Algorithms for Fresnel Diffraction at Rectangular and Circular Apertures
نویسنده
چکیده
This paper summarizes the theory of Fresnel diffraction by plane rectangular and circular apertures with a view toward numerical computations. Approximations found in the earlier literature, and now obsolete, have been eliminated and replaced by algorithms suitable for use on a personal computer.
منابع مشابه
Fresnel Diffraction.nb
In this section we will look at the Fresnel diffraction for both circular apertures and rectangular apertures. To help our physical understanding we will begin our discussion by describing Fresnel zones. In the study of Fresnel diffraction it is convenient to divide the aperture into regions called Fresnel zones. Figure 1 shows a point source, S, illuminating an aperture a distance z 1 away. Th...
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عنوان ژورنال:
دوره 103 شماره
صفحات -
تاریخ انتشار 1998