摘要
由于光的衍射作用 ,使通过聚焦系统的激光束入射到特定靶面成一光斑 (主光斑 ) ,而在主光斑以外还有次级光斑圈 (旁瓣 )。为了消减旁瓣 ,结合理论分析和神光装置聚焦系统的设计 ,提出了一种新的系统孔径遮挡分割法 ,从光的衍射理论和实验证明这种方法是有效的 。
The laser beam passing through the focusing systems gets an facula,which consists of main spot and sidelobe on the focus plane. In order to eliminate the sidelobe, a method of obstructing aperture of the focusing optical system is advanced. The experiment and the theory show that the sidelobe is reduced.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2001年第5期447-450,共4页
Chinese Journal of Lasers
关键词
衍射
光班
光学系统
旁瓣
傅里叶变换
diffraction, facula, optical system, sidelobe, Fourierism transform
