Experimental demonstration of a light-ray-direction-flipping METATOY based on confocal lenticular arrays
Michael Blair, Leo Clark, E. Alasdair Houston, Gary Smith, Jonathan, Leach, Alasdair Hamilton, and Johannes Courtial
TL;DR
This paper demonstrates both theoretically and experimentally that a sheet made of two confocal lenticular arrays can flip one component of light-ray direction, acting as a METATOY that alters light rays in a wave-incompatible manner.
Contribution
It provides the first experimental validation of a confocal lenticular array-based METATOY capable of flipping light-ray components, expanding the practical understanding of light-ray manipulation.
Findings
Experimental confirmation of light-ray flipping by lenticular arrays
Theoretical analysis matching experimental results
Identification of a METATOY structure that alters light-ray directions
Abstract
We show, theoretically and experimentally, that a sheet formed by two confocal lenticular arrays can flip one component of the local light-ray direction. Ray-optically, such a sheet is equivalent to a Dove-prism sheet, an example of a METATOY (metamaterial for light rays), a structure that changes the direction of transmitted light rays in a way that cannot be performed perfectly wave-optically.
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