光学成像和失常，第二部分。波衍射光学。
Optical Imaging and Aberrations, Part II. Wave Diffraction Optics.
报道二维纯位相环带衍射光学透镜的研究。
The study of plane pure-phase equi-width ring diffractive optical lenses is reported.
本文使用衍射光学元件来提高激光束的焦深。
Focal depth of laser beam is advanced by diffraction optical element in this paper.
提出基于衍射光学器件的光学图像级联加密系统。
Cascaded systems for optical image encryption based on diffractive optical elements are presented.
提出基于衍射光学器件的光学图像级联加密系统。
Cascaded systems based on diffractive optical elements for optical image encryption are presented.
衍射光学是近年来光学领域中最具活力的研究方向之一。
There have been rapid developments in the research of diffractive optics for the past decade.
根据衍射光学理论分析了红外系统后向反射光强的分布。
According to the theory of diffraction, the intensity distribution of laser reflected from infrared system is analyzed.
该色分离光栅近场分析和计算模拟方法也可用于其他衍射光学元件。
This near field analytical method can be adopted to other diffraction optics.
摘要 ：总结了大尺寸衍射光学元件离子束刻蚀技术的研究进展。
Abstract : Ion beam etching technologies for developing large aperture Diffractive Optical Elements (DOEs) were reviewed.
用电子束逐行扫描方法刻蚀衍射光学元件的浮雕结构精度高而速度低。
The relief structure of diffraction optical element can be written precisely but very slowly with the raster scan mode bye-beam.
发现并研究了衍射光学器件优化设计中空间延拓分量的存在及其交叠现象。
The existence and overlapping phenomena of spatial expanding components have been discovered and investigated in designing diffractive optical elements.
此方法已成功地应用于自行研制的衍射光学元件三维表面形貌测量系统中。
The method has been successfully used in the system for measuring the 3-d surface topography of diffractive optical elements.
在入射光束的孔径受限制的情况下，利用衍射光学元件来增加激光束的焦深。
Placing a diffractive optical element(DOE) on the incident laser beam to improve the depth of focus, the DOE'S aperture is variable.
基于衍射光学原理，获得了微透镜的衍射效率与蚀刻深度误差之间的关系式。
Based on the diffraction optical principle, a formula of the diffraction efficiency and etching depth error of the microlens is obtained.
文中给出了几个实例，充分表明这是有实用价值的一种衍射光学元件设计方法。
Several examples shown in this Paper indicate that it is a valuable design method of the diffraction optical element.
提出加权串行迭代(WSI)算法用于解决衍射光学元件(DOE)的设计问题。
We have brought forward the weighted serial iterative (WSI) algorithm which is employed to resolve the design of diffractive optical elements (DOE).
利用衍射光学的技术与器件，能够突破受限于衍射极限的分辨率，实现光学超分辨。
With the techniques and elements of diffractive optics, it is now feasible to break the diffraction limit and achieve optical superresolution.
激光直写机是制作衍射光学元件的关键设备，离焦检测技术是其中的重要单元技术之一。
Laser direct writing system is the key equipment for fabrication of optical diffractive elements, and the defocus detection technique is the important sub-tech in it.
通过灰度掩模平面不同位置处提供可变的透过率，经一次光刻后得到所需的衍射光学元件。
A variable transmittance is provided to different position on grayscale mask plane and the required diffractive optical elements can be obtained after one-time exposure.
最后，对全息透镜和折射透镜的色散特性进行了比较，得到衍射光学元件的等效色散系数。
Finally, the chromatic dispersive characteristics of holographic lens and refractive lens are compared, and the effective chromatic coefficient of holographic lens is given.
为了提高激光直写加工衍射光学元件时的线条质量，提出一种离焦激光直写的线宽稳定方法。
A linewidth stabilizing method for defocusing laser direct writing is proposed for further improvement of line quality of diffractive optical elements.
衍射光学元件的制作技术主要包括激光或电子束直写、反应离子刻蚀、离子束铣及薄膜沉积。
DOE's fabrication techniques mainly include laser beam or electron beam writing, RIE, ion milling and thin film deposition.
在白光照射下，衍射光学透镜的焦距不仅同材料色散和波长色散有关，而且还同孔径因子有关。
When the diffractive optical lens is illuminated by white light, its focal length not only relates to material dispersion and wavelength dispersion, but also to aperture factor.
该工艺具有良好的可控性，解决了在厚基片上制作大口径衍射光学元件时残余光刻胶的去除问题。
The process was controllable and could be applied to strip the photoresist residual of diffractive optical element fabricated on the thick substrate.
本文以衍射光学为基础，详尽地分析了光束孔径匹配对光能耦合效率、光斑尺寸、物镜焦深的影响。
Based on the diffraction optics, this paper analysis the effect of aperture matching on EMR, size of focus point and focus depth of the object in detail.
因此液晶光栅的这种光电特性在衍射光学、光电开关、光束偏转控制等许多领域具有广泛的应用前景。
So liquid crystal grating is used in extensive field such as diffraction optics, photoelectric switch, deflexion controlling of light beam.
衍射光学元件(DOE)表面形貌的测量需要解决因表面结构深度较大和表面不连续给测量带来的困难。
The surfaces of diffraction optical element (DOE) are often deep and discontinuous, which lead to some difficulties for measurement of the 3-d surface topography of DOE.
介绍了将设计衍射光学元件的方法用于设计低旁瓣毫米波衍射天线的基本设计思想、设计结果和应用前景。
The basic idea, the result and the application prospects of the design of sidelobe depressed dielectric diffraction antenna using the diffraction optics elements designing method were introduced.
介绍了将设计衍射光学元件的方法用于设计低旁瓣毫米波衍射天线的基本设计思想、设计结果和应用前景。
The basic idea, the result and the application prospects of the design of sidelobe depressed dielectric diffraction antenna using the diffraction optics elements designing method were introduced.
应用推荐