Circular waveguide standing-wave detector radio wave propagation in tropospheric radio duct

圆形 波导管驻波检测器对流层波导电波 传播

Optimization of the dielectric material distribution at the center of a two dimensional photonic crystal waveguide to adjust the energy band structure and obtain a photonic crystal waveguide structure for slow light propagation .

优化光子晶体波导中心介质分布，调控 波导导模能带结构得到光子晶体慢光 波导结构。

The experimental results exhibit that the polymer waveguide has a low propagation loss of 0.43 dB / cm and 0.51 dB / cm at a wavelength of 1.31 μ m and 1.55 μ m respectively for both TE and TM polarizations .

实验结果表明，对于TE和TM偏振，该聚合物 波导在1.31μm和1.55μm波长下分别有低达0.43dB/cm和0.51dB/cm的 传播损耗。

The FBC for connecting the subdomains on fictitious boundary is developed according to the actual field distribution in the waveguide to ensure the propagation of waves between adjacent subdomains . The relaxed algorithm is introduced to improve the iterative convergence .

文中从实际场分布出发，在划分区域的虚拟边界上给出了连接子域的吸收虚拟边界条件，并通过引入松弛算法，构建了一种能够用于分析 波导问题的松弛迭代区域分解法。

At present photoconductive switches and optical rectification are the two important and widespread methods of terahertz radiation generation . THz waveguide propagation is also very important in the development of THz technology .

光电导和光整流是目前应用较为广泛的两种重要的太赫兹辐射产生技术，太赫兹 波导 传输对太赫兹技术的发展也非常重要。

Analysis of Optical Effect in Intersectional Silicon Waveguide Switch by Beam Propagation Method

光束 传播法分析硅交叉 波导 光开关的光学效应

Earth-ionosphere waveguide radio wave propagation the iridescent internal layer of a mollusk shell .

地-电离层 波导电波 传播软体动物甲壳的内层，呈彩虹色。

Earth-ionosphere waveguide radio wave propagation for the production and transmission of radio broadcasts .

地-电离层 波导电波 传播广播制造和传送的地方。

Based on the coupled mode theory second harmonic generation ( SHG ) in the form of Cherenkov radiation from a channel waveguide has been investigated taking the propagation loss into account .

基于耦合模理论，分析了考虑 传输损耗的 条形 波导中切伦科夫（Cherenkov）二次谐波（SHG）的问题。

The main work can be listed as follows : 1 . The SOI rib waveguide mode propagation and loss characteristics were analyzed through the theoretical methods .

主要工作表现在以下几个方面：1.通过理论推导分析了SOI脊形 光 波导的模式 传输 特性和损耗特性。

Through analysis when the waveguide is excited by TM mode waveguide is working on LH propagation and waveguide propagates back-wave .

经分析，当 波导处于TM模式激励下工作在左手 传输频带，此时波导里传输的是返波。

Circular Waveguide Propagation Mode of Refraction Index Periodically Distributed in Radius

径向折射率周期性分布 波导 的 传播模式

By using effective index method ( EIM ) to calculate the transverse refractive index distribution of polymeric ridge waveguide 3-D light wave field propagation is successfully simplified into 2-D propagation .

利用有效折射率法计算聚合物脊形 波导的横向折射率分布，将三维光波场 传播简化为二维传播。

Analysis of Wide-Angle Crossed Waveguide by Wide-Angle Finite-Difference Beam Propagation Method Based on the Douglas Scheme

基于道格拉斯格式的宽角有限差分光束 传播法分析大角度交叉 波导

This method provides a fast and accurate solution of electro-magnetic wave propagated in magneto-optic rib waveguide the propagation constant and the electric field distribution of rib waveguide cross-section were obtained .

频谱指数法可以快速而准确地求解在磁光薄膜 波导中传播的电磁波方程，得到本征 模 的 传播常数及电磁场的截面分布状态。

The field distribution of the gain glass waveguide is analyzed with beam propagation method ( BMP ) a numerical approach to calculate the field added gain gene is introduced .

在采用 BPM法的基础上分析了玻璃 波导中场的分布，提出了考虑增益后的 光场数值模拟计算方法；

Terahertz ( THz ) quantum cascade lasers ( QCL ) is an important kind of semiconductor radiation sources . THz waveguide propagation is also very important in the development of THz technology .

半导体太赫兹（THz）量子级联激光器（QCL）是一种重要的THz辐射源，THz 波导 传输对THz技术的发展也非常重要。

In this dissertation we study the electron transport in THz QCL compare and discuss the waveguide property and investigate the propagation property of THz metal wire waveguide .

本文主要研究了THzQCL的电子输运和 波导特性，探索了THz金属丝波导的 传输机理。

Measurement Methods of Optical Waveguide Propagation Loss of Polymer Thin Films

有机聚合物薄膜光 波导 传输损耗的测量方法

Analysis of linearly tapered optical waveguide with the finite element beam propagation method

有限元光束 传输法分析锥形线性 波导

The waveguide propagation condition and analytical methods are deduced from Maxwell 's equations .

从麦克斯韦电磁方程组出发阐述了 光 波导 的 传输条件和理论分析方法。

Power-loss analysis of transitional waveguide by the finite-difference beam propagation method

基于有限差分光束 传播法的过渡 波导功耗分析

Study of Arrayed Waveguide Grating Multiplexer with Beam Propagation Method

基于光束 传输法的阵列 波导光栅复用器的研究

The investigation on the near-field acquiring observing and processing system for optical waveguide propagation mode

光波 导 传播模的近场采集、观测和处理系统

The SiO2 waveguide propagation loss of 0.1 dB / cm and fiber-waveguide coupling loss of 0.5 dB / point were measured out .

按 理论 计算设计制作了8×8矩阵光开关，测得 波导 传输损耗为0.1dB/cm，光纤- 波导耦合损耗为0.5dB/point。

This paper calculates VLF field strength using the waveguide mode theory based on earth-ionosphere waveguide propagation model .

基于地球-电离层 波导 的 传播模型，运用波导模式理论对甚低频电波的场强进行计算。

For the polymeric electro optic waveguide approximate expressions of propagation constant and loss coefficient are derived by using perturbation theory according to coupled mode theory of the ideal optic waveguide thereby complicated complex calculations for finding the solution of eigenvalue can be simplified to simple real calculations .

对于聚合物电光 波导，依据理想光波导耦合理论的微扰理论，推导 传播常数和损耗系数的近似表达式，从而将求解本征值的复杂复数运算简化成简单实数运算。

Optical Waveguide Finite Element Beam Propagation Method Analysis in Time Domain

光 波导有限元时域束 传输法分析

Optical effects in intersectional silicon waveguide switch are investigated by using beam propagation method .

运用光束 传播法对硅交叉 波导全内反射 光开关中的光学效应进行了详细分析。

Effect of the planar optical waveguide film-thickness on the propagation attenuation

平面 光波 导膜层厚度对 传播损耗的影响