Erping Li

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Rights IEEE Transactions on Very Large Scale Integration (VLSI) Systems © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this(More)
We demonstrate near field enhancement generation in silver nanoantenna-superlens systems via numerical modeling. Using near-field interference and global optimization algorithms, we can design nanoantenna-superlens systems with mismatched permittivities, whose performance can match those with matched permittivities. The systems studied here may find broad(More)
The ballistic regime gives the upper limit of an electron device performance. This paper proposes a fast and efficient model for calculating the current–voltage characteristic of a cylindrical nanowire within the framework of the non-equilibrium Green's function. Under certain assumptions, the calculation is simplified to a one-dimensional problem and the(More)
— Finite difference method is used to calculate the via-plate capacitances for vias with pad. Due to the symmetric structure, the solving domain is reduced to a rectangular ρ − z region. Boundary conditions along the region are discussed. Both barrel-plate and pad-plate capacitances are studied with various geometric parameters. The results could be used as(More)
However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and(More)
This paper reports the development of global FDTD models incorporated with a quasi-real anisotropic ionosphere consisting of magnetized cold plasmas. Compared to the existing global models utilizing simple conductivity ionospheric profiles, the algorithms reported in this paper can sufficiently extend the global-scale electromagnetic simulations to much(More)
Compared with conventional radio frequency (RF) shielding methods in which the conductive coating material encloses the circuits design and the leakage problem occurs due to the gap in such conductive material, non-contact RF shielding at a distance is very promising but still impossible to achieve so far. In this paper, a multi-folded transformation optics(More)
Nowadays traffic jam becomes a serious problem and also one of the major bottlenecks that restrict the city's development. ITS (Intelligent Transportation System) is proposed to deal with this problem, which generally combines computer science, information system, communication and control technologies. However, many cities in the world have become so(More)
An improved subcell FDTD model is developed and reported in this paper for efficiently simulating a super-thin current sheet. By fully incorporating in calculation the surface currents previously-ignored, the algorithm proposed herein thus represents a more general and precise approach for thin-sheet modeling than the traditional subcell scheme that has(More)
Former study shows that the graphene-embedded modulator can only work in TE mode while cannot achieve enough extinction ratio in TM mode. However, an optical modulator which can work in both TE mode and TM mode is required by the mode multiplexing technology. By simply growing a graphene-aluminum oxide metamaterial layer on the silicon waveguide, an(More)