菲涅耳衍射在标度—距离变换下的相似性

THE SIMILARITY OF FRESNEL DIFFRACTION UNDER SCALE-DISTANCE TRANSFORM

已有研究表明菲涅耳衍射图样在单纯的标度变换或距离变换下均无相似性 ,本文则进而指出在标度—距离同时变换下 ,菲涅耳衍射具有相似性 ,并讨论了这一性质在理论与实践中的意义和应用 .

While previous studies show that Fresnel diffraction has no similarity under scale transform or distance transform,this paper further indicates that Fresnel diffraction does have similarity under scale-distance transform.This new property has been theoretically analyzed and practically discussed.Some examples of its applications,such as in diffraction theory,diffraction pattern recording and observation,and holography,are also given.