查询词典 reflection grating

The variations of the performance of the fiber Bragg grating Fabry-Perot etalon with the length of the cavity and the reflection coefficient of fiber Bragg grating have been discussed, according to the theory of fiber Bragg grating Fabry-Perot etalon.

并利用光纤光栅法布里-珀罗标准具理论，分析了光纤光栅标准具随腔长变化的性质、光纤光栅标准具随光栅反射率变化的性质。

A new-style system that automatically measures the diffraction efficiency of plane reflection grating was designed.

设计了一种快速自动测试平面反射光栅相对衍射效率的新型系统。

It extends the application of nanosecond laser in laser-induced microstructures,and provides a new method for micromachining reflection grating in metal.

该研究拓展了纳秒激光在加工微结构方面的应用，为在金属材料表面制作纳米压印模版提供了一种新方法。

Finally, We analyze and experimentally demonstrate that both the bandwidth of the fiber Bragg grating's short wavelength loss and the bandwidth of fiber Bragg grating's reflection increase with the increase of strain gradient along the length of grating.

最后，我们对光纤光栅的反射和短波损耗的应变特性作了理论分析和实验测试，发现在光纤光栅的反射带宽随光栅轴向应变梯度的增加而增加的同时，光栅短波损耗带宽也随光栅轴向应变梯度的增加而增加。

The experiment results indicate that this structure can measure the micrometer structure through reflection grating and precise process tool mark without shockproof environment.

实验结果显示：透过对於反射光栅、精密加工刀痕等的量测，得知本架构具有量测微结构的初步能力，不需特殊的防震环境，可进行超精密的量测。

A reflection type diffraction grating according to the present invention has a structure in which a metal film as a first layer with reflectance not lower than 30 % with respect to the wavelength of incident light and a transparent dielectric film as a second layer are laminated successively on the surface of the reflection type diffraction grating.

本发明的反射型衍射光栅的结构以金属膜为第一层，相对于入射光波长，具有不低于30％的反射率，以透明绝缘膜为第二层，所述第一和第二层依次被层叠在所述反射型衍射光栅的基底表面上。

Amazingly enough, a beam of electrons had thus been diffracted in a manner completely analogous to a light wave bouncing off a reflection grating

一束电子波衍射的方式，同光波从一个反射光栅上弹回的方式完全类似，这真是不可思议。

The results show that the ladder-shaped IDT can overcome shortcomings of adding reflection grating or reflector to simulate the internal reflection of IDT in traditional design and simulation,greatly reduce complexity of the simulation with δ function model,imitate its internal reflection with evolutionary structure and then simulate with Matlab.

结果表明，该结构克服了传统设计仿真时需加入反射栅或反射器来模拟叉指换能器内反射的缺点，大大缩减了δ函数模型仿真的繁杂性，通过自身结构的优化来模拟叉指换能器内反射，并运用δ函数对其建模，然后通过Matlab对其仿真。

Based on the influence of reflection phase of fibre Bragg grating on the transmission spectrum of fibre Bragg grating Fabry-Perot cavity, the reason for the error of traditional coupled mode theory when calculating the reflection phase of uniform FBG is analyzed.

基于光纤Bragg光栅反射复振幅相移对FBG法布里-珀罗腔透射谱的影响，分析了传统耦合模理论计算均匀FBG反射复振幅相移产生误差的原因。

The location of reflection spectrum varies with the grating period (corresponding to the Bragg wavelength of FBG), thus, by changing the grating period, the reflection spectrum of SFBG can be shifted by one wavelength spacing or more.

通过改变光纤光栅周期(对应光纤光栅布拉格波长)到适当的值，使超结构光纤光栅谱位移一个或者多个波长间隔，级联多个波长精确定位的超结构光纤光栅，实现了波分复用信道滤波器的宽带滤波。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。