Experimental demonstration of ray-rotation sheets

• 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
• 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.

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