Structure of boundary diffraction wave revisited |
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Authors: | R Kumar |
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Institution: | (1) Coherent Optics Division, Central Scientific Instruments Organisation, Sector 30, Chandigarh, 160030, India |
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Abstract: | The physically appealing boundary diffraction wave theory which suggests that diffraction patterns arise due to interference
of an undisturbed (geometrical) wave and the boundary diffraction wave generated by edge of the diffracting aperture, simplifies
the solution of diffraction problems by reducing the Fresnel–Kirchhoff surface integral into a line integral over the illuminated
boundary of the diffracting aperture. The present work reports experimental investigations carried out on the structure of
the boundary diffraction wave. It has been shown that the boundary diffraction wave is continuous behind the diffracting aperture
and apparently there does not exist any discontinuity at the geometrically light to shadow transition boundary, as is required
by the theory.
PACS 42.25.-p; 42.25.Fx; 42.25.Hz |
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Keywords: | |
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