发散光束

本文对双折射波片在发散光束中引起的偏振像差进行了分析，并以石英1/4波片为例，给出了小角度入射情况下偏振像差与发散角的近似关系。

The polarized aberration of a birefrigent wave-plate produced in a divergent beam is analysed , the approximate relation between divergent angle and the aberration of a quartz wave-plate is given under the circumstance of small incident angle .

汉折射波片用于发散光束的偏振像差分析

Analysis on polarization aberration of a birefrigent wave-plate in divergent Beam

本文研究了MAXWELL鱼眼微球透镜对由光纤端部出射的发散光束的会聚作用。

The collimation of the divergent-beam coming out from the fiber by the MAXWELL fisheye micro-lens is discussed in this paper .

结果表明，对于一定的传输距离，随着发散光束初始曲率半径的减小，小尺度扰动的最大增长频率减小，相应的最大增益减小，即B积分值也减小。

It is found that for a given propagation distance , the fastest growing frequency , the maximum perturbation growth , and thus the B integral decrease with the decrease of the initial radius of divergent beams .

研究了发散光束的小尺度自聚焦效应。

The small-scale self-focusing of divergent beams is studied .

发散光束小尺度自聚焦特性的研究

Small - Scale Self - Focusing of Divergent Beams

论无衍射发散光束

Research on Diffraction-free Optical Beam Using Fourier Optics

增益介质中发散光束的小尺度自聚焦

Small-Scale Self-Focusing of Divergent Beams in Gain Medium

研究了发散光束初始曲率半径对小尺度自聚焦效应的影响。

The influence of the initial radius of divergent beams on small-scale self-focusing is discussed .

无衍射发散光束的判据

A Criteria on Diffraction-free Optical Beam

从傅里叶光学的概念出发，指出傅里叶光学的本征模和具有一定特征的一些本征模的组合就是无衍射发散光束，这为寻求和判断无衍射发散光束提供了一个简单的方法。

A easy method that seeks and identifies diffraction-free optical beam is presented according to the concept of Fourier Optics in this paper .

本文导出了发散光束和平行光束菲涅耳透镜基本公式，对公式进行了讨论，并且设计制作了两块透镜。

This paper derives and discusses the fundamental formulas for diverging and parallel light of Fresnel-type lense , also we have made two lenses .

三.提出了一种新的提高光参量放大增益带宽的方法，即采用发散光束泵浦光参量啁啾脉冲放大系统。

A new scheme of optical parametric amplification is proposed to improve the gain band width , which is optical parametric amplification pumped with diverged beams .

根据光线传播的基本原理，通过计算和推导，用解析式表达并讨论了半导体激光器快轴方向发散光束通过双曲柱面-平面透镜后的准直特性、光强分布和半宽度。

According to the basic principle of light-ray propagation , through calculations and deduction , the collimating characteristic , the intensity distribution of light energy and the half width are analytically showed and discussed .

整体平行束X光透镜能把点X光源发出的发散X光束聚焦后转变成准平行X光束。

Monolithic capillary X-ray lens can collect divergent white X-ray beam emitted from a point X-ray source into a quasi parallel beam .

对于它的远场分布、束宽、发散角等光束特性的研究却比较少，而这些特性对于HLDA光束质量评价及其光束整形系统设计具有重要意义。

But the beam characteristics of HLDA such as far-field distribution , beam width and divergence angle are rarely studied . These characteristics are crucial for the evaluation of HLDA beam quality and design of shaping system .

根据激光束的强度分布信息，可得到激光束的其他空间参数，如激光器的振荡模式、光束发散角、光束功率、光斑半径等重要参数。

The distribution of laser beams ' intensity leads to such important spatial parameters as oscillation modes of laser device , divergence angle of laser beams , the power of laser beams , laser radius etc.

本文的讨论为正确认识和使用微双曲柱面-平面透镜，改善半导体激光快轴方向光束的发散，提高光束质量提供了理论依据。

The consequence of this paper may be used to design a collimating system with micro-hyperboloid cylinder-plane lens that will considerably decrease the diverging angle in the fast axis direction of laser beam of a diode to meliorate its quality beam .

球面端面抛物型发散GRIN透镜的光束光学理论

Beam Optics of a Parabolic Defocusing GRIN Fiber Lens with Spherical End Surfaces

发现TE01模输出光束是一束发散的环状空心光束（可用于原子漏斗），而且这一光束能够近似地采用修正的TEM01模中空光束来描述。

We find the output beam is a dark hollow one which can be analyzed by the pattern of a TEM_ ( 01 ) donut mode .

除此之外，其激光输出具有远场发散角小、光束质量好等优点，因此受到了人们越来越广泛的关注。

Besides , the output beam of a laser based on a CCR has the advantages of the small far-field angle of divergence and good beam quality , which attracts people more and more scientific attention .

用瑞利长度和远场发散角分别描述光束在近场和远场的光束扩展特性，详细研究了部分相干环状光束在湍流中的扩展。

Taking the Rayleigh range and the far-field divergence angle as the characteristic parameters of near-field and far-field spreading respectively , the spreading of partially coherent annular beams both in free space and in turbulence is studied in detail .