Spatial attributes of diffraction free fields

J. Munoz-Lopez; G. Martinez-Niconoff; P. Martinez-Vara; S. I. De los Santos G.; M. A. Torres-Rodrìguez

doi:10.1117/12.2237478

26 September 2016 Spatial attributes of diffraction free fields

J. Munoz-Lopez, G. Martinez-Niconoff, P. Martinez-Vara, S. I. De los Santos G., M. A. Torres-Rodrìguez

Proceedings Volume 9961, Reflection, Scattering, and Diffraction from Surfaces V; 99610Z (2016) https://doi.org/10.1117/12.2237478
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

Optical diffraction fields have a not easy spatial structure, some times optical diffraction fields can generate a focusing region or caustic region, in this contribution, we describe the focusing region associated with highly symmetric transmittances, we analyze its associated phase function and show that generic features can be studied from a differential equation for a focusing geometry, which is obtained through angular representation for diffraction fields, the diffraction field presents focusing region whose geometry and spatial evolution can be described with the analysis of the phase singularities avoiding the integral representation. We show that in general the diffracted field has a decomposition in optical fields propagating along three optical axis mutually perpendicular. The decomposition is in terms of the Pearcey and Airy functions and generalized Airy function. Experimental results are shown.

Citation Download Citation

J. Munoz-Lopez, G. Martinez-Niconoff, P. Martinez-Vara, S. I. De los Santos G., and M. A. Torres-Rodrìguez "Spatial attributes of diffraction free fields", Proc. SPIE 9961, Reflection, Scattering, and Diffraction from Surfaces V, 99610Z (26 September 2016); https://doi.org/10.1117/12.2237478

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