电磁波的传播就像光波的传播一样。
即使有今天的无线电设备,信息传播也需要好几分钟,有时候甚至好几个小时,因为无线电和光波都是以每秒186,000英里的有限速度传播。
Even with today's radio equipment, the messages will take minutes-sometimes hours-on their journey, because radio and light waves travel at the same limited speed of 186, 000 miles a second.
由于大气对光波传播引起的折射效应,使得光学雷达测量中产生折射误差。
The refraction effect of light-wave when it propagates in atmosphere brings refraction error to optic radar's measurement.
给出了公式推导,计算了扩散各向同性及扩散各向异性平面光波导的传播特性,并与其它方法所得结果进行了比较。
By using this method, the characteristics of propagation for diffused planar waveguides are calculated and compared with the finite element method.
应用傅里叶交换法计算了硅光波导中导模的传播常数。
The Fourier transformation is used to calculate the propagating constants of the Si waveguides.
首先用有限差分光束传播法模拟了器件的光波传播特性,然后进行了初步的实验验证。
The wave propagation characteristics of the splitter are numerically simulated by the finite difference beam propagation method and experimentally investigated.
本文利用微扰法,导出了克尔型非线性对称平板光波导t E模传播常数的近似计算公式。
A perturbation method has been developed to derive the approximate computing formulae of propagation constants for te modes on Kerr-type nonlinear symmetric slab optical waveguides.
建立了一种数值算法,从光波在湍流大气中传播的闪烁时间频谱的高频特征反演大气光学湍流谱。
A numerical algorithm is set up for the retrieval of optical turbulence spectrum from high-frequency temporal spectra of a light wave propagating through a turbulent atmosphere.
本文引入一种研究扩散光波导传播特性及设计计算的新方法——等效阶跃平板波导方法。
The equivalent step planar wave guide method is proposed to study the propagation properties and design of diffused planar wave guide.
本文报导了负胶-玻璃复合平面光波导传播特性的实验研究。
The experimental studies on the propagation characteristics of modes in the photoresist-glass planar optical waveguides are reported.
大气湍流对光波传播的影响主要是由于大气随机起伏的湍流引起折射率的随机起伏,破坏了光波的相干性。
Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium, which destroys the coherence of light-wave.
建立了扩散平板光波导的等效阶跃平板波导模型,进行了一系列的模拟计算,得出了一系列波导传播参量、结构参量与工艺参量之间的关系曲线。
The model was established, and a set of simulation has been done, and a series of relationship curves among the parameters of wave guide propagation, structure and technics are obtained.
该程序是用来计算三维光波传播的FDTD程序。
That the procedure was used to calculate the three-dimensional wave transmission FDTD procedure.
本文主要研究了对称三层平面光波导中光的传播问题。
In this paper, we mainly deal with the wave propagation in the symmetric three layers slab optical waveguide.
光波从光源传播时带着能量,并能传播很远的地方。
Light waves, spreading out from a source, carry energy and travel to distant place.
用坐标变换的倾斜坐标系中的广角光束传播法对光波导进行了分析。
A wide Angle beam propagation method in an oblique coordinate system (OCS wa BPM) based on coordinate transformation is used to simulate optical waveguides.
用坐标变换的倾斜坐标系中的广角光束传播法对光波导进行了分析。
Compared with conventional wide Angle BPM in rectangular coordinate system (RCS wa BPM), much better results are obtained with this method especially for waveguides with large tilted Angle.
空间分布着以太粒子,光就是在其中传播的能量波,以太粒子之间的作用规律决定了光波的各种属性。
The space is full of ether particles, the light is the energy wave spreading in which. The interaction between ether particles determines the various properties of light waves.
于是出现了用数值分析方法来分析集成光波导,其中,光束传播法就是分析光波导器件的一种好方法。
Then numerical algorithms are used to analyze integrated optical wave-guide and beam propagation method is a good method which is widely used.
由一个正方介质柱和两个圆介质柱构造一个二维正方复式晶格的光子晶体。应用平面波展开的方法研究了光波在其中的传播规律。
The photonic band structures of two-dimensional square compound lattices made of two kinds of dielectric cylinders are calculated by the plane-wave method.
本文研究光波(磁波)特殊随机多层介质中的传播。
Research on the Optical Properties of Dielectric Single-layers and Surface Defects of Multi-layers;
本文研究光波(磁波)特殊随机多层介质中的传播。
Research on the Optical Properties of Dielectric Single-layers and Surface Defects of Multi-layers;
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