METATOYs and optical vortices

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Authors	COURTIAL Johannes Klaus TYC Tomáš
Year of publication	2011
Type	Article in Periodical
Magazine / Source	Journal of Optics
MU Faculty or unit	Faculty of Science
Citation
Web	http://iopscience.iop.org/2040-8986/13/11/115704/
Doi	http://dx.doi.org/10.1088/2040-8978/13/11/115704
Field	Optics, masers and lasers
Keywords	metatoy;optical vortex;phase singularity;superfluid helium;
Description	METATOYs are regular structures of optical elements that change the direction of light rays according to various generalized refraction laws. They may introduce discontinuities into transmitted wavefronts and create ray fields that do not have wave-optical analogies. We show that in such cases optical vortices are created during propagation and that this is in close relation to the properties of the rotations of superfluid helium. We also analyze the vortex density for a particular example of a METATOY.
Related projects:	Highly Parallel and Distributed Computing Systems Mathematical structures and their physical applications