This single period layered phase grating, which has been tried out successfully for the first time by our institute, provides a kind of new element for the precision measurements.
由本院精密计量室初试成功的单周期层状位相光栅，为精密测试提供了一种新元件。
A vector theory for diffraction of multi step phase grating is presented.
采用矢量理论处理了多台阶位相光栅的衍射问题。
This expression is suitable for oil fi-lm phase grating with arbitrary form.
这个表达式适用于任意形状的油膜位相光栅。
In this paper, a generated method of 2-d binary phase grating by chemistry etching is presented.
本文介绍用化学蚀刻的方法制作二维二元位相光栅。
The efficiency of phase grating is limited by groove depth, material, duty ratio and wavelength.
衍射效率受光栅材料、凹槽厚度、占空比和所使用波长的影响。
The degenerate four-wave mixing process due to thermal phase grating in nematic liquid crystals is studied.
本文研究了向列相液晶中热致相位光栅产生的简并四波混频过程。
The moveable grating and the bottom mirror compose a phase grating whose phase difference is controlled by the actuating voltage.
上层可动光栅与下层反射镜构成一个位相光栅，其相位由外加驱动电压控制。
In this system, phase grating is formed after photoinduced trans-cis isomerization occurs on azo polymer and it separates with the liquid crystal.
该体系中的偶氮聚合物在光诱导下发生顺反式异构形成与液晶分离的相光栅。
In this paper, liquid crystal phase grating large screen protection system is introduced, and its fundamental diffraction characteristics are discussed.
本文介绍了一种液晶相位光栅大屏幕投影系统，讨论了液晶相位光栅的基本衍射特性。
The series density formulae of the binary phase grating are obtained from the general complex amplitude transmittance formulae through Fourier integral.
它直接从位相物体振幅透过率的一般公式出发，运用傅里叶积分，求得二进制位相光栅各级衍射光强度的通式。
Optical fibre grating utilize photosensitive characteristic to form the space phase grating in the core, it can change the transmission route of the light wave in the light-transmitting fibre.
光纤光栅是利用光纤材料的光敏性，在纤芯内形成空间相位光栅，它可以改变光波在光导纤维中的传输路径。
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
置一位相光栅于相干光学处理系统频谱平面，利用其零级与一级衍射光的相干迭加实现图象相减。
The Angle spectrum analysis of self-image of double frequency grating is given. The grating duplication and the measurement of lens focus are obtained by Tablot effect of holographic phase grating.
本文给出了双频光栅自成象的角谱分析，并利用位相型的全息双频光栅的太保效应来进行复制光栅和测定透镜焦距等。
The Angle spectrum analysis of self-image of double frequency grating is given. The grating duplication and the measurement of lens focus are obtained by Tablot effect of holographic phase grating.
本文给出了双频光栅自成象的角谱分析，并利用位相型的全息双频光栅的太保效应来进行复制光栅和测定透镜焦距等。
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