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The band structures and optical gain of tensile strained Ge/GeSiSn QWs with different Sn composition are investigated by using 6-band k.p method. The band lineups of Ge/GeSiSn are given. The hole energy dispersion curves of 80 Å/200 Å Ge/GeSiSn QWs are calculated. We find that optical gain will crease and the peak position will decrease when increasing Sn composition.
The analysis and the design of the power delivery network (PDN) is crucial in the real world of high-speed and high-performance on-board systems. In this context, the cavity model (where facing portions of power bus are considered electromagnetic resonant cavities) can be used to study the generation and propagation of noise. Given a real-world board's layout, one of the primary requirements for the...
Motion estimation (ME) is one of the bottlenecks in terms of the computational cost in a video encoder system. In this paper, we present a cost-effective method to calculate the "Vector Edge" of the current frame. We store all the vectors' information within a frame and put them in the Laplacian of Gaussian edge detection operator. It is similar to the image edge detection but we need to...
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