CAJ | 학술논문

在内场31.5 m的距离进行了YAG脉冲激光干扰CCD成像系统实验，首次出现了规律性圆形条纹。通过对实验过程、圆形条纹中心相对强度分布和成像特性结果分析，确定规律性圆形条纹产生的条件稳定，且是光学系统固有的；规律性圆形条纹与干扰亮斑成像特性不同。针对可能产生规律性圆形条纹的多种衍射和干涉，结合圆形条纹中心亮斑大小、圆形条纹位置分布、圆形条纹相对强度分布、成像特性和产生的可能性，进行了理论分析和实验结果对比。研究结果表明：实验中规律性圆形条纹为光学系统胶合透镜上下表面反射激光所产生的等厚干涉条纹。
재내장31.5 m적거리진행료YAG맥충격광간우CCD성상계통실험，수차출현료규률성원형조문。통과대실험과정、원형조문중심상대강도분포화성상특성결과분석，학정규률성원형조문산생적조건은정，차시광학계통고유적；규률성원형조문여간우량반성상특성불동。침대가능산생규률성원형조문적다충연사화간섭，결합원형조문중심량반대소、원형조문위치분포、원형조문상대강도분포、성상특성화산생적가능성，진행료이론분석화실험결과대비。연구결과표명：실험중규률성원형조문위광학계통효합투경상하표면반사격광소산생적등후간섭조문。
The concentric rings were reported for the first time when 532 nm YAG pulsed laser interfered CCD imaging system at the distance of 31.5 m under infield. According to analysis of experimental process, relative intensity distribution of concentric rings and imaging properties of CCD system, the generation conditions of concentric rings were found to be stable and inherent to the optical system. Meanwhile, the imaging properties of the concentric rings and laser spot were different. Aiming at various diffractions and interferences of the CCD optical system, the theory analysis and contrast of experimental results were done by combining with central spot size, positional distribution, relative intensity distribution, imaging properties and occurring probability of concentric rings in this paper. The results indicate that the concentric rings are formed from equal thickness interference of reflected laser between the top and bottom surface of the optical system cemented lens.