瑞利距离

在光学及雷射科学中，瑞利距离（Rayleigh length）或瑞利范围（Rayleigh range）是指光束沿着其行进方向，从其腰部到其面积为腰部面积两倍的截面的距离，此时截面半径约为 $\sqrt { 2 }$ 倍的腰部半径。另一个相关的参数为共焦参数（confocal parameter）b，恰为瑞利距离的两倍。当用高斯光束来做为光束模型时，瑞利距离是相当重要的参数。

单词	Rayleigh length
释义	Rayleigh length 中文百科瑞利距离在光学及雷射科学中，瑞利距离（Rayleigh length）或瑞利范围（Rayleigh range）是指光束沿着其行进方向，从其腰部到其面积为腰部面积两倍的截面的距离，此时截面半径约为 $\sqrt { 2 }$ 倍的腰部半径。另一个相关的参数为共焦参数（confocal parameter）b，恰为瑞利距离的两倍。当用高斯光束来做为光束模型时，瑞利距离是相当重要的参数。英语百科 Rayleigh length 瑞利距离 In optics and especially laser science, the Rayleigh length or Rayleigh range is the distance along the propagation direction of a beam from the waist to the place where the area of the cross section is doubled. A related parameter is the confocal parameter, b, which is twice the Rayleigh length. The Rayleigh length is particularly important when beams are modeled as Gaussian beams.
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Rayleigh length

瑞利距离

Rayleigh length 瑞利距离