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planar dielectric
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  “planar dielectric”译为未确定词的双语例句
     Analysis of Discontinuities in Planar Dielectric Waveguide by Boundary-Element Method
     平板介质波导不连续性问题的边界元法分析
短句来源
     Analysis of Scattering Character of Discontinuities in A Symmetric Planar Dielectric Waveguide by Boundary-element Method
     对称平板介质波导不连续性散射特性的边界元分析
短句来源
     Spatial Solitons in Inhomogeneous Nonlinear Planar Dielectric Waveguides
     非均匀非线性平板介质波导中的空间孤子
短句来源
     FINITE-ELEMENT ANALYSIS OF PLANAR DIELECTRIC WAVEGUIDE DISCONTINUITIES
     平板介质波导不连续性问题的有限元分析
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     Analysis for Reflection and Radiation Characteristics of Tapered Planar Dielectric Surface Wave Antenna
     渐变平板表面波天线反射和辐射特性的分析
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  相似匹配句对
     Profiles of Ion-matrix Sheath around Planar Dielectric
     平面介质靶周围离子体鞘的特征
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     Spatial Solitons in Inhomogeneous Nonlinear Planar Dielectric Waveguides
     非均匀非线性平板介质波导中的空间孤子
短句来源
     Teaching on dielectric
     关于电介质的教学
短句来源
     (dielectric wavelength).
     (介质中波长)的基片仍是适用的。
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     Planar heat sink
     平面热沉
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  planar dielectric
In this paper, a nondestructive method for the non-contact characterization of non-planar dielectric objects is presented.
      
Interaction of guided modes and surface polaritons in a planar dielectric waveguide-semiconductor structure
      
Using the finite-difference time-domain method, we solve the problem of diffraction of a guided mode of a planar dielectric waveguide by an arbitrary-shaped body.
      
We compare the reflection characteristics of surface (guided) modes scattering from the abrupt termination of a planar dielectric waveguide or an optical fiber with an elongated cross section.
      
We study the dispersion characteristics of a planar dielectric waveguide in a magnetized plasma.
      
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Based on the definition of optical operator and the hypothesis that the optical operators of ideal optical elements are of unitarity and by way of the matrix representation of ideal optical elements, relationship between optical matrices and operators is derived from, thus finding out the optical operator representations of a variety of ideal optical elements. In a similar way, the optical matrix representation can be found through its converse relation with optical operators. As a result, the proof of equivalency...

Based on the definition of optical operator and the hypothesis that the optical operators of ideal optical elements are of unitarity and by way of the matrix representation of ideal optical elements, relationship between optical matrices and operators is derived from, thus finding out the optical operator representations of a variety of ideal optical elements. In a similar way, the optical matrix representation can be found through its converse relation with optical operators. As a result, the proof of equivalency relation between operator method and matrix method in optics is done. Also, the physical meaning of using optical operator method to describe linear optical system is revealed.Summary. In coordinate representation, the position and momentum operators are defined to satisfy the commutation relation [x,p]=i as follows:but in momentum representation, P = P, x=i-(?)/(?)b[x,p] = i. Assumingthat the operators of ideal optical elements are of unitarity, i. e. h+h = hh+=l and further h+xh = x', h + ph = p', and using optical matrix method, the paraxial light rays passing through a linear optical system can be described asThus the relationship between optical operators and optical matrices can be derived and expressed as For a given optical system, if A, B, C and D are given, the optical operator h can be found out by solving these equations. On the contrary, if h is given, the optical matrix can be found out as well from the same equations. In consequence, the equivalency relation between operator method and matrix method in optics is proved. All the ideal optical elements, except a section of homogeneous medium, have optical operators in the same form, i. e, h = exp( -ibx2) , but with different 6 for different elements. By reason of the operator h in a complex coaxial optical systemis composed of his of all elements in the system, h = IIh, in actuality.According to its physical meaning, h is named the point-spread operator,from which the optical transfer function OTF is derived.Fig.1 A ray passing through the linear optical systemFig.2 Propagation of a ray passing through a straight section of homogeneous mediumFig.3 Propagation of a ray passing through an ideal thin lensFig.4 Propagation of a ray passing through a spherical dielectric interfaceFig.5 Refraction at a planar dielectric interface inclined to Z axisFig.6 Reflection at a spherical mirrorFig.7 An optical system composed of two straight sections of homogeneous medium and a single lensFig.8 An optical system composed of two straight sections of homogeneous medium and a thin rectangular prism

本文从光学位置坐标算符和正则动量算符的定义以及理想光学元件的作用算符的幺正性假设出发,根据理想光学元件的矩阵表示导出光学算符(?)的表达式。又指出由(?)的表达式也可以得到相应的矩阵表示,从而证明了光学算符法与矩阵法的等效性。最后说明了光学算符(?)的物理意义。

A generalization of the second-order coupled-wave theory of diffractions on planar dielectric gratings are presented. The theoretical analysis is rigorously based on the static Maxwell's equations. Therefore, it is easy, in principle, to obtain accurate results by following the computational method given by the present paper.

本文在Moharam等人工作的基础上,对现有的平条纹面介质光栅衍射的二阶耦合波理论作了进一步推广。文中理论分析严格地建立在定态麦克斯韦方程组的基础之上。因此,原则上,按照本文所介绍的方法可以借助计算机得到具有任意所需精度的结果。 本文所研究的对象是平条纹面介质光栅。文中除要求光栅介质具有平面等值面及平面表面外,对光栅结构没有其它限制。本文允许照明光波以任意方向入射(特别是,允许入射面与光栅矢量面成任意夹角)。此外,本文还允许入射光具有任意的偏振状态,并以一系列琼斯矩阵表示光栅的衍射特性。这意味着本文把光栅也当作一种偏振元件来处理。

The dispersion relations of a planar dielectric waveguide used in Cerenkov free-electron lasers are derived out and the existence of a group of odd modes, which can be simultaneously excited with the previously considered even modes, is reported. Discussion on the dependence of the radiation frequency and single-pass gain on the system parameters, the dielectric thickness, the beam energy and the beam channel width, is presented and the effects of the odd modes on the Cerenkov free-electron laser...

The dispersion relations of a planar dielectric waveguide used in Cerenkov free-electron lasers are derived out and the existence of a group of odd modes, which can be simultaneously excited with the previously considered even modes, is reported. Discussion on the dependence of the radiation frequency and single-pass gain on the system parameters, the dielectric thickness, the beam energy and the beam channel width, is presented and the effects of the odd modes on the Cerenkov free-electron laser operation are investigated.

给出双介质片平面波导契伦科夫自由电子激光波导模式的色散关系,求出器件的单程增益并证明存在一组新的波导模式__奇模。讨论了器件的工作频率和单程增益随介质片厚度、电子束能量和电子束通道宽度的变化关系。还研究了这组奇模对器件的影响。

 
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