The five points difference method is used to calculate the voltage distribution on the meridian surface of axial-symmetrical electrostatic lens.
采用五点差分法计算轴对称静电透镜子午面上电位分布 ,再从普遍轨迹方程求得的电子轨迹出发得到透镜焦点和球差。
Design and fabrication of asymmetrical GRIN lens arrays;
非对称GRIN微透镜阵列的设计与制作
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