查询词典 beam-focusing

The experimental results show that the increase of the centroid transverse displacement in the beam-pulse flattop duration is confined and the bigger energy-sweep beams are partially rejected in the alternate focusing solenoid field.

实验结果表明，采用交变极性聚焦场聚焦，抑制了束脉冲顶部质心横向运动的发展，同时可剔除束脉冲前后沿能散度较大的那部分束。

Using two-dimensional finite-difference time-domain method, the optical fields of solid immersion lens are studied when illuminated by focusing gauss beam.

采用二维时域有限差分(2D-FDTD)方法研究了高斯光束通过固体浸没透镜的光场分布特性。

Influence of the Kerr effect on the focusing property of the Gaussian beam［J］.

环形斑光束在非线性克尔介质中的自聚焦效应［J］。

In this paper, the propagation and focus properties for several modes describing hollow beam are analyzed, and the focus properties for hollow gaussian mode are particularly discussed. Furthermore, a new mode, high-order Bessel-Gauss mode, is put forward to describe hollow beams. The results for high order Bessel-Gauss beams propagating through lens focusing system and free space are derived by terms of Collins integral formula.

本文分析了几种描述空心光束数学模型的传输特性和聚焦特性，着重讨论了描述非中空光束的数学模型的聚焦特性；同时提出了一种描述完全中空的空心光束的新模型――高阶贝赛耳高斯模型，并且运用Collins积分公式，分析了这种新模型的空心光束的传输特性和聚焦特性。

The general analytical expression of the deformed high-order Bessel beam and its propagation properties of in self-focusing lens self-imaging process in free space wer.

从产生高阶贝塞尔光束的典型光路着手，通过将高阶贝塞尔光束分解为高阶贝塞尔余弦光束和高阶贝塞尔正弦光束，利用柱坐标下的Collins公式，分析了变形高阶贝塞尔光束的解析表达式和在自聚焦透镜中的传播。

The longitudinal component of electromagnetic wave propagating in fiber can be expressed by Based function or the modified Bessel function of second kind. Based on this principle, we put forward a simple method for generating a Bessel beam with glass capillary and focusing lens.

对光纤中传播的电磁场分析发现，其纵向分量可以用贝塞耳函数及第二类变态贝塞耳函数来描述，据此，提出一种利用玻璃毛细管和聚焦透镜实现贝塞尔光束的简易方法。

The present invention is a fiber optic waveguide adapted for focusing a beam of light at an obtuse angle to the optical axis.

本发明涉及一适用于将光束以钝角聚焦到光轴上的光纤波导。

A new method of high aspect ratio and resolution zoneplate fabrication using both electron beam lithography and X ray lithography technology is described The zoneplate, composed of 10μm thick Au with 30 zones and outest zone width of 0 5μm, can be used as a focusing and chromatic dispersion device for 0 1～1nm harder X rays Results show that the zoneplate has contrast of 10 and above, resolution of 0 55μm, and focus length of 21 3cm for 8keV X ray

介绍了利用电子束和 X射线束双曝光技术制作大高宽比高分辨率的 X射线聚焦或色散元件的新方法(波长范围为 1～ 5 nm )。所制做的厚度为 10μm的 Au波带片具有 30个波带，最外环的宽度为 0 。5μm。实验表明：对 8ke V的 X射线来说，波带片的衬度大于 10 ，分辨率为 0 。5 5μm，焦距为 2 1.3cm。

This surface works a bit like a giant radio telescope dish in reverse: Rather than focusing parallel astronomical light rays to a point, it collects the scattered plasmons emerging from a tiny sample--positioned strategically near the mirror--and redirects them into a plasmon "beam" in the metallic plane.

这个表面的工作原理相当于一个倒置的巨型射电望远镜的盘面，不同于天文望远镜把平行的天体光线会聚到一点，这一设计起到的作用是收集从一个位置恰好位于像点的微小样品散射出来的等离激元，并把他们重定向成金属平面上的一个等离激元束。

In order to improve high energy laser beam quality,with the combination of theory and experiment,the far field focusing characteristics of different serrate type apertures were studied and compared with those of circular apertures.

为了提高高能激光系统光束质量，采用理论和实验相结合方法，对圆孔光阑和齿形切趾光阑的远场聚焦特性进行了理论分析和实验验证，并与圆孔光阑的远场衍射作了比较。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。