辐射模

这样得到的有界波导具有一组离散模式，即传播模、泄漏模和PML模，并用后两种模的线性组合代替辐射模，从而可避免无穷数值积分。

The obtained bounded waveguide has a set of discrete modes , i.e. , the propagation modes , leaky modes and PML modes . And the radiation modes can be replaced by the latter two kinds of modes so as to avoid the infinite integral .

处理的课题包括导模和辐射模的耦合、两个导模的耦合、导模的衍射、TE-TM模转换，以及与此有关的光波导器件。

Topics treated here include coupling between guided mode and radiation modes , coupling between two guided modes , diffraction of guided mode , TE-TM mode conversion , and relative optical guided wave devices .

多层平面介质波导两类辐射模之间的正交关系

Advanced Orthogonal Condition between Two Types of Radiation Modes for Multilayer Dielectric Waveguides

对称平板波导辐射模的自由空间模近似及应用

Free Space Mode Approximation for Radiation Modes of a Slab Waveguide and Its Application

长周期光纤光栅中基模到辐射模耦合的数值分析

Numerical Analysis of Coupling from Core Mode to Radiation Mode in Long Period Fiber Gratings

多层平面介质波导辐射模

Radiation Modes of Multilayer Dielectric Waveguides

用波导产生倍频波时，如果倍频波进入辐射模区，仍然有相匹配问题。

Guided wave second-harmonic ( SH ) generation can not be phase matched automatically by Cerenkov radiation scheme .

无界平板声波导的模式由有限个传播模和具有连续谱的辐射模构成。

The modes of an infinite planar acoustic waveguide are composed by a finite number of propagation modes and continuous-spectrum radiation modes .

不同角度下，闪耀光栅发生辐射模耦合的波长有所不同。

The wavelength at which the strongest radiation-mode coupling occurs is related with the tilted angle of the tilted fiber Bragg grating .

理论推导出辐射模的归一化系数和长周期光栅中纤芯模与辐射模之间的耦合方程。

The normalization of the individual radiation mode is discussed and the coupled equations between the core mode and radiation modes are deduced .

进而，为了说明部分带隙对光的控制能力，这种光子晶体随后被用作过渡波导的包覆层，证明其能有效的抑制辐射模。

The photonic crystals with partial bandgap are then used as the cladding of a waveguide taper to reduce the radiation loss efficiently .

在此基础上，利用导模与辐射模的耦合模理论较系统地描述了棱镜耦合器的输入、输出特性。

On this basis input and output coupling properties have been described systematically by coupled mode theory of guided mode and radiation mode .

一种是由波导边界的畸变所导致的导模耦合至辐射模的损耗；

One is caused by the imperfections of the fiber , which leads to the coupling of modes from guided to radiation , especially in the single crystal fiber .

该算法提供了一个开放波导模型，其中的连续辐射模可以由离散的复模（准泄漏模）近似，从而极大地简化辐射模耦合的分析。

The mode solver also provides a new open waveguide model , in which the continuous radiation modes can be approximated by the discrete complex ( quasi-leaky ) modes ; hence the analysis of radiation mode coupling can be greatly simplified .

该理论可以全面地分析光纤光栅（含闪耀光纤光栅）中，光纤外包层折射率小于、等于、大于内包层折射率时，芯模到包层导模和辐射模复杂的耦合问题。

The complex mode theory can deal with the complicated mode coupling ( includes guided cladding and unguided radiation modes ) problems for the cases when the outer-cladding index of the fiber is smaller , equal and higher than that of the inner-cladding . 3 .

该理论基于光纤全矢量复域解模算法提供的开放波导模型，统一了光纤光栅中离散导模和连续辐射模在模耦合问题上的处理方法，从而极大地简化辐射模耦合的分析。

This theory is based on the open waveguide model offered by the complex mode solver , in which the treatments of discrete guided modes and continuous radiation modes in the mode coupling prob-lems are unified . Hence the coupling to the radiation modes is greatly simplified .

数值分析了纤芯模与辐射模之间耦合系数的特性，并给出了数值估计外部环境折射率高于石英包层折射率时长周期光栅的谐振波长的方法。

The properties of the coupling constants between the core mode and radiation modes are investigated . The numerical calculation of the resonance wavelengths of the long period fiber gratings is given , when the refractive index of ambient environment is higher than that of silica cladding .

基于电磁场理论，采用直接计算的方法证明了左手材料薄板波导中各个模式是相互正交的，即不同传播模之间、传播模与辐射模以及不同辐射模之间是相互正交的。

Based on the electromagnetic theory and by adopting the method of direct calculation , this paper proves that the modes of left-handed materials slab waveguide are orthogonal among each other , i.e. the fast waves , the slow waves , and the radiation modes are orthogonal among each other .

仿真结果表明该算法设计的脉冲不仅能很好地满足FCC辐射掩模的要求，而且具有较好的频谱利用率。

The simulation results show that the pulse designed by this algorithm can perfectly meet the requirement of FCC emission mask and has higher spectrum utilization efficiency .

GB/T13739-1992激光辐射横模鉴别方法聚丙二醇纤维鉴别试验方法

Testing method of transverse mode of laser radiation identification of polypropylene fiber

GB/T13739-1992激光辐射横模鉴别方法

Testing method of transverse mode of laser radiation

炭燃尽过程中结构和辐射特性的模化与分析

The Correlation of Structure and Radiative Properties of Burning Char : Modeling and Analysis

因此门操作对原子的自发辐射，腔模的损耗以及腔模中的热光子的存在都不敏感。

As the result , the gate operator is insensitive to the atomic spontaneous radiation , the cavity loss and cavity mode in the presence of thermal photons .

本方案采用双光子拉曼共振过程加快了操作速率，总操作时间远小于自发辐射和腔模衰变时间，因而在实验上是可行的。

In this scheme , two – photon Raman resonance process is used to increase the operation rate , and the total operation time is far less the time of spontaneous decay and cavity decay . Therefore this scheme is experimentally feasible .

由于考虑了辐射效应和高次模的影响，测量频率范围成功地扩展到了X波段。

By considering the influence of radiation effect and higher order modes , the measurement frequency range has successfully extended to X-band .

金刚石膜同步辐射X-射线掩模的研究进展

Study Progress of the Diamond Film Used as X-ray Mask

结论表明，除了光场各模光子引起原子的吸收和辐射外，各模的真空本底也引起原子的跃迁。

The conclusion shows that the vacuum background of all modes of the field causes the atomic transition besides the photons of the field .

因光输入场不对称产生高阶模，且光输入区的畸变而产生的辐射场与导模之间容易发生干涉，这些因素导致Y分支输出不均匀。

The uniformity of Y-branches is affected by high modes and interference effects . High modes are induced by asymmetry of input field and interference effects are due to the field radiated from distortions in the input section .

同步辐射X射线光刻中热辐射引起掩模畸变的研究

Study of Mask Distortion Caused by Thermo-Radiation in Synchrotron Radiation X-Ray Lithography