查询词典 diffraction grating

The project involved:(1) Development of time and space resolved soft x-ray diagnostic instruments: a pinhole transmission grating streak spectrograph and a stigmatic grazing incidence grating flat-field streak spectrogrph, which are the most powerful in x-ray laser and laser plasma researches of our laboratory.

它们已成为我们实验室X射线激光和激光等离子体软X射线发射实验研究中最有力的诊断手段。（2）系统地研究了X射线激光增益介质—线状激光等离子体的均匀性。结果表明线聚焦激光照明的均匀性是实现均匀线性状激光等离子体的必要条件。

The EDFA dynamic gain equalizer based on HPDLC grating is developed according to the character of HPDLC grating's transmission spectrum.

根据聚合物分散液晶光栅的透射谱特性和其电压可调控特性的研究，提出了基于聚合物分散液晶光栅的掺铒光纤放大器动态增益均衡器。

The selected subject gives a general design of the grating auto testing instrument, by using the characteristics of orthogonal A and B signals output by optical encoder and symmetrical black and white linear transmission grating bar, and analyzing the means of the high electrical level of signals change to number of counter pluses.

本文通过分析了编码器输出两路信号的正交性(相位相差90°)与直线透射式光栅黑白栅条的分布均匀性的特性，应用把高电平宽度转换为计数脉冲的个数的测试方法，给出了光栅自动测试仪的总体设计方案。

We found that the grating motion direction discrimination deficits in anisometropic amblyopia can be almost completely accounted for by deficits in moving grating detection.

我们发现屈光参差性弱视对光栅运动方向辨别任务造成的损伤几乎可以全部归结于运动光栅检测的损伤。

For five anisometropic amblyopes and five normal controls, contrast sensitivities in both grating motion direction discrimination and moving grating detection were measured with the same moving sinewave stimuli over a wide range of spatial and temporal frequencies.

我们采用心理物理学方法研究了屈光参差性弱视患者对正弦运动光栅识别能力的损伤机制，测量了在一定时间空间频率下五名屈光参差性成人弱视患者和五名正常对照被试运动方向辨别和运动光栅检测的对比敏感度。

A new dynamic model is developed for simulating the widely tunable grating assisted codirectional coupler with rear sampled grating reflector lasers.

提出了一个新的分析模型，用于宽带可调谐GCSR激光器的动态特性模拟。

In the paper, a brand new measuring proposal which developed the foundation of conversional grating measurement has been introduced. It applies the electronic ocular (which essential element is CMOS image sensor) to the length measurement and uses the digital image processing technique subdivide the grating image in order to improve the distinguishability and accuracy of the system, and make the data processing, saving and transmission much more easier in the meantime.

本课题在现有的光栅计量基础上提出了一种全新的测量技术方案：结合现有的光栅计量技术，以电子目镜(核心元件为CMOS图像传感器)作为光电转换器件应用于长度测量系统，并采用计算机图像处理技术对测量的光栅图像进行数字化细分，以达到较高的系统分辨率及测量精度，并且使测量数据的处理、保存和传输更加简便。

According to the dependence of photorefractive effects (such as facular size effect, beam climbing effect, and competition rules between noise grating and signal grating) on various physical factors, we get an effective method controlling the intensity of the noise.

利用光折变效应中的光斑尺寸效应、光爬行效应以及晶体中信号栅与噪音栅之间的竞争规律对各种物理因素的依赖关系，摸索出一套控制噪音强弱的有效方法。

There are more advantages in holographic grating than in nicking grating such as no optical spectrum,no ghost line,high resolution ratio and so on.

全息光栅与刻痕光栅相比有着更多的优点，如光谱中无鬼线、杂散光少、分辨率高等，因此，全息术成了制作光栅的首选方法，其中光路的选用在制作过程中就尤为重要了，但现有的制作方法选用的光路却不是很恰当，为此，对其进行了改进。

The calculation takes into account the effects of grating period, noncollinear amplification geometry, crystal's length and pump intensity. The results show the grating period of PPLN and the noncollinear geometry has effects on the spectral bandwidth.

计算结果表明，参量带宽和增益带宽具有相似的特性，而且PPLN晶体的周期和非共线入射结构会对光参量放大的光谱带宽产生一定的影响，在同一波长处，通过调节晶体周期或非共线结构可以获得更大的带宽。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。