离轴椭圆厄米-高斯光束通过一阶光学系统的变换特性

Transformation Properties of Off-axial Elliptical Hermit Gaussian Beams Passing Through Paraxial Systems

从Collins公式推导出离轴椭圆厄米 高斯光束通过一阶光学系统的变换关系 ,并以透镜系统为特例研究了偏心厄米 高斯光束的传输特性 ,在垂直于x轴截面内强度分布仍是厄米 高斯函数形式并保持阶次不变 。

Based on the Collins forms, the transformation properties of off-axial EHGB passing through paraxial systems are studied and the intensity distribution of the decentered EHGB is derived. Results show that the intensity distribution of the resulting beam is still a Gaussian function distribution in the plane perpendicular to z axis and the trajectory of its center position is a straight line passing through the focus of a thin lens.