A team of physicists in the us has created an infrared laser beam at a point in mid air, by focusing a UV laser onto a tiny volume of oxygen molecules.
美国的一个物理学家团队通过将一束紫外激光聚焦于一小块氧分子中，发明了一种聚焦于半空中一点的红外激光束。
Pointing and focusing a laser beam on a target that is rocketing skyward at thousands of miles per hour is no easy task, but the Airborne laser is uniquely able to do the job.
对于飞行速度每小时数千英里的目标进行激光束瞄准和聚焦并不容易，但机载激光器是唯一能够完成这项工作。
The study of the focusing characteristics of laser beam is an important content in the study of laser propulsion technology.
激光束聚焦性能研究是激光推进技术研究中的一个重要内容。
The next thing is focusing with a laser beam on those things we did not do well.
下一个事情是，专注到那些我们做得不对的事情上。
The characteristic of beam focusing is a very important issue of the ICF laser system.
光束聚焦特性是ICF激光系统中备受关注的问题之一。
A new type of focusing lens which can focus a laser beam into a line of any length and its possible applications are proposed.
提出了一种能把激光束聚焦成任意长度的新型直线聚焦透镜及其可能的应用。
The laser beam passing through the focusing systems gets an facula, which consists of main spot and sidelobe on the focus plane.
由于光的衍射作用，使通过聚焦系统的激光束入射到特定靶面成一光斑（主光斑） ，而在主光斑以外还有次级光斑圈（旁瓣）。
A design method of laser focusing optical system is described and the design examples of optical system used for coupling laser beam and optical fiber are given.
结合激光光学理论，提出一种激光聚光光学系统的设计方法，并给出激光光束与光纤之间的耦合光学系统的设计实例。
The beam waist of the laser pulses after the focusing lens is measured by imaging method.
激光光束在聚焦透镜后的束腰半径可以由成像方法测得。
The device comprises a semiconductor laser light source, an optical beam shaping system, an optical beam transmission system, an optical beam scanning system, an optical focusing system, and the like.
该装置包括半导体激光光源、光束整形系统、光束传输系统、光束扫描系统、光学聚焦系统等。
In addition, it is because collimated laser beam is free of focusing problem that output image can be projected to curve surface.
另外由于准直的激光束不存在聚焦问题，输出的图像能够准确投影到曲面上。
Beam focusing is one of the most interesting subjects in the field of high-power-laser technology.
光束聚焦是强激光技术领域中令人感兴趣的课题之一。
A practical result of the design and a fine quality laser beam after focusing and shaping are given out.
给出了一种实用的设计方案和获得了高质量的聚焦、整形光束。
A practical result of the design and a fine quality laser beam after focusing and shaping are given out.
给出了一种实用的设计方案和获得了高质量的聚焦、整形光束。
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