光栅

Investigating the mechanisms of amblyopia will help the understanding of several related visual functions in normal visual system and benefit to the clinic treatment. The first part of the experiments focused on the deficit in perceiving moving grating detection and direction discrimination in adult anisometropic amblyopia.

研究弱视的认知功能损害既具有重要的临床指导意义，又可为理解相关正常认知机制提供重要的参考依据，因此本论文的第一部分研究了屈光参差性成人弱视患者对运动光栅检测和运动光栅方向辨别的损伤机制。

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。

The strain gradient, the fiber Bragg grating's reflection and the short wavelength loss decide the two stopbands. Because of having no extra loss result from coupler and no high cost result from circuitor, the band pass filter formed by single chirped fiber grating have many good characters such as little insert loss its insert loss is the fiber splice loss, small volume, low cost and excellent property, moreover there is no report about fabricating filter by using this method, thus we will apply national invent paten about the method of fabrication fiber band pass filter using single chirped fiber grating. According to the parameters linearly chirped fiber gratings of Canada BRAGG Photonics Inc.

由于没有耦合器带来的3dB的额外损耗，也没有环行器带来的高的制作成本，用单支chirped光纤光栅形成可调光纤带通滤波器具有插入损耗极小（插入损耗为光纤与光纤之间的融接损耗）、体积小、制作成本低廉并且性能优良等特点，而且国内外还未见类似制作方法的报道，我们对用单支chirped光纤光栅形成可调光纤带通滤波器这一制作方法正在申请国家发明专利。

We employ the rigorous vector coupled-wave theory to analyze the electromagnetic diffraction nature of two-dimensional columned grid gratings.

通过计算机计算和模拟分析，我们给出了圆柱形网格光栅的抗反射特性与光栅参数和入射光波参数之间的关系。

Kinematically mounted gratings insure that afteralignment the grating used for experiments repeats its position.

符合运动学原理安装的光栅保证了在调准后的用于试验的光栅可以复位。

According to these formulas,the parameters of the lenticular lens for a 15-inch autostereoscopic display monitor was designed.

根据这些理论公式，为15英寸柱面透镜光栅自由立体显示器设计了柱面透镜光栅的参量，通过应用光学软件ASAP模拟该立体显示器的立体视区分布，得出该立体显示器能显示良好立体图像，从而验证了理论的正确性。

White, red, green, blue and their complementary colors, black, cyan, magneta and yellow are used to code the grating based on the binary system.

其中投影光栅用白、红、绿、蓝和它们的补色黑、青、品、黄按照四位二进制原理对光栅进行编码。

Four laser beams as 40K and 87Rb cooling and repump lights are obtained by using acoustic optic modulators to offset the frequencies from the three ECDL lasers. Four light beams with the different frequencies are injected into four slave lasers for injection locking, then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

采用三台外腔光栅反馈半导体激光器、四台注入锁定激光器和一台半导体激光放大器组成激光系统，三台外腔光栅反馈半导体激光器通过声光调制器产生四束光，分别作为40K和87Rb原子的冷却光和再抽运光，四束不同频率成份的激光分别注入锁定四台从激光器，然后Rb cooling光、K cooling光和K repump光再同时注入半导体激光放大器进行放大。

The laser diode system is composed of three external cavity diode lasers and four injection diode lasers and a tapered amplifier. Four laser beams as 40K and 87Rb cooling and repump lights are obtained by using acoustic optic modulators to offset the frequencies from the three ECDL lasers. Four light beams with the different frequencies are injected into four slave lasers for injection locking, then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

采用三台外腔光栅反馈半导体激光器、四台注入锁定激光器和一台半导体激光放大器组成激光系统，三台外腔光栅反馈半导体激光器通过声光调制器产生四束光，分别作为40K和87Rb原子的冷却光和再抽运光，四束不同频率成份的激光分别注入锁定四台从激光器，然后Rb cooling光、K cooling光和K repump光再同时注入半导体激光放大器进行放大。

Based on the mechanism of the fiber Bragg grating's cross-sensitivity to temperature and strain, a new fiber Bragg grating superficial bonded strain sensor with temperature compensation and strain sensibilization was designed and fabricated.

在分析光纤Bragg光栅的温度应变交叉敏感机理的基础上，设计并制作了一种新型的具有温度补偿和应变增敏效果的光纤Bragg光栅表面粘贴式应变传感器。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。