查询词典 optical grating

In this paper,using numerical solution method of vector diffraction theory,we discuss the dependence of reflectivity upon structural parameters of subwavelength grating,particularly upon substrate thickness.It can be used as the basis for design and fabrication of binary optical element with proper antireflection property.

文摘：利用矢量衍射理论的数值求解方法，研究了亚波长光栅结构参数对反射率的影响，特别是基底厚度对反射率的影响，这些为设计和制作具有优良的抗反射性能的二元光学元件提供了设计依据。

Fiber Bragg Grating is one of the most development optical fiber passive components in recent years.

光纤布拉格光栅是近年来发展最为迅速的光纤无源器件之一。

Among them , it has introduces the function of chromatic dispersion of the grating and optical detection emphatically - Photocell .

其中着重介绍了光栅的色散作用以及光学检测器—光电池。

Its basic structure, which called as 2×2 optical cross connecter, is composed of a fiber Bragg grating and a bidirectional OC. Based on the basic structure, the required N×N OXC can be designed.

其基本结构由一个双向环行器与一个光纤布拉格光栅组成，构成一个2×2光交叉连接器，再根据这一基本结构设计出可满足实际需要的N×N光交叉连接器。

The optical system is mainly made up of special grating, cylindrical lens and CCD detector.

光路主要由特制光栅、柱面镜以及 CCD 探测器构成。

It uses a macro laser sensor based on optical-electronic triangulation method to get diametric size, and uses grating linear transducer and scanning sensor composed of laser diode and photo-diode to get axial size of the work-piece to be measured.

它利用基于光学三角法的激光位移传感器获得轴类零件的径向尺寸，利用半导体激光器与光电二极管组成的扫描式发讯传感器和光栅传感器的组合获得轴向尺寸。

Here, we design a new structure utilizing single layer dielectric subwavelength grating for polarization beam splitting around wavelength of 1.55μm. It also has potential in fiber communication or hybrid optical elements.

因此在本论文中提出一种新的设计，可以利用简单的单层次波长介电质光栅来实现不错的分光效率，具有在光纤通讯波长(1.55μm)上极化分光的效果以及制作复合型光学元件的潜力。

We will describe a technique of white light optical information processing with diffraction grating method and some of their applications.

本文讨论了作者所提出的白光信息处理系统的基本概念，以及用它在进行复数滤波、信号综合及平行光学处理诸方面的若干研究成果。

Optical feedback from an etalon and a diffractive grating.

3利用标准具和衍射光栅的反馈注入。

At last the structure tolerance of the expand core fiber is studied. And then the optical coupling efficiency imposed by the position of Gaussian beam on the grating is discussed by comparing the Gaussian beam output from expand core fiber, single mode fiber and free space Gaussian beam with waist radius of 16 microns.

最后分析了扩束光纤的结构容差，并讨论了所设计扩束光纤的输出光束、单模光纤的输出光束以及束腰半径为16 μm的自由空间高斯光束各自在光栅表面的位置变化对光栅耦合效率的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。