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4 September 2018 Singular features of the diffraction field
J. Munoz-Lopez, G. Martinez-Niconoff, P. Martinez-Vara
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Proceedings Volume 10750, Reflection, Scattering, and Diffraction from Surfaces VI; 107500S (2018) https://doi.org/10.1117/12.2321272
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States
Abstract
Diffraction fields many times can generate a focusing region, we describe the focusing region associated with symmetric transmittances, analyzing its associated phase function. We show that some generic features, it can be obtained from a differential equation for a focusing geometry, which is obtained through angular representation for diffraction fields, the diffraction field presents a new focusing region whose geometry and spatial evolution can be described with the analysis of the phase singularities avoiding the integral diffraction calculation.
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J. Munoz-Lopez, G. Martinez-Niconoff, and P. Martinez-Vara "Singular features of the diffraction field", Proc. SPIE 10750, Reflection, Scattering, and Diffraction from Surfaces VI, 107500S (4 September 2018); https://doi.org/10.1117/12.2321272
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KEYWORDS
Diffraction
Transmittance
Differential equations
Electromagnetism
Feature extraction
Fourier transforms
Geometrical optics
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