• Geometric theory of Fresnel diffraction patterns - Part III. Boundaries having the shapes of the semi-circle and the segment of a circle

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/021/04/0194-0197

    • Keywords

       

      Geometric Theory; Minimum Path; Opposite Edge; Straight Edge; Curve Edge

    • Abstract

       

      In this paper, the Fresnel diffraction patterns exhibited by apertures and obstacles having the shapes of the semicircle and the segments of a circle are described and explained in terms of the general theory proposed in the first paper of these series. The transition for a semi-circular aperture from the Fresnel to the Fraunhofer class of phenomena as the size of the aperture is diminished is also illustrated.

    • Author Affiliations

       

      Y V Kathavate1

      1. Department of Physics, Indian Institute of Science, Bangalore
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