Experimental demonstration of ray-rotation sheets

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Authors	COURTIAL Johannes Klaus CHEN N. OGILVIE S. KIRKPATRICK B. HAMILTON A. GIBSON G. TYC Tomáš LOGEAN E. SCHARF T.
Year of publication	2018
Type	Article in Periodical
Magazine / Source	Journal of the Optical Society of America A
MU Faculty or unit	Faculty of Science
Citation
Web	https://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-35-7-1160
Doi	http://dx.doi.org/10.1364/JOSAA.35.001160
Keywords	CONFOCAL LENSLET ARRAYS; PHASE DISCONTINUITIES; GENERALIZED LAWS; REFRACTION; LIGHT; REFLECTION
Description	We have built microstructured sheets that rotate, on transmission, the direction of light rays by an arbitrary, but fixed, angle around the sheet normal. These ray-rotation sheets comprise two pairs of confocal lenticular arrays. In addition to rotating the direction of transmitted light rays, our sheets also offset ray position sideways on the scale of the diameter of the lenticules. If this ray offset is sufficiently small so that it cannot be resolved, our ray-rotation sheets appear to perform generalized refraction.
Related projects:	Ústav Eduarda Čecha pro algebru, geometrii a matematickou fyziku