Optical vortex beam,each photon of which carries orbital angular momentum,has attracted a great deal of attention in rec......

从理论和实验两方面研究了涡旋光束经菱形光阑后远场的衍射图样。结果发现，夫琅禾费衍射图样中暗条纹的数目正好等于入射涡旋光束的......