is expected to provide some relief from the machining difficulties. This paper investigate the possibility of high-speed cutting Inconel 718 by a series of cutting experiment. From the result, it presents that cutting force in high-speed zone is 30% lower than in conventional, at same time, the...
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