查询词典 reflection grating

It was found that the transmission spectrum of the filter is the cosine function modulated reflection spectrum of the fiber grating.

结果表明该滤波器的透射光谱是余弦函数调制后的光纤光栅反射光谱。

A new type of geophone is presented,based on the narrow band transmission and free of back reflection features of long period fiber grating.

基于长周期光纤光栅能透射特定波长的性质，以及其无后向反射的优点，提出一种新型的长周期光纤光栅地震检波器系统。

By collecting images of fringes of equal chromatic order and comparing them,the influence of many factors on FECO and clearance calculation of surface forces apparatus,such as the distance between the object glass and the contact point,the grating constant of spectrometer,the angel between total reflection triple prism and the flat of inner beam path and so on,was analyzed.

通过采集图象进行对比分析的方法，讨论了表面力仪中物镜与接触点的距离、分光仪光栅常数、全反射三棱镜与单色仪光路光学平面夹角等因素对FECO条纹以及后续计算的影响，并介绍了表面力仪中计算表面间隙的两类主要方法。

Fiber Bragg grating; reflection wavelength ; high temperature characteristic ; temperature sensitivity coefficient

光纤布拉格光栅；反射波长；高温特性；温度灵敏度系数

Experimental results. show that the step number and ratio between the etching depth and the light wavelength are closely associated with the diffraction efficiency of reflection step grating.

初步试验表明，反射型阶梯光栅的衍射效率与台阶数、蚀刻深度与入射波长的比值均有密切相关。

We present a new method for alignment optical axis and axis of rotation in laser direct writing system using reflection of plane grating.

提出一种光栅反射对准法：在极坐标激光直写系统中利用光栅反射聚焦光斑来校准光轴和工件台的转动轴；被光栅反射的聚焦光斑成像在CCD上。

Different kind of physics parameters can be monitored by using the effect that the central reflection peak of short-period fiber grating shifts with the temperature or train variation.

利用短周期光纤光栅反射谱的中心波长随温度或应变变化的效应，对被测对象进行各种物理量的监测。

Ultrashort pulsed laser beam diffraction by one dimensional reflection volume holographic grating .

超短脉冲激光光束在一维反射型体全息光栅中的衍射。

V-I transmission matrix method is presented firstly in this paper to analyze the reflection spectral characteristics of fiber grating F-P cavity and the V-I transmission matrix model is established.

本文首次将V-I传输矩阵法用于光纤光栅F-P腔反射光谱特性的分析，并建立了V-I传输矩阵模型。

Lost and cost are two problems which are difficult to be resolved coinstantaneous in Fiber Bragg grating reflection signal pickup. We analyzed the spectra transmission characteristics of FBG Sagnac loop with coupled mode theory , and discussed the affection of optical path difference to its transmission.

论文利用模式耦合理论，对光纤Bragg光栅Sagnac环的传输特性进行细致的讨论，分析了光程差对其传输特性的影响，并提出了光纤光栅Sagnac环包络带通滤波器的概念，指出其在光纤光栅反射信号提取中的低损耗和低代价的特性，最后通过实验研究验证了理论上的分析和构想。

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。