数值孔径

对于下一代光盘系统而言，GaN激光器和高数值孔径（NA）的物镜是关键组件。

In the next generation of optical disk system , GaN laser and high numerical aperture ( NA ) objective lens are two key components .

第二章，从特征方程出发，求解了大芯径、大数值孔径（典型值：直径980微米，NA为0.5左右）聚合物光纤的所有传导模式。

In the second chapter , by analyzing fiber mode equations , all transmission modes of POF with large diameter and large numerical aperture have been resolved successfully .

关于大数值孔径g线镜头的光刻工艺优化及实验方法

Optimized Optical Lithography Process for High NA G-Line Lenses and Experimental Method

提高光纤面板数值孔径（NA）测试精度的措施

Measures for Improving Test Accuracy of Numerical Aperture of Optic Fibre Plate

与CCD成像技术相比，共聚焦成像技术可以做到更大的数值孔径，具有更高的检测灵敏度。

Comparing with the CCD detecting technique , it has large NA and high resolution .

所拉制的光纤、数值孔径NA高达0.30。

The NA of the fibers to be drawn can be up to 0 30 .

GRIN透镜数值孔径测量

Measurement of GRIN Lens Numerical Aperture

在初期引入的生产型浸液式光刻中，将采用一个0.85数值孔径的ArF透镜。

For first pilot production with immersion , a 0.85 NA ArF lens will be used .

对于大数值孔径空心-高斯光束而言，光束阶数n也会影响位相奇点的分布，例如，在位相奇点的产生和湮灭过程，焦面上最里面的n个位相奇点不会消失。

For high NA dark-hollow Gaussian beams the beam order n additionally affects the spatial distribution of phase singularities , for example , the innermost n singularities in focal plane do not disappear in the creation and annihilation process .

随着IC集成度的提高，要求越来越高的光刻分辨力，但光学光刻的分辨极限受光刻物镜数值孔径（NA）和曝光波长（λ）的限制。

According to the demand of high data density of IC devices , higher photolithography resolution is required . The resolution of optical lithography is limited by objective lens NA of the imaging system and wavelength λ of the exposure source .

应用高数值孔径系统的矢量衍射理论研究了半球形固体浸没透镜（SIL）球面表面的反射对SIL系统透射场的影响。

The reflection effect of the spherical surface of a hemisphere solid immersion lens ( SIL ) has been investigated using the vectorial diffraction theory for high numerical aperture systems .

利用M（416B）实现远场光斑法测量光纤数值孔径

Measurement of Fiber N.A.by Far-Field Optical Spot Technique Using M_ ( 416B ) Analyzer

传统的光学光刻技术由于受光波波长和数值孔径等因素的限制难于制作特征尺度小于100nm的图案。

Due to the restrictions of light wavelength and numerical aperture , conventional lithography is difficult to obtain sub - 100 nm patterns .

本文介绍利用现有MCVD工艺制备大芯径、大数值孔径光纤预制棒的新工艺。

This paper presents the new technique for preparing the fiber preforms with large core and large N A by the conventional MCVD process .

报导了以测量角透过光强方法为基础的GRIN透镜数值孔径测试仪的工作原理、特点和测量结果，其测量不确定度U（2σ）达到0.8%。

The operation principle and features of GRIN Lens numerical aperture tester based on the angle transmission light density measurement are described . The measured results are given . The measuring uncertainty U ( ZG ) is 0 . 8 % .

采用大NA（数值孔径）和小NA的显微图像序列，比较分析了本文提出的评价函数和经典的归一化方差函数、熵函数、能量拉普拉斯函数以及另外两种基于小波变换评价函数的清晰度评价性能。

High NA ( Numerical Aperture ) and low NA microscope image sequences were used to compare the performance of this focus measure with the classic and popular focus measures Normalized Variance , Entropy , Energy Laplace and other two Wavelet-based High Frequency focus measures .

本文利用该模型研究了共焦系统的数值孔径对OCT系统成像深度的影响，估计了满足OCT相干条件的背向散射光的漫反射率。

The effect of numerical aperture of confocal system for the image depth of OCT is studied with new model . The diffuse reflection of back scattering light satisfied with OCT coherence condition is also estimated with this model .

结果表明，大数值孔径使成像光束中TM偏振光强度相对增加，影响成像对比度；提高像方介质的折射率，例如将像方介质改为折射率油，会改善此种偏振效应问题。

The results show that for the imaging light the intensity of TM polarized light relatively increases because of large numerical aperture , which will influence image quality . Imaging in high refractive index medium can be used to improve this polarization effect problem .

目前制备纳米光电子器件的核心技术&光刻技术，由于光波波长和数值孔径的限制以及衍射、散射与干涉等影响难于制作线宽小于100nm的图案。

At present , due to the restriction of light wavelength and numerical aperture , the key technology for fabricating optoelectronic devices & optical lithography is difficult to obtain sub-100 nm patterns .

利用旋涂法制备了三甲川菁染料掺杂高分子薄膜，室温下采用波长为532nm、数值孔径为0.65聚焦物镜的绿光存储装置研究了该染料薄膜的光存储特性。

A cyanine dye polymer film is made by spin-coated method , and the property of the film is studied with green light recording system with NA of 0.65 at room temperature .

本文介绍了在M（416B）折射率分布测试仪上，附加一些光学元件，组成光斑法测光纤数值孔径的测试装置。

This paper describes a setup for measuring fiber N. A. by optical spot technique using M_ ( 416B ) refractive index analyzer with some additional optical components .

h-SIL的焦深随透镜数值孔径的增加迅速单调减小，而s-SIL的焦深随透镜数值孔径的增加呈现出只一个周期的振荡行为。

As NA ( numerical aperture of lens ) increases , the focal depth of the h-SIL decreases rapidly and monotonously , whereas the focal depth of the s-SIL has a one-period-only oscillatory behavior .

基于有限元法对Yb-DC-PCF在0.8um-1.2um处的的模场有效面积、模场直径、数值孔径、非线性系数、色散等特性进行研究。

Based on the finite element method , we have studied the mode effective area , mode field diameter , numerical aperture , nonlinear coefficient and dispersion characteristics of Yb-DC-PCF .

用MCVD工艺加溶液掺杂法研制成功了大几何尺寸、大数值孔径内包层的掺Yb3+双包层石英光纤，内包层直径125μm，数值孔径达0.36。

Yb 3 + doped double clad silica fiber with large geometry and numerical aperture was developed by using MCVD process and solution doping technique . The diameter and numerical aperture of inner cladding are 125 μ m and 0.36 , respectively .

钛宝石再生放大器输出的脉冲宽度100fs、中心波长800nm、重复频率1kHz的超短脉冲激光束，用数值孔径0.68的显微物镜聚焦到LiF：F2晶体内部，通过移动晶体实现了三维逐位式数据写入；

Using NA 0.68 objective to focus on chirped amplified femtosecond laser pulse at 800 nm , 100 fs , 1 kHz inside LiF ∶ F2 crystal , writing in 3D was done successfully by moving crystal ;

基于几何光学与Rayleigh-Sommerfeld标量衍射理论，本论文建立了一种大数值孔径成像系统中DSE的衍射模型，能够方便地用于DSE的设计，克服了已有的衍射模型难以进行DSE设计的不足。

A diffraction model for the DSE in an imaging system with high numerical aperture is established on the basis of geometrical optics and Rayleigh-Sommerfeld scalar diffraction theory . This model can be conveniently used for designing a DSE , which is difficult for the existing models .

结果表明：当数值孔径相同时，h-SIL的焦深较s-SIL的焦深大，焦深对SIL的折射率比较敏感，而光斑大小对波长照明比较敏感。

The results show that the focal depth of the h-SIL is greater than that of the s-SIL . The focal depth of the system is sensitive to the refractive index of the SIL and the spot size is sensitive to the illuminating wavelength .

本实验采用的酸溶法光纤传像束，单丝直径为10μm，数值孔径为0.58，像束直径为1.4mm，端面像元素为16000，提高了系统的分辨率。

Acid solution optical fiber image bundle in this study is adopted . The monofil diameter is 10 μ m , the numerical aperture is 0.58 , The diameter of bundle is 1.4 mm , the picture element is 16000 , which enhances the system resolution .

因此对这标本需采用大数值孔径的物镜。

Hence the value of high numerical aperture for such specimens .

高数值孔径聚焦三维光链的研究

Study of 3D optical chain with highly focused vector beam