33 research outputs found

    The Echo of Extra-territorial:Research on the Works of the History of Modern Chinese Literature of Hong Kong and Taiwan from 1950s to 1980s

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    作为与中国大陆母体隔绝的“孤儿”,香港和台湾在特殊的历史语境下出版的中国新文学史著作不仅拥有各自的特性和共性,而且呈现出了与同时期的大陆新文学史不同的文学史书写形态。 本文以50年代到80年代港台出版的比较有代表性的十一部中国新文学史著作为基本研究的对象,从港台新文学的概念辨析、体例结构、作家选择、创作评价及观念形态等不同的侧面深入分析港台学者的这类新文学史著述,并主要由“政治的”与“审美的”两个维度分析和反思港台中国新文学史的建构,重点选取司马长风的三卷本《中国新文学史》、曹聚仁的《文坛五十年》及李辉英的《中国现代文学史》等为个案文本来展开具体的讨论,藉以展示这类史著在审美意识、民族主义及...As the "orphans" that isolate with the mainland China, the works of the history of Modern Chinese Literature of Hong Kong and Taiwan which are published in a special historical context not only have their own characteristic and similarity, but also present different writing forms from the mainland works of Modern Chinese Literature of the same period. This paper tries to analyze and introspect...学位:文学硕士院系专业:人文学院中文系_文艺学学号:1022009115195

    Fast numerical method for modelling one-dimensional diffraction gratings

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    International audienceBased on the generalised source method, a new method for calculating the light diffraction on one-dimensional dielectric diffraction gratings with an arbitrary profile is proposed. The method is an alternative to the widely used Fourier modal method because it possesses the same possibilities in defining different grating profiles; however, it has a significant advantage in calculating complex-shaped gratings because it requires many fewer mathematical operations. The applicability of the method is shown by comparing the calculation results by this method with the results obtained by the conventional methods of light diffraction calculation on the grating

    Light scattering calculations in planar non homogeneous dielectric media by means of light diffraction calculation on gratings

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    The generalized source method previously developed for the light diffraction calculation on periodic structures is applied for the light scattering calculation in non-periodic media. This greatly enlarges the domain of applicability of two-dimensional Fourier-methods in light scattering applications since the generalized source method has much less numerical complexity than widely used Fourier modal method. It is also demonstrated on numerical examples that for pure dielectric structures the use of lossy perfectly matching layers is not necessary for removing the effects of periodicity and taking of a large grating period is sufficient

    New fast and memory-sparing method for rigorous electromagnetic analysis of 2D periodic dielectric structures

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    International audienceA method is presented that performs the exact electromagnetic analysis of 2D periodic dielectric structures of arbitrary profile or index distribution and possibly large period. The generalized source method is used to formulate the problem of light diffraction in the form of a volume integral equation reduced to a linear equation system, which is solvable by known fast algorithms. The calculation time and required memory are linearly proportional to the total number No of considered diffraction orders instead of No3 typical for conventional methods. Numerical examples are provided to demonstrate the potential of the method for the analysis of complex periodic structures

    Efficient Fourier representation of complex crossed grating corrugations within the Generalized Source Method

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    In this work we provide a unified approach for description of a wide variety of complex shape crossed grating corrugations in terms of polygons and polyhedrons within the framework of the Generalized Source Method. We use analytical expressions for both spatial permittivity function Fourier decomposition, and normal vector field Fourier decomposition. The proposed approach is implemented on graphical processing units allowing one to obtain a significant calculation time gain

    Development of the Kramers-Kronig method for spectra of polarized IR radiation reflected from the surface of low-symmetry crystals

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    An extension of the Kramers-Kronig method for treatment of polarized infrared reflectance spectra from the face of low-symmetry crystals, where directions of principal dielectric axes depend on frequency, is proposed. It is shown, how to obtain the frequency dependencies of the complex reflectivity tensor components, using three reflectance spectra measured for different directions of linear polarization of the incident wave, when reflected wave is immediately sent to the detector. The problem is formulated in a form of the system of integral equations, and effective numerical technique is found for solving it. The question of the further recovery of the complex dielectric tensor on the base of the reflectivity tensor, is discussed. The case of the monoclinic crystals is considered in details. An example of the application of the extended Kramers-Kronig method to the reflectance spectra from the (ac)-face of the single-crystal bismuth oxide with the monoclinic lattice is given

    Rigorous S-matrix approach to the modeling of the optical properties of OLEDs

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    International audienceA new approach for the simulation of OLEDs based on a plane wave field expansion is proposed. Exact general formulae are given that allow for the calculation of their optical characteristics including losses in all layers in an arbitrary OLED structure. The S-matrix approach is used which ensures numerical stability of the algorithm. A simple way is proposed to take into consideration non-coherent reflections in a thick substrate. The validity of the model is demonstrated by comparing with experimental data
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