Spatial attributes of the diffraction field

J. Munoz-Lopez; G. Martínez Niconoff; G. Diaz-Gonzalez; J. Silva Barranco; P. Martínez Vara

doi:10.1117/12.2024337

26 September 2013 Spatial attributes of the diffraction field

J. Munoz-Lopez, G. Martínez Niconoff, G. Diaz-Gonzalez, J. Silva Barranco, P. Martínez Vara

Proceedings Volume 8855, Optics and Photonics for Information Processing VII; 88550W (2013) https://doi.org/10.1117/12.2024337
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Optical diffraction fields have in general a spatial complex structure and some times can generate focusing regions, in this work we describe the focusing region associated with highly symmetric transmittances, analyzing its associated phase function. We show that generic features can be studied from a differential equation for a focusing geometry, which is obtained through angular representation for diffraction fields, according to the choice of the parameters involved, the diffraction field presents a new focusing region whose geometry and spatial evolution can be described with the only analysis of the phase singularities avoiding the integral representation.

Citation Download Citation

J. Munoz-Lopez, G. Martínez Niconoff, G. Diaz-Gonzalez, J. Silva Barranco, and P. Martínez Vara "Spatial attributes of the diffraction field", Proc. SPIE 8855, Optics and Photonics for Information Processing VII, 88550W (26 September 2013); https://doi.org/10.1117/12.2024337

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KEYWORDS

Diffraction

Transmittance

Zone plates

Differential equations

Paraxial approximations

Wavefronts

Data processing

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