摘要
从Collins公式出发,推导出了受硬边光阑限制的离轴高斯光束通过近轴ABCD光学系统的解析传输公式,用它详细研究了离轴高斯光束通过有光阑近轴ABCD光学系统的聚焦特性,并给出了计算例。研究表明:受光阑限制离轴高斯光束的光强分布与菲涅耳数、截断参数、相对传输距离、光束的相对偏移和倾角有关。
Starting from the Collins formula, the analytical equation for the off-axis Gaussian beam propagating through a paraxial ABCD optical system with hard-edged aperture is derived. By using the analytical equation, the focusing properties of off-axis Gaussian beams are investigated in detail and the results are illustrated by numerical calculations. It is shown that intensity distribution of apertured off-axes Gaussian beam depends on the Fresnel number, truncation parameter, relative propagation distance,relative excursion and obliquity of the beam.
出处
《南昌大学学报（理科版）》
CAS
北大核心
2005年第2期185-187,192,共4页
Journal of Nanchang University(Natural Science)
基金
江西省自然科学基金资助项目(0212020)
关键词
离轴高斯光束
硬边光阑
光学系统
聚焦特性
off-axis Gaussian beam
hard-edged aperture
optical system
focusing property
