November 8, 2005. – Mathematical details to derive the above formula. "The AiryDisk: An Explanation Of What It Is, And Why You Can’t Avoid It", Oldham Optical
)^{2})}}} 当平面光波入射穿过圆孔时,会形成圓对称的衍射图样,其中心部分最亮,这表示能量主要集中在其零级衍射斑处。上述图样的中心亮斑常被称为艾里斑(Airydisk)。:214:189-190根据远场近似,:189 I ( θ ) = I 0 ( 2 J 1 ( k a sin θ ) k a sin