强激光与粒子束2001，Vol.13Issue(3)：299-302,4.
红外系统后向反射光的光强研究
The research of laser intensity reflected from infrared system
摘要
Abstract
According to the theory of diffraction, the intensity distribution of laser reflected from infrared system is analyzed. The diffraction pattern of spot center intensity in different transmission distance is studied and the relationship between spot intensity and radius is established. The reflection region can be divided into the transmission area, Fresnel diffraction area and Fraunhofer diffraction area. In Fresnel diffraction area, the intensity of spot center change light to dark, the intensity of spot center change violent vibration from 0～1 km, and reach peak value between 1～3 km, then reduce gradually with the reflection distance increasing. In Fraunhofer diffraction area, the spot center is light spot, around encircle light and dark ring．关键词
红外系统/菲涅耳衍射/夫琅和费衍射分类
信息技术与安全科学引用本文复制引用
张大勇,刘常龄,袁永华..红外系统后向反射光的光强研究[J].强激光与粒子束,2001,13(3):299-302,4.
