beam center meaning in English
波束中心
光束中心,亮区
光线中心线
射束中心
束流中心
Examples
- During these processes , diffraction , self - phase modulation , cross - phase modulation and physical distance between the beam centers all have important effects on the beams and the pulse beams propagation
在这些过程中，衍射、自相位调制、交叉相位调制、光束之间的间距等都对光束和脉冲光束在非线性介质中的传输产生重要的影响。 - We discuss the effect on the focusing of the probe beams for the five initial parameters : the amplitude of the pump beam , the separation between the pump and the probe beam centers , the wavelength ratio of the pump and the probe beams and the ratio of the initial beam widths at the directions of x and y . our numerical results show that , more the amplitude of the pump beam , the wavelength ratio of the pump and the probe beams and the ratio of the initial beam widths at the direction of y , more the probe focus ; the separation between the pump and the probe beam centers and the ratio of the initial beam widths at the direction of x have optimum values , respectively
研究了泵浦光束输入振幅、泵浦光束-信号光束初始偏移、泵浦光束-信号光束波长比和泵浦光束-信号光束x 、 y方向的初始束宽比五个参量对信号光束聚焦程度的影响。数值模拟结果表明，泵浦光束输入振幅越大、泵浦光束-信号光束波长比越大、 y方向束宽比越大，信号光束聚焦程度越大；泵浦光束-信号光束初始偏移和x方向初始束宽比都存在一个最佳值，使得光束聚焦达到最佳效果，有趣的是这两个最佳值的比值基本保持不变约为0 . 4 0 . 6 。