A second possibility, for more power-hungry devices, is to fire a finely focused infrared laser beam at a photovoltaic cell, which converts the beam back to electrical energy.
第二种可能性则能应用在更加耗电的设备上。其原理是发射一道精确聚焦的红外激光线，击中光伏电池，由此能够将光束转换回电能。
There is tremendous power in giving laser-beam-focused attention to just one idea, one project, or one objective at a time.
在一个时间，给一个念头，一项工程，或者一个目的给予激光束聚焦般的关注力量是很强大的。
My initial ideas focused on laser beam-type duels between friends in front of the camera.
我最初的想法是让朋友们在摄像机前面进行星球大战那样的激光剑格斗。
When light is focused even more as a laser beam, it can cut through steel.
当光被集中成为雷射线时，连钢铁都能穿透切断。
That means the beam produced is of higher quality than other lasers, is extremely straight (even by the exacting standards of a normal laser beam) and can thus be focused onto a small area.
(甚至符合正常激光束的严格标准)这样就能将能量集中传送到一个小的区域范围内。
Laser beam can be focused on a very tiny spot.
激光光束可以聚集到一个很小的小点上。
As an un-contacting system, it uses the feedback-information of the reaction of the focused laser beam and measured surface to measure the surface appearance parameters.
该仪器属于非接触式，使用聚焦的激光光束与被测表面相互作用所反馈的信息来进行表面形貌参数的测量。
In order to raise the couple efficiency of pumping double cladding fiber laser, the beam is reshaped with rectangular prisms, spatial filtered and focused with aspheric lens.
为了提高双包层光纤激光器泵浦光的耦合效率，对泵浦光采用直角棱镜组进行了光束整形、空间滤波、非球面镜聚焦。
When a focused, modulated exciting laser beam incidents onto a solid surface, besides generation of periodical temperature distribution, a periodical local surface deformation also occurs.
当一束聚焦的、调制的激励激光照射固体材料时，表面上除了产生周期性的温度分布，还产生局部的周期性形变。
Data can be crammed much tighter on a CD than on a magnetic floppy or hard drive because a laser beam can be focused to a much smaller point than magnetic heads.
数据在光盘上的排列比在软盘或硬盘上更加紧密，原因是激光束可以比磁头聚焦到更小的点上。
Laser rotating mirror scans the focused laser beam into lineation facula.
激光转镜以扫描方式将激光束聚焦扫描成线状光斑。
In this paper, high efficient backward stimulated Raman compression is obtained pumped by high power KrF laser using focused beam geometry.
利用聚焦的后向拉曼过程实现高功率准分子激光的高效脉冲压缩。
In chapter three, the trapping force of strong focused laser beam exerting to Mie particles and Rayleigh particles is calculated.
第二章介绍了激光捕获技术的基本原理，阐述了光镊捕获和操控粒子的机制。
Based on the diffraction integral theory, the quasi-focused characteristics of a laser beam with waviness modulation have been studied theoretically and numerically in the paper.
采用光波的衍射积分理论，对具有波纹调制激光束的准聚焦特性进行了理论分析。
But, when the doughnut laser beam is used as trapping light, relative index can be less than 1. The beam waist of focused laser beam has a virtual affection for the trapping force.
但是，在空心光束中可以实现对地折射率粒子的稳定捕获，即粒子的相对折射率可以小于1。
In this paper, we present a method of multiple slits for measure of laser collimation of atomic beam for laser-focused chromium (Cr) atomic deposition.
针对激光汇聚铬原子束沉积，提出了一种定性评价原子束横向准直度的多狭缝技术。
The radius and position of waist spot of CO2 laser beam focused by a single Ge lens were measured experimentally, and the focal length of the Ge lens was determined. The result is in agreement w...
实验测量了经单一锗透镜聚焦后的CO_2激光束的腰斑半径和位置，同时确定了聚焦锗透镜的焦距，其结果与实际情况一致。
The radius and position of waist spot of CO2 laser beam focused by a single Ge lens were measured experimentally, and the focal length of the Ge lens was determined. The result is in agreement w...
实验测量了经单一锗透镜聚焦后的CO_2激光束的腰斑半径和位置，同时确定了聚焦锗透镜的焦距，其结果与实际情况一致。
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