The definition of beam width is significant for the quality of laser beam.
在激光光束质量问题中，光束束宽的定义至关重要。
Based on the definition simple beam, the finite element method is used to analyse some simple beams, with symmetric structure and loading, and symmetric beams, with different support.
从简支梁定义出发，应用有限元法，对结构、受力对称的简支梁以及不同支承的对称梁进行了计算。
The new definition of the beam propagation factor for partially coherent light is proposed through the propagation equations of the cross-spectral density.
并依据部分相干光的交叉光谱密度的傍轴传输方程，重新定义了普遍的部分相干光的传输因子。
Different from the traditional Gaussian beam, there is no generous definition for vortex beam after propagation.
和传统的高斯光束不同，涡旋光束传输后的光斑尺寸没有较为统一的定义。
The concept of the beam propagation factor M2 is extended for chromatic laser beams. The definition of the beam propagation factor can be generalized with the weighted effective wavelength.
本文把激光光束的M2因子的概念扩展到了彩色激光光束，并定义彩色激光光束的M2因子为有效波长的加权平均。
Then the definition and structure of smart antenna are introduced, including multi-beam and adaptive array antenna.
阐明了智能天线的定义、组成，介绍了多波束天线和自适应天线阵。
Optical Beam Quality Factor of Nonparaxial Light Beams. I. Definition.
非傍轴光束的光束质量因子.I。定义。
Optical Beam Quality Factor of Nonparaxial Light Beams. I. Definition.
非傍轴光束的光束质量因子.I。定义。
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