证明了波导的导模之间的正交关系。
提出图解法决定导模的解。
A graphical method is proposed to determine the guided modes.
得到了满足鉴别要求的导模共振滤光片结构。
The structure of GMRF which satisfies the requirements for authentication applications was obtained.
平板光子晶体存在一个最佳厚度，使其导模带隙最大。
A photonic crystal slab has an optimal thickness, which makes the photonic band gap maximum.
结果表明，作为调制通道的导模阶数越低，调制效率越高。
Results show that the lower guide mode acting as the modulation channel is, the larger modulation index can be obtained.
用导模传输分析法验证了计算公式和重叠成像规律的正确性。
And the guided-mode propagation analysis was used to confirm the analytical results.
测得的波导参数在测量误差范围内与用导模法测得的数据一致。
The measured parameters of the waveguide agreed with data measured by using guided mode method in measuring error ranges.
并对导模共振与光栅厚度、基底厚度以及入射角的关系作了讨论。
We also discussed the relations among the guided mode resonance, grating layer thickness, substrate thickness, and the incident Angle.
举例讨论了导模模式的增益（或损耗）与结构参数和偏振的关系。
In this paper an improved and generalized formula for calculating the complex modal refractive indeces of guided modes is presented.
平面波超元算法的结果表明：(1)平板光子晶体导模中存在带隙。
The results of the plane wave method with super cell shows: (1) photonic band gaps exist in the guided modes of the photonic crystal slabs.
本文将准导模的概念用于等效电流法来求取单模光纤的模耦合损耗。
The concept of quasi-guided mode is applied in equivalent current method to calculate the loss of a single mode fiber caused by mode conversion.
依据有效折射率的不同，部分带隙中的空气-导模将以不同的形式存在。
For different values of the effective refractive index, the air-guided modes can exist in different forms in part of PBGs.
双面金属包覆波导高阶导模对聚合物薄波导层的折射率变化比低阶导模更敏感。
High order guided mode in double metal-cladding waveguide is more sensitive to the refractive index variation of the polymer guiding layer by comparing with low order guided mode.
导模共振对入射波参数和光栅参数极为敏感，具有窄带效应，可用来制作窄带滤波片。
When guided mode resonance occurs, the incident wave parameters and grating parameters are very sensitive. It has a narrow-band effect and can be used to fabricate narrow-band filters.
应用等效折射率模型对折射率导模光子晶体光纤的群速度色散特性进行了详细的讨论。
The group velocity dispersion properties of photonic crystal fiber (PCF) were investigated in detail by equivalent index model.
讨论了M层克尔型非线性介质平板波导中TE波的传输特性，并给出其导模的解析解。
Transmission properties of TE wave in the nonlinear Kerr media plate with M layers have been discussed and the analytical solution of waveguide mode is also given.
一阶振荡导模的传播常数随着平板厚度的减小而增加，此性质与传统的金属包覆波导不同。
The propagation constant increases with decreasing slab thickness for the first-order oscillating mode, which is different from that in traditional metal-cladding waveguides.
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.
弱调制介质光栅可等效为平板波导，经其衍射的高级次子波与波导模式耦合时，形成导模共振。
Weak modulated dielectric grating can be equivalent to planar waveguide. When it diffracted high-order spatial sub-wave is coupled with waveguide mode, a guided mode resonance is formed.
二维时域有限差分仿真结果表明，在大部分光子晶体波导导模的频谱范围内，传输效率高于98%。
The simulation results show that the power transmission efficiency is over 98% in a large part of the frequency range of the guided mode of photonic crystal waveguide.
为获得性能优良的三基色窄带滤光片，提出了一种基于减反射薄膜波导光栅结构的导模共振滤光片。
A guided-mode resonant filter (GMRF) based on the structure of anti-reflection (ar) thin film waveguide is proposed to realize three-primary-color filter with narrow-band.
本文用适当的多项式函数近似扩散光波导的高斯折射率分布函数，推导了导模有效折射率的解析形式渐近解。
The Gaussian index profile of a diffused optical waveguide is approximated by an appropriate polynomial, and the asymptotic solutions of the mode efficient index is derived in a analytical form.
特别是波导型光栅结构的导模共振现象被提出及广泛关注以后，这类光学元件就越发受到各国研究人员的青睐。
Especially, after guided-mode resonance in waveguide grating was presented and studied more detailed, this kind of optical elements has attracted a large of researchers.
另外，对称金属包覆波导的导波层厚度还可以扩展至亚毫米甚至毫米量级，并因此能够容纳模序数上千的高阶导模。
Besides, in the SMCW structure, the thickness of the guiding layer can be enlarged to submillimeter scale and can contain ultrahigh order guided modes with mode index of over 1000.
例如，对均匀光纤，计算出的所有导模的归一化截止频率值的相对误差为10 ~ (-3)10 ~ (- 5)。
For example, for a homogeneous optical fiber the computed relative error of normalized cutoff frequency for all guide-mode are between 10 ~ (-3) and 10 ~ (-5).
提出了一种测量微小角位移的新方法，该法基于一种金属包覆波导结构，通过棱镜耦合激发空气导波层中的超高阶导模作为灵敏探针。
Based on a symmetrical metal-cladding waveguide, ultrahigh-order modes in the guiding layer air gap can be excited through prism coupling to serve as sensitive probes.
提出了一种测量微小角位移的新方法，该法基于一种金属包覆波导结构，通过棱镜耦合激发空气导波层中的超高阶导模作为灵敏探针。
The free space coupling technique is utilized to excite the ultrahigh-order mode to act as a probe, which is considered to be very sensitive to the wavelength change.
在少模光纤的LP03模截止且LP02导通的参数范围内，计算了调制深度和耦合效率与少模光纤参数的关系。
Modulation depth and coupling efficiency were calculated in the range where LP03 mode are cut-off and LP02 mode are guided.
本文讨论计算机控制的多导心电隔离测量系统共模抑制性能设计的理论和实际问题。
This paper deals with theoretical and practical problems concerning the design of the common mode rejection performance in the isolated computer-controlled multichannel ECG systems.
本文讨论计算机控制的多导心电隔离测量系统共模抑制性能设计的理论和实际问题。
This paper deals with theoretical and practical problems concerning the design of the common mode rejection performance in the isolated computer-controlled multichannel ECG systems.
应用推荐