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We rigorously determine the effect of parasitic loss on the achievable absorption enhancement in nanophotonic, plasmonic light trapping schemes. We show that, even in the presence of parasitic loss, opportunities exist to exceed conventional limits.
Plasmonics is an exploding new field of science and technology in which the flow of light can be molded at the nanoscale using metallic nanostructures. This newly found ability is rapidly impacting every facet of optics and photonics and is enabling a myriad of exciting new technologies. Semiconductor nanophotonics has also seen tremendous recent progress in the development of high performance light...
Precision processing of a variety of materials, ranging from metals to dielectrics, has been demonstrated with a high degree of reliability and repeatability, at industrially feasible processing speeds.
We develop a theoretical model to obtain the input-output characteristics of the single mode coherent emitter of surface plasmons (SPASER) and compare it to the prospect of surface plasmon emitting diodes (SPEDs).
Two-dimensional ultrasonically assisted grinding technique is proposed to achieve a high material removal rate and high surface quality simultaneously. In this technique, the work-piece is attached on the ultrasonic vibrator produced by bonding a PZT device on a metal elastic body, and the elliptic vibration is generated by the simultaneous creation of the longitudinal and bending vibration of the...
For the past 40 years, relentless focus on Moore's Law transistor scaling has delivered ever-improving CMOS transistor density. This paper discusses architectural and materials options which will contribute to the ultimate CMOS device. In addition, the paper reviews device options beyond the ultimate CMOS device.
In a complex product development environment designers and engineers demand simple but technically relevant methods to visualize knowledge. To address this issue, Lean Product and Process Development (LeanPPD) project, funded by the European Commission (NMP-2008–214090), development a new paradigm based on lean thinking, providing a knowledge-based environment to support engineering decision taking...
We can reduce the grounding resistance of grounding object by reducing the resistivity of the soil, increasing the size of the area of ground, selecting the appropriate shape of the grounding (depth of the vertical ground) and increasing the number of vertical ground, etc. However, when the spot area is limited and soil resistivity is high, traditional grounding technology is difficult to achieve...
The cabin of train, ship and aircraft and other open metal cavity is mostly a cavity with a window on it. There are controllers, signal sources or other sensitive electronic equipments in it. In this paper the electromagnetic coupling characteristics through the window of the metal cavity being struck by lightning was studied. The model chosen is a cavity with a window on it. And the Finite-Difference...
Any metal under irradiation is the example of the open, nonlinear system that is far away from thermal equilibrium. A theoretical approach to the void size and defect concentration evolution in irradiated metals is developed via formalism of Poincare and as function of irradiation conditions and metal properties. Due to nonlinear feed-back, there are three qualitatively different ways of evolution...
A new proposed gas sensor was built to achieve high field with the tip type electrode in a standard CMOS process. The increase of electric field will enhance the chemical reaction rate dramatically. Beyond the conventional chemical sensors with heating power to achieve a high sensitivity, we proposed a total new sensing mechanism with the short distance of electrodes which includes the different distance...
Hot uniaxial pressing of 6082 Al-alloy and AZ31 magnesium alloy is applied in Al-Mg foil-foil technique symmetrical arranged. However, delamination is a major limitation of lamellar composite structure, an emerging methodology introduced with micro laminated and/or delocalized nano particulate interphase. Mitigation of crack as well as toughening mechanisms is an objective. Parametric study (temperature,...
Beyond the conventional chemical sensors with heating power, we proposed a total new magnetic-catalytic sensing mechanism without heating which includes the original sensing material and also magnetic-catalytic with even higher sensitivity than before. A magnetic material in sol-gel method and a prepared solution of sol-gel SnO2 is mixed at SnO2 : Fe3O4 = 3 : 1. The samples with several pH conditions...
In this paper, we review recent progresses on metal oxide resistive switching memory (RRAM). RRAM device design is explored from different aspects including oxide/electrode materials, uniformity issues, and scaling down to single-digit-nm regime. We studied the stochastic nature of resistive switching in metal oxide RRAM and revealed the physics behind switching parameter variations in HfOx-based...
In order to study how the Blank Holder Force (BHF), Die Radius and Drawbead (with or without) affect the stamping performance, this paper takes the automobile oil pan as the example, simulates the drawing procedure on Dynaform. And then analyzes the FLD (Forming Limit Diagram), Thickness or thinning figure and forming results. Finally, we get the optimal BHF and die radius.
The electric and magnetic properties of the magnetically soft Fe-Si-B-Nb-Cu alloy (Finemet), as a candidate on the absorber at microwaves, have been studied in the frequency range from 0.2 to 10 GHz. Measurements were achieved with the use of the coaxial line technique, where the scattering parameters at broadband frequency range were determined. In this method, using the signal flow graph representation,...
The angular distribution of the metal and gaseous ion flow from vacuum arc plasma has been investigated. A Mevva-type ion source and a Time-of-Flight (TOF) mass-spectrometer were used. The experiments were performed using a range of different cathode materials, including C, Al, Zn, Cu, Ti, Co, Cr, W, Pb, Cu0.7Cr0.3, W0.4Co0.17C0.43, and Zn0.4Pb0.6, over a range of vacuum arc discharge parameters....
First-principle analysis of the band structure for dilute-As GaN1−xAsx semiconductor was carried out, and the finding showed the direct bandgap properties of this alloy covering the entire visible spectral regime applicable for new visible emitters.
Nanolasers made from III–V active materials and metal-clad cavities have attracted research interest because of the small volume possible with metal nanocavities.1 Proposed applications include intrachip optical interconnects and optical sensors. The metal-clad nanocavities are one of several cavity approaches being studied, and differ from dielectric and semiconductor nanocavities in their high optical...
The need for faster, smaller, more reliable and efficient products has resulted in increased heat generated in microelectronic components. Removal of the heat generated is an important issue in electronic packaging. Therefore, a novel Nano-Thermal Interface Material was developed to improve this. This paper aims at studying the thermal performance of the new nano-structured polymer-metal composite...
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