beam divergence
光束发散度：光束或电磁束随着离开发射点的距离增加
常用释义
英式发音
美式发音
基本释义
- 光束发散度：光束或电磁束随着离开发射点的距离增加，束直径或半径增加的程度。
例句
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1·We have also discussed the effect of the beam divergence on the second harmonic conversion efficiency.还讨论了泵浦束的发散角对二次谐波转换效率的影响。
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2·The experimental results of energy threshold, output energy and beam divergence of the first Stokes are present.文中给出了一阶斯托克斯光泵浦阈值、输出能量和光束质量的实验数据。
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3·The problem how to select optimum of signal-to-noise ratio and laser beam divergence for laser range-finder is studied.研讨激光测距仪的信噪比和激光发散角如何选取最佳值的问题。
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4·Since the severe asymmetry of optical field and beam divergence degrade the coupling efficiency, the waveguide structure optimizing needed.这就要提高激光器出射光场的对称性，减小光的散射角，这需要提高对激光器波导层的结构优化。
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5·For large probe beam divergence the SNR is relatively poor, and even a streaky signal process is predicted if a point target is scanned across.系统发射的探测光束发散角较大时，信噪比较差，且光束扫过点目标可能出现条纹状信号过程。
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6·According to acquisition and tracking strategy and laser detection theory, an expression of the best Angle of beam divergence under direct detection is provided.根据捕获跟踪策略和激光检测理论，给出了直接探测情况下最佳光束发散角的表示式。
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7·The output parameters such as beam divergence angle in far-field output power of high power solid state lasers are variable due to thermal effect of optical pumping.由于光泵浦热效应，高功率固体激光器的输出参数如光束远场发散角、输出功率等会发生变化。
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8·In this paper, the theoretical design for the quantum well lasers with vertically integrated passive waveguides, which decreases the vertical beam divergence effectively, are reported.报道了一种具有垂直集成无源波导的耦合波导结构量子阱激光器的理论设计，它可以使垂直结平面方向的远场光束发散角得到有效的降低。
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9·The results show that beam divergence of the system depends mainly on the extraction perveance and voltage ratio, and a minimum beam divergence can be obtained under optimum conditions.结果展示出引出束光学主要取决于引出导流系数和电势分布，在一定条件下可获得发散度小的离子束。
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10·The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.激光雷达系统的作用距离由下列因素决定：脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。