HU Li-yun~1, ZHOU Nan-run~2, LIU San-qiu~3 (1.College of Physics & Communication Electronics,Jiangxi Normal University,Nanchang 330027,China; 2.Department of Electronics Engineering,Shanghai Jiaotong University,Shanghai 20000,China; 3.Department of Physi
Abstract：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 Gaussia
2005, Vol. 29 