光束

In other words, a beam of light required no time of transit.

换句话说，光束不存在传输时间。

From the high barbacans of the tower two shafts of light fall on the smokepalled altarstone.

从塔那高高的碉楼，两道光束倾泻至轻烟缭绕的祭台石面上。

Mills originally of the three-high type driven by beam engines with 42 1/2 ins.

米尔斯最初的三高型的发动机驱动的光束42 1 / 2的插件。

A new way to change the parameters of non-diffracting beam using a popular sphere lens telescope system is proposed based on the relationship of lens transform between non-diffracting beam and ring light source.

本文提出一种用普通球面透镜望远系统来改变无衍射光束参数的新方法。

By a piece of type-II critical phase matching biaxial crystal LBO for extra-cavity and for the compound system of telescope and Lens second-harmonic generation,green laser at 532 nm was achieved with average power of 40.6 mW,pulse duration of 16 ns, and peak power of 181 W.

先采用双凸透镜组合成的望远镜系统对1 063 nm的红外激光进行扩束，再对该光束聚焦，最后经双轴晶体LBO倍频后，得到了平均功率为40.6 mW，脉冲宽度为16 ns，重复频率为14 kHz，峰值功率高达181 W的绿光激光输出，1063 nm→532 nm的转换效率高达58%。

The focusing beam radius' ratio between the telescope lens compound system and the single lens increases via length (70~400mm) increasing, and the maximum ratio is 30, meanwhile the ratio between the telescope-lens compound system and the single lens decreases via length (70-400 mm) shorting, but the maximum difference of the focusing beam radius' is 0.043μm.

结果表明，随着距离(70~400mm)的增加，两者的聚焦效果相差增大，最大为30倍；随着距离(70~400mm)的减小，两者的聚焦效果相差减小；经望远镜和薄聚焦透镜组合系统聚焦的高斯光束束腰处光斑半径随距离(70~400mm)变化的最大值为0.043μm。

Now researchers at Harvard University have developed a new way of steering and manipulating light beams.

最近，哈佛大学的研究人员们开发出了一种引导和操纵光束的新技术。

The principles of applications of MLA, such as laser alignment, optical array generator, agile beam steering, and V-shaped light cone, et al., are expounded.

对微光学阵列在激光准直、阵列发生器、灵巧光束扫描器、抛物面反射型集能器阵列和V型光锥阵列等重要领域的应用原理和实现的技术途径进行了阐述，为微光学阵列器件的实用化奠定了基础。

The numerical results show that as the truncation parameter increases the actual focus shifts towards the lens and the spot size becomes larger gradually.

数值结果显示，由于透镜的孔径对高斯光束的截断使得焦点向着透镜迁移，截断参数愈大，焦移量愈大，成像光斑愈大。

Higher-order space-charge field effect on the self-deflection of a Gaussian beam is numerically investigated.

通过数值模拟的方法，研究了高阶空间电荷场对匹配高斯光束在光伏光折变晶体中自偏转特性的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。