Precision Modulation and the Shadow Blister Phenomenon in Optical Diffraction Using Straight-Edge Apertures



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Submitted Mar 18, 2024
Published Apr 23, 2024
10.24018/ejphysics.2024.6.2.304

Abstract viewed = 442 times

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The shadow blister effect, depicting the distortion of shadows when two objects overlap, is an optical phenomenon observable in sunlight without requiring specialized lab equipment. Despite its seemingly straightforward nature, this effect challenges explanation through ray theory and the Fresnel diffraction equation in certain regions. Conversely, the shadow blister effect exhibits both linear and nonlinear behavior corresponding to the steady variation of the transverse distance between the two unplanar straight edges along the optical axis. This article explores the shadow blister effect alongside the diffraction of a straight edge, revealing fundamental aspects of the diffraction phenomenon.

The experimental study introduces a diffraction model adept at elucidating the shadow blister effect. This model relies on an inhomogeneous fractal space, potentially generated by objects near their surfaces, including the edges of barriers.

Keywords: Fresnel diffraction Inhomogeneous Fractal Space Shadow Blister Straight Edge Diffraction

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