根据几何光学理论，利用孔径场法进行了分析。
Based on geometrical optics theory, the re-radiation is analysed by using aperture field method.
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.
介绍两种快速测量单模光纤模场半径的方法及其测量装置——可变孔径法和移动圆孔法；
Two methods and devices which are changeable aperture and movable aperture for measuring the mode-field radius of single-mode optical fibers are presented.
讨论环形孔径高斯光束的远场光斑能量分布，并给出拟合表达式。
The energy distribution of far field spot for annular aperture Gaussian beam is discussed and the fitting expression is given.
这种显微镜利用局限在微小孔径上的隐失场提供物体表面形貌的细节，其分辨率可突破传统光学的衍射极限。
It utilizes the evanescent field confined at the tiny aperture for providing images of object surfaces with a resolution beyond the classical optical diffraction limit.
利用旋转孔径技术和锥镜剪切技术进行白光散斑剪切照相，检测动态位移导数场。
Rotating aperture cone shearing white-light speckle photography for measuring dynamic derivatives of displacements is proposed in this paper.
理论上可以使用光流或运动场估计进行分割，但其对噪声相当敏感，且分割精度也会因遮挡和孔径效应的影响而剧烈降低。
Optical flow or motion fields could theoretically be used, but they are extremely noise sensitive and their accuracy is limited due to the aperture and occlusion problem.
本文讨论一种用于单模光纤模场测量的连续变孔径方法。
This paper discusses a method of continuous variable aperture(CVAFF)to measure the mode-field diameter(MFD)in single-mode fibers.
采用光的矢量衍射理论 ，研究了场振幅为高斯分布的平面波入射到无球差高数值孔径物镜上 ，折射率失配对共焦显微术的影响 ，并进行数值模拟。
We considered intensity distribution of light focused by a high numerical aperture lens without spherical aberration through a planar interface between materials of mismatch refractive index.
采用两套旋转孔径散斑照相系统对动态三维位移场进行了研测。
A 3-d dynamic displacement field is studied and tested by use of two sets of rotation aperture spackle photographic system.
与采用相同口径、相同相对孔径的全息凹球面光栅构成的平场光谱仪比较，在入射狭缝宽度相同的情况下，该光栅所构成的平场光谱仪的分辨率得到明显提高。
Comparing this spectrograph to the one with a holographic concave grating on spherical surface, the former has a higher resolution than the latter has when the widths of the incident slits are same.
结果表明：发泡过程中保持均匀的温度场是制备孔径均匀的炭泡沫体的关键因素，压力是影响孔结构的主要因素。
It was found that an uniform temperature environment is the key to the preparation of carbon foams with uniform pore size and that the foaming pressure is the main factor for the control of pore size.
分析了流场的总体特点，得出了喷嘴孔径对PDC钻头井底流场的各种影响。
The overall characteristics of flow field are analyzed and various influences of nozzle diameter on the downhole flow field of PDC bits are obtained.
讨论了环形孔径高斯光束的远场光斑能量分布，并给出了拟合表达式。
The far-field irradiance distribution of a Gaussian beam which is transmitted from telescope with certain center obscure is researched in this paper.
讨论了环形孔径高斯光束的远场光斑能量分布，并给出了拟合表达式。
The far-field irradiance distribution of a Gaussian beam which is transmitted from telescope with certain center obscure is researched in this paper.
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