Classical Physics

    

The Cancellation of Diffraction In Wave Fields

Authors: Vladimir F. Tamari

A new model that describes the diffraction effect is presented, based on the concept of streamlined flow similar to that in fluid or aerodynamics. The field's energy follows curved paths around the diffracting obstacle, unlike the complicated network of straight interfering rays used in the Huygens-Fresnel wavelet concept or Young's explanation of diffraction as scattering of radiation from the aperture rim. Streamline Diffraction Theory (SDT), based on the equation of continuity In Maxwell's formulation for electromagnetic fields, suggests that it is possible to rectify or de-diffract (DD) the field by simple focusing methods near the aperture edge, thereby obtaining superresolution in the focused image, and non-diverging beams such as lasers. These concepts are describe qualitatively and heuristically, and some simple experiments that demonstrate DD are given.

Comments: 18 Pages. Originally published in 1987 in Optoelectronics - Devices and Technologies

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[v1] 2016-03-03 21:33:52

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